Gear oils
Gearbox oil is essential to unlocking the range of performance your vehicle needs. Discover Castrol's gear oils from standard mineral to synthetic oils.
Gear oils
Industrial gearbox oil plays a pivotal role in sustaining the optimal performance of various machinery. Castrol offers a diverse range of gearbox oils and transmission fluids. This includes options for industrial gearbox oil, meeting every need from standard mineral-based to advanced synthetic formulations.
Understanding gear oil
Gear oil is a specialised lubricant that safeguards transmissions, transfer cases, and differentials across various industries, including automotive, aerospace, mining, and more. It typically possesses high viscosity and incorporates additives to withstand pressure and reduce wear.
When to change gear oil
Gearboxes and transmission systems constantly endure heat, wear, and friction. As fluids leak or degrade, they trigger gear grinding or slipping, indicating an imperative need for a prompt gear oil change.
Transmission oil vs. gear oil
As a general guideline, manual gearboxes utilise gear oil, while automatic transmissions employ transmission fluid. The distinction arises from their functions and designs. Gear oils possess higher viscosity, providing superior heat endurance in manual gearboxes. In contrast, transmission fluids are thinner and contain added detergents, catering to the intricate mechanisms of automatic transmissions.
FAQs
Q: Can I use transmission fluid in an industrial gearbox?
- A: Occasionally. Some industrial gearboxes may accept transmission fluids. Always consult your Owner's Manual for the recommended fluid for your specific system.
Q: Can gear oil be utilised in an automatic transmission?
- A: No. Gear oil's higher viscosity makes it unsuitable for automatic transmissions, potentially causing clogging in its components.
Q: Is there a universal rule for changing industrial gear oil?
- A: No. The frequency of change depends on application and usage rates.
Q: What are the signs indicating the need for a gear oil change?
- A: Detectable grinding or slipping sensations within the gearbox signal a necessary oil change.
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Gear Oils
| Product | Base oil | Viscosity at 40 ° C | V.I | Pour - pt. ( ° C ) |
Application | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alpha BMB 680 | Mineral oil | 680 | 94 | -6 | Gear oils with solid lubricants suitable for bearings & gears with high loads. Compliant with DIN 51 517 Part 3 Type CLPF. | ||||||||||||||||||
| Alpha SMR NB | 800 | >95 | 6 | Suitable for the lubrication of sugar mill crusher & mill roll bearings. Applied by means of mechanical force - feed lubricators. Also used for slush pan lubrication of open gears and in centralized lubrication systems for slow speed spur gears. | |||||||||||||||||||
| Alpha SMR NB Heavy |
950 | >95 | 6 | ||||||||||||||||||||
| Alpha SP 68 | 68 | 102 | -21 | Heavy metal - free gear oil suitable for use in gears with medium and high load-carrying capacity as well as bearings & hydraulic systems. Compliant with DIN 51 517 Part 3 - CLP DIN 51 524 Part HLP and SEB 181 226. | |||||||||||||||||||
| Alpha SP 100 | 100 | 97 | -21 | Heavy metal - free gear oil suitable for bearings, gears with medium & high load carrying capacity, and in circulating systems. Compliant with DIN 51 517 Part 3 - CLP , DIN 51 524 Part 2 - HLP, Flender BA 7300, and SEB 181 226. | |||||||||||||||||||
| Alpha SP 150 | 150 | 97 | -21 | ||||||||||||||||||||
| Alpha SP 220 | 220 | 97 | -21 | ||||||||||||||||||||
| Alpha SP 320 | 320 | 96 | -21 | ||||||||||||||||||||
| Alpha SP 460 | 460 | 96 | -6 | ||||||||||||||||||||
| Alpha SP 680 | 680 | 90 | -6 | ||||||||||||||||||||
| Alphasyn EP 220 | PAO | 220 | 140 | -42 | Gear oils suitable for use in closed gears which are exposed to shock loads. Compliant with: DIN 51 517 Part 3, AGMA 9005 - D94, U.S.Steel 224, David Brown Type E, Hansen Transmissions, Flender and Lohmann & Stolterfoht. | ||||||||||||||||||
| Alphasyn EP 320 | 320 | 140 | -36 | ||||||||||||||||||||
| Alphasyn PG 220 | PG | 220 | 235 | -39 | PAG ( Polyglycol ) based synthetic gear oils suitable for lubricating gears under high mechanical & thermal loads. Operating temp. range: briefly up to + 180 ° C. Compliant with DIN 51 517 Part 3 - CLP. | ||||||||||||||||||
| Alphasyn T 220 | PAO | 220 | 140 | -45 | Gear and hydraulic oils free of heavy metals used for gears, central lubrications and hydraulics subjected to high thermal loads. Fulfils 51 517 Part 3 - CLP requirement. | ||||||||||||||||||
| Premium gear oils | |||||||||||||||||||||||
| Optigear 1100/680 | Mineral oil | 680 | 86 | -18 | Gear oils to lubricate spur gears, bevel gears, planetary gears and gear couplings as well as sliding & rolling surfaces of bearings. | ||||||||||||||||||
| Optigear 1100/1000 | 1000 | 80 | -18 | ||||||||||||||||||||
| Optigear 1100/1500 | 1500 | 84 | -15 | ||||||||||||||||||||
| Optigear BM 68 | 68 | 103 | -24 | Gear oils for long-term lubrication under extreme conditions. For use in spur gears, bevel gears, worm gears, cams, control shafts and planetary gears, actuators, closed gear coupling and all types of bearings (roller bearings, disk cylinders, full complement cylindrical roller bearings and thrust bearings). | |||||||||||||||||||
| Optigear BM 100 | 100 | 100 | -21 | ||||||||||||||||||||
| Optigear BM 150 | 150 | 98 | -18 | ||||||||||||||||||||
| Optigear BM 220 | 220 | 92 | -15 | ||||||||||||||||||||
| Optigear BM 320 | 320 | 92 | -15 | ||||||||||||||||||||
| Optigear BM 460 | 460 | 92 | -12 | ||||||||||||||||||||
| Optigear Synthetic X 220 | PAO | 220 | 179 | -45 | Fully synthetic gear oils for use in spur gears, bevel gears and planetary gears and high loads such as in wind energy. | ||||||||||||||||||
| Optigear Synthetic X 320 | 320 | 152 | -33 | ||||||||||||||||||||
| Optigear Synthetic X 460 | 460 | 153 | -27 | ||||||||||||||||||||
| Optigear EP 220 | Mineral Oil | 220 | 95 | -15 | High-performance gear oil for long-term lubrication even under difficult mechanical conditions. Suitable for spur gears and bevel gears xposed to shock loads, ball bearing lubrication, gear couplings and drive units of rail-based vehicles.Compliant with DIN 51 517 Part 3, CLP gear oils & API GL-5. | ||||||||||||||||||
| Optigear EP 320 | 320 | 95 | -9 | ||||||||||||||||||||
| Optigear RMO | 150 | 133 | -51 | High-performance long-term gear oil for spur gears, bevel gears and ball bearings. | |||||||||||||||||||
| Optigear Synthetic 800/100 | PG | 100 | 205 | -42 | Synthetic gear oils to lubricate ball bearings & slide bearings in spur gears, bevel gears and in worm gears of slide bearings and ball bearings, PVC calendering lines, kneaders, conveyor systems, steel mills and grinders. | ||||||||||||||||||
| Optigear Synthetic 800/150 | 150 | 210 | -36 | ||||||||||||||||||||
| Optigear Synthetic 800/220 | 220 | 215 | -33 | ||||||||||||||||||||
| Optigear Synthetic 800/320 | 320 | 230 | -30 | ||||||||||||||||||||
| Optigear Synthetic 800/460 | 460 | 240 | -30 | ||||||||||||||||||||
| Optigear Synthetic 800/680 | 680 | 260 | -27 | ||||||||||||||||||||
| Optigear Synthetic 800/1000 | 1000 | 275 | -24 | ||||||||||||||||||||
| Optigear Synthetic PD 220 ES | PAO | 220 | 172 | -48 | Synthetic high-performance gear oils with special PD additives (plastic deformation).For use in spur gears, bevel gears and planetary gears & heavy-duty gears.It prevents formation of micro-pitting and has positive effect on the contact pattern of gears. | ||||||||||||||||||
| Optigear Synthetic A 320 | 320 | 140 | -36 | Fully synthetic gear oils for industrial gears operating under high loads eg wind turbines, conveyor belts, crane gears, elevators, steel mills, heavy-duty cams, gear couplings, chain drives, drives, slide bearings, ball bearings and transport systems during winter operation. | |||||||||||||||||||
| Optigear Synthetic CT 320 | 335 | 172 | -49 | Wind turbine gearbox, all types of enclosed gears including heavy and shock-loaded gears and bearings where EP properties are required. | |||||||||||||||||||
| Optigear Synthetic RO 150 | 140-160 | 130 | -36 | Spur gear teeth, bevel gear unit, all types of roller bearings. Can be used in a broad range of temperatures. | |||||||||||||||||||
| Optigear Synthetic ALR 150 | 150 | 148 | -45 | Designed for use in robot gear box systems, to extend oil change intervals for lower downtime and increased maintenance intervals. | |||||||||||||||||||
