{"id":1542,"date":"2026-05-05T05:13:32","date_gmt":"2026-05-05T05:13:32","guid":{"rendered":"https:\/\/wormreducers.xyz\/?p=1542"},"modified":"2026-05-05T05:13:32","modified_gmt":"2026-05-05T05:13:32","slug":"worm-gear-reducer-lubricant-synthetic-pag-vs-mineral-clp","status":"publish","type":"post","link":"https:\/\/wormreducers.xyz\/fr\/worm-gear-reducer-lubricant-synthetic-pag-vs-mineral-clp\/","title":{"rendered":"Lubrifiant pour r\u00e9ducteur \u00e0 vis sans fin\u00a0: PAG synth\u00e9tique ou CLP min\u00e9ral"},"content":{"rendered":"<div style=\"position: relative; width: 100%; min-height: clamp(380px, 50vw, 520px); background: linear-gradient(rgba(6,40,29,0.78), rgba(6,40,29,0.78)), url('https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/Types-of-Worm-Gear-Reducer.webp') center\/cover no-repeat; display: flex; align-items: center; justify-content: center; padding: clamp(40px, 6vw, 80px) clamp(20px, 4vw, 60px); border-radius: 8px; margin-bottom: 28px; box-sizing: border-box;\">\n<div style=\"text-align: center; max-width: 920px; color: #ffffff;\">\n<h1 style=\"color: #ffffff; font-size: clamp(24px, 3.5vw + 8px, 42px); line-height: 1.25; margin: 0 0 18px; font-weight: bold; letter-spacing: -0.01em; text-shadow: 0 2px 8px rgba(0,0,0,0.3); word-break: break-word;\">Lubrifiant pour r\u00e9ducteur \u00e0 vis sans fin\u00a0: PAG synth\u00e9tique ou CLP min\u00e9ral<\/h1>\n<p style=\"color: rgba(255,255,255,0.92); font-size: clamp(15px, 1.6vw + 8px, 19px); line-height: 1.6; margin: 0 auto 28px; max-width: 760px;\">A side-by-side engineering comparison of synthetic polyalkylene glycol and mineral CLP gear oils \u2014 chemistry, properties, service-life economics, application matrix, switching rules, and the most common selection mistakes.<\/p>\n<p><a style=\"display: inline-block; padding: 14px 36px; background: #d97706; color: #ffffff; font-size: clamp(15px, 1.4vw + 6px, 17px); font-weight: bold; text-decoration: none; border-radius: 4px; letter-spacing: 0.02em; box-shadow: 0 4px 12px rgba(0,0,0,0.18);\" href=\"https:\/\/wormreducers.xyz\/fr\/contact-us\/\">Get a Lubricant-Specified Quote \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<p style=\"font-size: clamp(15px, 1.7vw + 8px, 18px); line-height: 1.75; margin: 0 0 22px; color: #1f2937; word-break: break-word;\">Lubricant choice changes worm gear reducer service life by a factor of 1.5-2\u00d7 and changes operating efficiency by 3-5 percentage points. The two dominant lubricant families across modern Korean and Asian worm gear reducer installations \u2014 synthetic PAG (polyalkylene glycol) and mineral CLP \u2014 differ in friction coefficient, oxidation resistance, viscosity-temperature behaviour, water tolerance and unit cost. Choosing correctly between them sits at the centre of maintenance economics on continuous-duty drives. The article below walks through the engineering trade-offs, lifetime cost analysis, application matrix and the compatibility rules for switching between lubricant families.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1446\" src=\"https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/Types-of-Worm-Gear-Reducer.webp\" alt=\"Types de r\u00e9ducteurs \u00e0 vis sans fin\" width=\"1341\" height=\"1173\" title=\"\" srcset=\"https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/Types-of-Worm-Gear-Reducer.webp 1341w, https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/Types-of-Worm-Gear-Reducer-1280x1120.webp 1280w, https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/Types-of-Worm-Gear-Reducer-980x857.webp 980w, https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/Types-of-Worm-Gear-Reducer-480x420.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1341px, 100vw\" \/><\/p>\n<p><!-- LUBRICANT SNAPSHOT \u2014 2 cards with chemical formulas at top --><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; margin: 0 0 32px;\">\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 280px; box-sizing: border-box; background: #ecfdf5; border: 2px solid #064e3b; border-radius: 8px; padding: clamp(18px, 2.5vw + 6px, 28px);\">\n<div style=\"display: inline-block; background: #064e3b; color: #ffffff; padding: 4px 12px; border-radius: 4px; font-size: clamp(11px, 1.2vw + 4px, 13px); font-weight: bold; letter-spacing: 0.06em; margin-bottom: 14px;\">SYNTHETIC PAG<\/div>\n<p style=\"margin: 0 0 8px; font-family: 'Courier New', monospace; font-size: clamp(15px, 1.6vw + 6px, 17px); font-weight: bold; color: #064e3b; line-height: 1.3;\">Polyalkylene Glycol<\/p>\n<p style=\"margin: 0 0 12px; font-family: 'Courier New', monospace; font-size: clamp(12px, 1.3vw + 4px, 13px); color: #6b7280; line-height: 1.5;\">\u2212(CH\u2082\u2212CH\u2082\u2212O)\u2099\u2212 backbone<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> ISO VG: 220 (standard for worm)<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Service interval: <strong>8,000 hours<\/strong><\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> \u03b7 benefit: <strong>+3-5 percentage points<\/strong><\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Cost: 3-4\u00d7 mineral baseline<\/li>\n<\/ul>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 280px; box-sizing: border-box; background: #fffbeb; border: 2px solid #d97706; border-radius: 8px; padding: clamp(18px, 2.5vw + 6px, 28px);\">\n<div style=\"display: inline-block; background: #d97706; color: #ffffff; padding: 4px 12px; border-radius: 4px; font-size: clamp(11px, 1.2vw + 4px, 13px); font-weight: bold; letter-spacing: 0.06em; margin-bottom: 14px;\">MINERAL CLP<\/div>\n<p style=\"margin: 0 0 8px; font-family: 'Courier New', monospace; font-size: clamp(15px, 1.6vw + 6px, 17px); font-weight: bold; color: #b45309; line-height: 1.3;\">Mineral Paraffinic Base<\/p>\n<p style=\"margin: 0 0 12px; font-family: 'Courier New', monospace; font-size: clamp(12px, 1.3vw + 4px, 13px); color: #6b7280; line-height: 1.5;\">Refined petroleum + EP additives<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> ISO VG: 220 (standard for worm)<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Service interval: <strong>4,000 hours<\/strong><\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> \u03b7 benefit: baseline (catalogue)<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Cost: baseline 1.0\u00d7<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3; letter-spacing: -0.005em;\">Why Lubricant Choice Matters More on Worm Gear Than on Helical or Planetary<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">Worm gear reducer mesh geometry generates more friction-heat per kilowatt of input power than any other industrial gear configuration. The sliding contact between the steel worm thread and the bronze wheel produces friction coefficients of 0.04-0.10 depending on lubricant \u2014 compared with 0.001-0.003 for the rolling contact in helical and planetary meshes. The lubricant in a worm gear reducer is doing 30-50\u00d7 more work per unit of input power than the same volume of oil in a helical gearbox.<\/p>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">The consequences cascade through the engineering economics. First, the lubricant&#8217;s friction coefficient directly sets the mesh efficiency \u2014 a 0.02 difference in \u03bc produces a 3-4 percentage point shift in \u03b7. Second, the heat that lubricant fails to manage well becomes oil temperature, which determines lubricant degradation rate and replacement interval. Third, the EP (extreme pressure) additive package determines whether the bronze surface develops a stable protective film or wears actively at the contact zone.<\/p>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">For helical and planetary gearboxes, lubricant differences between PAG and mineral families produce smaller engineering deltas \u2014 typically 0.5-1.5% efficiency change and 1.2-1.5\u00d7 service interval ratio. For worm gear reducer service, the same families produce 3-5% efficiency change and 2\u00d7 service interval ratio. The economic case for premium lubricants is correspondingly stronger on worm geometry.<\/p>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">PAG (Polyalkylene Glycol) \u2014 Properties and Applications<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 18px; color: #1f2937;\">Polyalkylene glycol is a synthetic gear oil family designed specifically for the demanding tribology of worm-on-bronze contact. The polyether backbone delivers a lower friction coefficient than mineral base oil (0.04-0.06 vs 0.07-0.10 with mineral), better viscosity-temperature stability across the operating range, and superior oxidation resistance at elevated temperature.<\/p>\n<div style=\"background: #ffffff; border: 1px solid #e5e7eb; border-top: 5px solid #064e3b; border-radius: 0 0 8px 8px; padding: clamp(18px, 2.5vw + 6px, 28px); margin: 0 0 24px;\">\n<div style=\"display: flex; flex-wrap: wrap; gap: 18px;\">\n<div style=\"flex: 1 1 calc(50% - 9px); min-width: 240px;\">\n<p style=\"margin: 0 0 8px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #064e3b; letter-spacing: 0.04em;\">\u25a3 KEY PROPERTIES<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Viscosity index: 200-240 (excellent)<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Pour point: \u221240 to \u221250 \u00b0C<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Max continuous T_oil: 95 \u00b0C<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Friction \u03bc (lubed bronze): 0.04-0.06<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #064e3b; font-weight: bold;\">\u25b8<\/span> Water solubility: yes (PAG-W variant)<\/li>\n<\/ul>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 9px); min-width: 240px;\">\n<p style=\"margin: 0 0 8px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #15803d; letter-spacing: 0.04em;\">\u2713 STRENGTHS<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0 0 12px; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #15803d; font-weight: bold;\">\u2192<\/span> 2\u00d7 service interval over mineral<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #15803d; font-weight: bold;\">\u2192<\/span> 3-5% mesh efficiency improvement<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #15803d; font-weight: bold;\">\u2192<\/span> 15 \u00b0C higher T_oil envelope<\/li>\n<\/ul>\n<p style=\"margin: 0 0 8px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #b91c1c; letter-spacing: 0.04em;\">\u2717 TRADE-OFFS<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #b91c1c; font-weight: bold;\">\u2717<\/span> 3-4\u00d7 per-litre cost premium<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #b91c1c; font-weight: bold;\">\u2717<\/span> Not compatible with mineral oil residues<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">PAG dominates premium worm gear reducer specifications across continuous-duty industrial applications \u2014 cement raw-mill feeds, mining auxiliaries, water treatment scrapers, paper-mill auxiliary drives. The lubricant cost premium recovers within 6-12 months on most installations above 1.5 kW running 8,000+ hours per year, through both energy savings and longer service intervals.<\/p>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">Mineral CLP \u2014 Properties and Applications<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 18px; color: #1f2937;\">Mineral CLP gear oil is the cost-balanced workhorse across light-duty and intermittent worm gear reducer applications. The &#8220;CLP&#8221; designation per DIN 51517-3 indicates a refined mineral base oil with anti-corrosion (C), anti-wear (L), and EP-additive (P) packages. Properties suit packaging machinery, construction lifts, light agitators, and any application where shorter service intervals and lower efficiency are acceptable trade-offs against the lower per-litre cost.<\/p>\n<div style=\"background: #ffffff; border: 1px solid #e5e7eb; border-top: 5px solid #d97706; border-radius: 0 0 8px 8px; padding: clamp(18px, 2.5vw + 6px, 28px); margin: 0 0 24px;\">\n<div style=\"display: flex; flex-wrap: wrap; gap: 18px;\">\n<div style=\"flex: 1 1 calc(50% - 9px); min-width: 240px;\">\n<p style=\"margin: 0 0 8px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #d97706; letter-spacing: 0.04em;\">\u25a3 KEY PROPERTIES<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Viscosity index: 95-110 (standard)<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Pour point: \u221215 to \u221225 \u00b0C<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Max continuous T_oil: 80 \u00b0C<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Friction \u03bc (lubed bronze): 0.07-0.10<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #d97706; font-weight: bold;\">\u25b8<\/span> Water tolerance: low (separates)<\/li>\n<\/ul>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 9px); min-width: 240px;\">\n<p style=\"margin: 0 0 8px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #15803d; letter-spacing: 0.04em;\">\u2713 STRENGTHS<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0 0 12px; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #15803d; font-weight: bold;\">\u2192<\/span> Lowest per-litre cost<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #15803d; font-weight: bold;\">\u2192<\/span> Universal supplier availability<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #15803d; font-weight: bold;\">\u2192<\/span> Compatible with most legacy units<\/li>\n<\/ul>\n<p style=\"margin: 0 0 8px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #b91c1c; letter-spacing: 0.04em;\">\u2717 TRADE-OFFS<\/p>\n<ul style=\"list-style: none; padding: 0; margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.7;\">\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #b91c1c; font-weight: bold;\">\u2717<\/span> Half the service interval of PAG<\/li>\n<li style=\"padding: 3px 0 3px 22px; position: relative; color: #374151;\"><span style=\"position: absolute; left: 0; color: #b91c1c; font-weight: bold;\">\u2717<\/span> Higher friction \u2192 lower mesh efficiency<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"text-align: center; margin: 22px 0;\">\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">Side-by-Side Property Comparison<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">The matrix below pulls every property from the deep-dive sections into a single cross-reference table. Highlighted cells indicate which lubricant leads the other on each property.<\/p>\n<div class=\"table-container\" style=\"overflow-x: auto; width: 100%; -webkit-overflow-scrolling: touch; margin: 16px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: clamp(13px, 1.5vw + 6px, 15px); min-width: 580px;\">\n<thead>\n<tr style=\"background: #064e3b; color: #ffffff;\">\n<th style=\"padding: 11px 12px; text-align: left; border: 1px solid #064e3b; font-weight: 600;\">Propri\u00e9t\u00e9<\/th>\n<th style=\"padding: 11px 12px; text-align: center; border: 1px solid #064e3b; font-weight: 600;\">Synthetic PAG<\/th>\n<th style=\"padding: 11px 12px; text-align: center; border: 1px solid #064e3b; font-weight: 600;\">Mineral CLP<\/th>\n<th style=\"padding: 11px 12px; text-align: center; border: 1px solid #064e3b; font-weight: 600;\">Winner<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Viscosity index<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">200-240<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">95-110<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<tr style=\"background: #fafafa;\">\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Pour point (\u00b0C)<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">\u221240 to \u221250<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">\u221215 to \u221225<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Max continuous T_oil<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">95 \u00b0C<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">80 \u00b0C<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<tr style=\"background: #fafafa;\">\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Friction coeff (lubed bronze)<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">0.04-0.06<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">0.07-0.10<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Service interval (rated)<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">8,000 h<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">4,000 h<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<tr style=\"background: #fafafa;\">\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Per-litre cost<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">3-4\u00d7 baseline<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #fffbeb; font-weight: bold;\">baseline 1.0\u00d7<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #d97706;\">Mineral<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Water tolerance (humid)<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">Excellent (PAG-W)<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">Mod\u00e9r\u00e9<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<tr style=\"background: #fafafa;\">\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; font-weight: 600;\">Mesh efficiency (\u0394)<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; background: #ecfdf5; font-weight: bold;\">+3-5 pp<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center;\">baseline<\/td>\n<td style=\"padding: 10px 12px; border: 1px solid #d1fae5; text-align: center; color: #064e3b;\">PAG<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">PAG wins on seven of eight properties; mineral CLP wins on one \u2014 per-litre cost. The single mineral advantage is large enough to dominate the economics on light-duty intermittent applications, but disappears on continuous-duty service when total ownership cost is calculated correctly.<\/p>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">Cost Analysis Over 5-Year Service Life<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 18px; color: #1f2937;\">The total cost comparison includes per-litre lubricant price, replacement frequency, labour for service, energy cost from efficiency difference, and downtime cost. The worked example below covers a typical Korean continuous-duty 5.5 kW worm gear reducer running 8,000 hours per year.<\/p>\n<p><!-- COST ANALYSIS WORKED EXAMPLE \u2014 emerald themed worksheet --><\/p>\n<div style=\"background: #ecfdf5; border: 2px solid #064e3b; border-radius: 8px; padding: clamp(18px, 2.5vw + 6px, 28px); margin: 0 0 28px;\">\n<p style=\"margin: 0 0 14px; font-size: clamp(13px, 1.3vw + 5px, 15px); font-weight: bold; color: #064e3b; letter-spacing: 0.06em;\">5-YEAR LUBRICANT COST CALCULATION (5.5 kW, 8,000 h\/yr)<\/p>\n<div style=\"margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px dashed #a7f3d0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #064e3b;\">Application baseline<\/p>\n<p style=\"margin: 0; font-family: 'Courier New', monospace; font-size: clamp(13px, 1.5vw + 6px, 15px); color: #1f2937; line-height: 1.6;\">Frame: NMRV 110 \/ oil sump: 5 L \u00a0|\u00a0 Korean industrial tariff: USD 0.10\/kWh<br \/>\nService labour: USD 80\/hour, 2 hours per oil change \u00a0|\u00a0 5-year horizon<\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px dashed #a7f3d0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #064e3b;\">Mineral CLP (5 changes over 5 years at 4,000 h interval)<\/p>\n<p style=\"margin: 0; font-family: 'Courier New', monospace; font-size: clamp(13px, 1.5vw + 6px, 15px); color: #1f2937; line-height: 1.6;\">Lubricant cost: 5 \u00d7 5 L \u00d7 USD 12 = USD 300<br \/>\nService labour: 5 \u00d7 2 h \u00d7 USD 80 = USD 800<br \/>\nEnergy at \u03b7 = 75%: 5.5\/0.75 \u00d7 8000 \u00d7 5 \u00d7 0.10 = USD 29,333<br \/>\nTotal mineral 5-yr cost: <strong>USD 30,433<\/strong><\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px dashed #a7f3d0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #064e3b;\">Synthetic PAG (3 changes over 5 years at 8,000 h interval)<\/p>\n<p style=\"margin: 0; font-family: 'Courier New', monospace; font-size: clamp(13px, 1.5vw + 6px, 15px); color: #1f2937; line-height: 1.6;\">Lubricant cost: 3 \u00d7 5 L \u00d7 USD 42 = USD 630<br \/>\nService labour: 3 \u00d7 2 h \u00d7 USD 80 = USD 480<br \/>\nEnergy at \u03b7 = 79%: 5.5\/0.79 \u00d7 8000 \u00d7 5 \u00d7 0.10 = USD 27,848<br \/>\nTotal PAG 5-yr cost: <strong>USD 28,958<\/strong><\/p>\n<\/div>\n<div>\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #064e3b;\">5-year savings with PAG specification<\/p>\n<p style=\"margin: 0; font-family: 'Courier New', monospace; font-size: clamp(13px, 1.5vw + 6px, 15px); color: #1f2937; line-height: 1.6;\">Mineral total: USD 30,433<br \/>\nPAG total: USD 28,958<br \/>\n<strong style=\"color: #15803d; font-size: clamp(14px, 1.6vw + 7px, 16px);\">Net savings with PAG: USD 1,475 over 5 years<\/strong><\/p>\n<\/div>\n<\/div>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 14px; color: #1f2937;\">The savings are modest in absolute dollars but consistent \u2014 PAG specification typically pays back its premium within 18-30 months on continuous-duty drives above 1.5 kW. For applications running fewer than 4,000 hours per year, the energy savings shrink proportionally and mineral CLP becomes cost-competitive again.<\/p>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">Application Matrix \u2014 Which Lubricant for Which Use<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 18px; color: #1f2937;\">Eight Korean and Asian application classes and the lubricant typically specified for each. The matrix combines duty cycle, environment, and economics into a recommendation for each application class. For agricultural drives where shock loading and wide-temperature service add complexity, see related notes on <a style=\"color: #d97706; text-decoration: underline; font-weight: 600;\" href=\"https:\/\/agriculturalgear-boxes.com\/\" target=\"_blank\" rel=\"noopener\">agricultural gearbox lubrication<\/a>.<\/p>\n<p><strong><img decoding=\"async\" class=\"aligncenter\" style=\"max-width: 380px; height: auto; display: inline-block; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.08);\" title=\"Agricultural Drive Lubricant Reference\" src=\"https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/agricultural-gearbox.webp\" alt=\"Agricultural gearbox companion product showing lubricant-critical drive systems where PAG synthetic delivers shock-loading and wide-temperature performance\" \/><\/strong><\/p>\n<p>&nbsp;<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; margin: 18px 0 24px;\">\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 280px; box-sizing: border-box;\">\n<div style=\"background: #064e3b; color: #ffffff; padding: 12px 16px; border-radius: 6px 6px 0 0; text-align: center;\">\n<p style=\"margin: 0; font-size: clamp(13px, 1.4vw + 5px, 15px); font-weight: bold; letter-spacing: 0.06em;\">\u25c6 PAG SPECIFIED<\/p>\n<\/div>\n<div style=\"background: #ecfdf5; padding: 12px; border-radius: 0 0 6px 6px;\">\n<div style=\"background: #ffffff; border-left: 3px solid #064e3b; padding: 10px 14px; margin-bottom: 8px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Cement raw-mill feed (24h)<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Continuous high-power; energy savings dominate.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-left: 3px solid #064e3b; padding: 10px 14px; margin-bottom: 8px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Marine deck winch<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Humid + chloride exposure; PAG-W water tolerance critical.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-left: 3px solid #064e3b; padding: 10px 14px; margin-bottom: 8px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Mining auxiliary drive<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Hot ambient + 24h duty; T_oil envelope decisive.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-left: 3px solid #064e3b; padding: 10px 14px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Outdoor solar tracker<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Wide temperature range (\u221230 to +50 \u00b0C) needs high VI.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 8px); min-width: 280px; box-sizing: border-box;\">\n<div style=\"background: #d97706; color: #ffffff; padding: 12px 16px; border-radius: 6px 6px 0 0; text-align: center;\">\n<p style=\"margin: 0; font-size: clamp(13px, 1.4vw + 5px, 15px); font-weight: bold; letter-spacing: 0.06em;\">\u25c6 MINERAL CLP SPECIFIED<\/p>\n<\/div>\n<div style=\"background: #fffbeb; padding: 12px; border-radius: 0 0 6px 6px;\">\n<div style=\"background: #ffffff; border-left: 3px solid #d97706; padding: 10px 14px; margin-bottom: 8px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Packaging line indexer (8h)<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Single shift duty; cost-balanced choice.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-left: 3px solid #d97706; padding: 10px 14px; margin-bottom: 8px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Construction screw jack<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Intermittent lifting duty; rare-use mineral acceptable.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-left: 3px solid #d97706; padding: 10px 14px; margin-bottom: 8px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Light agitator (\u22642 kW, 8h)<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">Low power \u00d7 short duty; energy savings minimal.<\/p>\n<\/div>\n<div style=\"background: #ffffff; border-left: 3px solid #d97706; padding: 10px 14px; border-radius: 0 4px 4px 0;\">\n<p style=\"margin: 0 0 4px; font-size: clamp(13px, 1.4vw + 5px, 14px); font-weight: bold; color: #1f2937;\">Stage drive (sporadic)<\/p>\n<p style=\"margin: 0; font-size: clamp(12px, 1.3vw + 4px, 13px); line-height: 1.5; color: #4b5563;\">&lt;500 hours\/yr; replacement interval not binding.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" style=\"max-width: 380px; height: auto; display: inline-block; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.08);\" title=\"Lubricated Wear Pair Reference\" src=\"https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/worm-and-worm-wheel.webp\" alt=\"Worm and worm wheel pair showing the steel-bronze sliding contact zone where lubricant film integrity determines wear life\" \/>\u00a0 \u00a0 \u00a0<img decoding=\"async\" style=\"max-width: 380px; height: auto; display: inline-block; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.08);\" title=\"Lubricated Frame Reference\" src=\"https:\/\/wormreducers.xyz\/wp-content\/uploads\/2026\/04\/MRV050-Worm-Gear-Reducer1.webp\" alt=\"Worm gear reducer with synthetic PAG ISO VG 220 fill for typical Korean continuous-duty industrial application\" \/><\/p>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">Switching Between Lubricant Families \u2014 Compatibility Rules<\/h2>\n<p style=\"font-size: clamp(14px, 1.8vw + 9px, 17px); line-height: 1.75; margin: 0 0 18px; color: #1f2937;\">Switching from mineral CLP to synthetic PAG (or back) on an existing worm gear reducer installation requires care. PAG and mineral are not chemically compatible \u2014 mixing residues compromises both lubricants. Three compatibility rules govern when switching works cleanly and when it requires extra steps.<\/p>\n<p><!-- 3 COMPATIBILITY RULE CARDS \u2014 green\/yellow\/red traffic light --><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 18px 0 28px;\">\n<div style=\"flex: 1 1 calc(33.333% - 10px); min-width: 260px; box-sizing: border-box; background: #ffffff; border: 1px solid #e5e7eb; border-left: 4px solid #16a34a; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #15803d; letter-spacing: 0.04em;\">RULE 01 \u2192 SAFE<\/p>\n<p style=\"margin: 0 0 6px; font-size: clamp(15px, 1.6vw + 6px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Same family \u2192 same family<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.5; color: #4b5563;\">Mineral CLP brand A \u2192 Mineral CLP brand B works directly. PAG to PAG works directly. Same-family viscosity grade change works directly.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.333% - 10px); min-width: 260px; box-sizing: border-box; background: #ffffff; border: 1px solid #e5e7eb; border-left: 4px solid #ca8a04; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #ca8a04; letter-spacing: 0.04em;\">RULE 02 \u2192 REQUIRES FLUSH<\/p>\n<p style=\"margin: 0 0 6px; font-size: clamp(15px, 1.6vw + 6px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Mineral CLP \u2192 Synthetic PAG<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.5; color: #4b5563;\">Drain fully, flush twice with new PAG (50% volume each), drain again, then fill. Residual mineral &gt; 5% destabilises PAG additive package.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.333% - 10px); min-width: 260px; box-sizing: border-box; background: #ffffff; border: 1px solid #e5e7eb; border-left: 4px solid #dc2626; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #b91c1c; letter-spacing: 0.04em;\">RULE 03 \u2192 AVOID<\/p>\n<p style=\"margin: 0 0 6px; font-size: clamp(15px, 1.6vw + 6px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Topping up PAG with mineral<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 6px, 14px); line-height: 1.5; color: #4b5563;\">Never top up PAG with mineral oil \u2014 incompatibility forms gel, blocks oil channels and accelerates wear. Use the same PAG specification for top-ups.<\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">Five Common Lubricant Selection Mistakes<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 18px 0 28px;\">\n<div style=\"flex: 1 1 calc(50% - 7px); min-width: 280px; box-sizing: border-box; background: #fffbeb; border: 1px solid #fde68a; border-left: 4px solid #d97706; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #d97706; letter-spacing: 0.04em;\"><span style=\"margin-right: 6px;\">\u25cf<\/span>MISTAKE 01<\/p>\n<p style=\"margin: 0 0 8px; font-size: clamp(15px, 1.6vw + 7px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Specifying ISO VG 100 instead of VG 220<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 7px, 14px); line-height: 1.6; color: #4b5563;\">Worm gear reducer needs VG 220 to maintain film at high contact pressure. Lighter grades film-fail under load and accelerate wear.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 7px); min-width: 280px; box-sizing: border-box; background: #fffbeb; border: 1px solid #fde68a; border-left: 4px solid #d97706; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #d97706; letter-spacing: 0.04em;\"><span style=\"margin-right: 6px;\">\u25cf<\/span>MISTAKE 02<\/p>\n<p style=\"margin: 0 0 8px; font-size: clamp(15px, 1.6vw + 7px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Topping up PAG with mineral oil<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 7px, 14px); line-height: 1.6; color: #4b5563;\">Cross-family mixing forms gel, blocks oil galleries, breaks additive package. Always use same-family top-up.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 7px); min-width: 280px; box-sizing: border-box; background: #fffbeb; border: 1px solid #fde68a; border-left: 4px solid #d97706; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #d97706; letter-spacing: 0.04em;\"><span style=\"margin-right: 6px;\">\u25cf<\/span>MISTAKE 03<\/p>\n<p style=\"margin: 0 0 8px; font-size: clamp(15px, 1.6vw + 7px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Using engine oil instead of gear oil<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 7px, 14px); line-height: 1.6; color: #4b5563;\">Engine oils lack EP additives needed for worm-bronze sliding contact. Use designated CLP\/PAG gear oil only.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 7px); min-width: 280px; box-sizing: border-box; background: #fffbeb; border: 1px solid #fde68a; border-left: 4px solid #d97706; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #d97706; letter-spacing: 0.04em;\"><span style=\"margin-right: 6px;\">\u25cf<\/span>MISTAKE 04<\/p>\n<p style=\"margin: 0 0 8px; font-size: clamp(15px, 1.6vw + 7px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Skipping flush during family switch<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 7px, 14px); line-height: 1.6; color: #4b5563;\">Residual mineral \u2265 5% in fresh PAG fill destabilises the synthetic. Always flush twice when switching families.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 7px); min-width: 280px; box-sizing: border-box; background: #fffbeb; border: 1px solid #fde68a; border-left: 4px solid #d97706; border-radius: 0 6px 6px 0; padding: clamp(14px, 2vw + 4px, 18px);\">\n<p style=\"margin: 0 0 6px; font-size: clamp(13px, 1.3vw + 5px, 14px); font-weight: bold; color: #d97706; letter-spacing: 0.04em;\"><span style=\"margin-right: 6px;\">\u25cf<\/span>MISTAKE 05<\/p>\n<p style=\"margin: 0 0 8px; font-size: clamp(15px, 1.6vw + 7px, 16px); font-weight: bold; color: #1f2937; line-height: 1.4;\">Ignoring food-grade requirement<\/p>\n<p style=\"margin: 0; font-size: clamp(13px, 1.5vw + 7px, 14px); line-height: 1.6; color: #4b5563;\">Food-processing worm gear reducer needs NSF H1-rated lubricant. Standard PAG\/CLP not certified for incidental food contact.<\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(20px, 2.6vw + 12px, 28px); color: #064e3b; margin: 38px 0 18px; padding: 8px 0 12px 18px; border-left: 5px solid #d97706; border-bottom: 3px double #d1fae5; font-weight: bold; line-height: 1.3;\">PAG vs Mineral CLP FAQ<\/h2>\n<div style=\"margin: 14px 0;\">\n<div style=\"margin-bottom: 14px; padding: clamp(11px, 1.4vw + 5px, 16px) clamp(13px, 1.6vw + 6px, 18px); background: #ecfdf5; border-left: 3px solid #d97706; border-radius: 0 6px 6px 0; word-break: break-word;\">\n<p style=\"margin: 0 0 6px; font-size: clamp(14px, 1.7vw + 8px, 17px);\"><strong style=\"color: #064e3b;\">Q: What ISO VG grade should I specify for a typical worm gear reducer?<\/strong><\/p>\n<p style=\"margin: 0; font-size: clamp(14px, 1.6vw + 8px, 16px); line-height: 1.65; color: #1f2937;\">A: ISO VG 220 covers most standard ambient (10-40 \u00b0C) worm gear reducer operation. For very cold ambient (\u22640 \u00b0C), drop to VG 150. For very hot ambient (\u226545 \u00b0C continuous) or heavy load, step up to VG 320 or VG 460. The lubricant supplier datasheet shows the operating-temperature window for each grade \u2014 pick the grade whose midpoint matches your ambient temperature average.<\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding: clamp(11px, 1.4vw + 5px, 16px) clamp(13px, 1.6vw + 6px, 18px); background: #ecfdf5; border-left: 3px solid #d97706; border-radius: 0 6px 6px 0;\">\n<p style=\"margin: 0 0 6px; font-size: clamp(14px, 1.7vw + 8px, 17px);\"><strong style=\"color: #064e3b;\">Q: Can I use synthetic PAG in a worm gear reducer that was originally filled with mineral CLP?<\/strong><\/p>\n<p style=\"margin: 0; font-size: clamp(14px, 1.6vw + 8px, 16px); line-height: 1.65; color: #1f2937;\">A: Yes, after a thorough flush. Drain the mineral fully, flush the housing twice with new PAG (filling to 50% then draining each time), then fill normally. The procedure removes residual mineral that would otherwise contaminate the new PAG fill. Most worm gear reducer brands accept either lubricant family without housing modifications. Confirm with the manufacturer if the unit has unusual seal materials \u2014 some legacy seal compounds suit one family better than the other.<\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding: clamp(11px, 1.4vw + 5px, 16px) clamp(13px, 1.6vw + 6px, 18px); background: #ecfdf5; border-left: 3px solid #d97706; border-radius: 0 6px 6px 0;\">\n<p style=\"margin: 0 0 6px; font-size: clamp(14px, 1.7vw + 8px, 17px);\"><strong style=\"color: #064e3b;\">Q: Does PAG damage paints, hose materials, or sealants used in worm gear reducer construction?<\/strong><\/p>\n<p style=\"margin: 0; font-size: clamp(14px, 1.6vw + 8px, 16px); line-height: 1.65; color: #1f2937;\">A: PAG attacks some legacy paint systems and natural rubber components but is fully compatible with modern epoxy-painted worm gear reducer housings, NBR seals, FPM viton seals, and standard polyurethane hose. The exception worth checking: very old units (pre-1985) with shellac-based housing paints can develop paint blistering on the inside of the housing. Modern enamel paints handle PAG without issue. For seal compatibility, NBR is fine in both PAG and mineral; FPM is preferred for hot PAG applications.<\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding: clamp(11px, 1.4vw + 5px, 16px) clamp(13px, 1.6vw + 6px, 18px); background: #ecfdf5; border-left: 3px solid #d97706; border-radius: 0 6px 6px 0;\">\n<p style=\"margin: 0 0 6px; font-size: clamp(14px, 1.7vw + 8px, 17px);\"><strong style=\"color: #064e3b;\">Q: How do I check whether the original lubricant in a delivered worm gear reducer is PAG or mineral?<\/strong><\/p>\n<p style=\"margin: 0; font-size: clamp(14px, 1.6vw + 8px, 16px); line-height: 1.65; color: #1f2937;\">A: Three indirect tests. First, the manufacturer datasheet usually states the factory fill. Second, a small sample dropped on water \u2014 PAG dissolves slightly in water (PAG-W especially) while mineral oil floats and separates cleanly. Third, the colour \u2014 fresh PAG is typically clear-to-pale-yellow, while fresh mineral CLP is typically golden-amber. Be cautious of dyed lubricants \u2014 some manufacturers add dye for contamination indication, which makes the colour test unreliable. The water-droplet test is the most definitive field check.<\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding: clamp(11px, 1.4vw + 5px, 16px) clamp(13px, 1.6vw + 6px, 18px); background: #ecfdf5; border-left: 3px solid #d97706; border-radius: 0 6px 6px 0;\">\n<p style=\"margin: 0 0 6px; font-size: clamp(14px, 1.7vw + 8px, 17px);\"><strong style=\"color: #064e3b;\">Q: What&#8217;s the food-grade lubricant equivalent for PAG and mineral CLP?<\/strong><\/p>\n<p style=\"margin: 0; font-size: clamp(14px, 1.6vw + 8px, 16px); line-height: 1.65; color: #1f2937;\">A: NSF H1-rated synthetic gear oils replace standard PAG in food-processing worm gear reducer applications. Common products include Kl\u00fcber Kl\u00fcbersynth UH1 series, Mobil SHC Cibus 220, and Total Nevastane SY 220. These are PAG-equivalent in performance with food-contact certification. Standard mineral CLP has limited NSF-rated equivalents \u2014 most food applications skip directly to NSF-rated synthetic. Service interval and engineering performance are comparable to industrial-grade PAG; cost premium runs 1.5-2\u00d7 over standard PAG.<\/p>\n<\/div>\n<div style=\"margin-bottom: 14px; padding: clamp(11px, 1.4vw + 5px, 16px) clamp(13px, 1.6vw + 6px, 18px); background: #ecfdf5; border-left: 3px solid #d97706; border-radius: 0 6px 6px 0;\">\n<p style=\"margin: 0 0 6px; font-size: clamp(14px, 1.7vw + 8px, 17px);\"><strong style=\"color: #064e3b;\">Q: My worm gear reducer is showing oil colour darkening \u2014 does that mean replacement is overdue?<\/strong><\/p>\n<p style=\"margin: 0; font-size: clamp(14px, 1.6vw + 8px, 16px); line-height: 1.65; color: #1f2937;\">A: Probably yes for mineral CLP; not necessarily for PAG. Mineral oil darkens visibly as additive package depletes \u2014 going from golden to brown to black across service life. PAG&#8217;s colour change is subtler; service-life monitoring relies on viscosity testing and oil-analysis programs rather than visual inspection. For mineral installations, dark brown colour signals replacement within 200-500 hours. For PAG, send a sample for laboratory analysis (TAN, viscosity, water content) rather than relying on colour. Browse our <a style=\"color: #d97706; text-decoration: underline; font-weight: 600;\" href=\"https:\/\/wormreducers.xyz\/fr\/product-category\/worm-gear-reducer\/\">Catalogue de r\u00e9ducteurs \u00e0 vis sans fin<\/a> for sized frames with documented lubricant fill and service interval recommendations.<\/p>\n<\/div>\n<\/div>\n<div style=\"background: linear-gradient(135deg, #064e3b 0%, #065f46 100%); color: #ffffff; padding: clamp(28px, 4vw, 48px); border-radius: 8px; margin: 36px 0 24px; text-align: center;\">\n<h2 style=\"color: #ffffff; border: none; padding: 0; margin: 0 0 14px; font-size: clamp(20px, 2.6vw + 8px, 28px); font-weight: bold; line-height: 1.3;\">Need a Lubricant-Specified Worm Gear Reducer Quote?<\/h2>\n<p style=\"color: rgba(255,255,255,0.92); font-size: clamp(14px, 1.5vw + 8px, 17px); line-height: 1.6; margin: 0 auto 22px; max-width: 720px;\">Send the application \u2014 power, hours per day, ambient, food-grade requirement. Our Korean engineering team returns a worm gear reducer recommendation with PAG or mineral CLP factory fill, service interval projection and 5-year cost analysis within 24-48 hours.<\/p>\n<p><a style=\"display: inline-block; padding: 14px 36px; background: #d97706; color: #ffffff; font-weight: bold; text-decoration: none; border-radius: 4px; font-size: clamp(15px, 1.4vw + 6px, 17px); box-shadow: 0 4px 12px rgba(0,0,0,0.18);\" href=\"https:\/\/wormreducers.xyz\/fr\/contact-us\/\">Submit Lubricant Specification \u2192<\/a><\/p>\n<\/div>\n<p style=\"font-size: clamp(13px, 1.4vw + 6px, 14px); color: #6b7280; text-align: right; margin: 24px 0 0; font-style: italic;\">\u00c9diteur : Cxm<\/p>","protected":false},"excerpt":{"rendered":"<p>Worm Gear Reducer Lubricant: Synthetic PAG vs Mineral CLP A side-by-side engineering comparison of synthetic polyalkylene glycol and mineral CLP gear oils \u2014 chemistry, properties, service-life economics, application matrix, switching rules, and the most common selection mistakes. Get a Lubricant-Specified Quote \u2192 Lubricant choice changes worm gear reducer service life by a factor of 1.5-2\u00d7 [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1337],"tags":[],"class_list":["post-1542","post","type-post","status-publish","format-standard","hentry","category-worm-gear-reducer"],"_links":{"self":[{"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/posts\/1542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/comments?post=1542"}],"version-history":[{"count":2,"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/posts\/1542\/revisions"}],"predecessor-version":[{"id":1544,"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/posts\/1542\/revisions\/1544"}],"wp:attachment":[{"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/media?parent=1542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/categories?post=1542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wormreducers.xyz\/fr\/wp-json\/wp\/v2\/tags?post=1542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}