GRo-90
Gear oil is a fluid lubricant used in gears (gearboxes for reduction of friction and wear of the gear tooth surfaces, removal of the heat generated by the operating gear and corrosion protection of the gear parts.
Gear (gearbox) is a mechanical assembly transmitting energy of rotational motion and changing its parameters (torque, speed, direction) by means of toothed wheels and cylinders.
The principal gear types are as follows:
Spur gear; Helical gear; Herringbone gear; Bevel gear; Worm gear; Hypoid gear; Annular gear.
Gear oils should provide reliable, efficient (low friction), low maintenance operation of gears at different speeds, temperatures, oil contaminations.
Mineral based multigarade gear oil | ||
Property | Value in metric unit | Value in US unit |
Density at 60°F (15.6°C) | 0.887 *103 kg/m3 | 55.4 lb/ft3 |
Kinematic viscosity at 104°F (40°C) | 139.0 cSt | 139.0 cSt |
Kinematic viscosity at 212°F (100°C) | 15 cSt | 15 cSt |
Viscosity index | 110 | 110 |
Brookfield viscosity at -14.8 °F (-26°C) | 136000 cP | 136000 cP |
Flash point | 218 ºC | 424 ºF |
Pour Point | -27 ºC | -16.6 ºF |
Channel Point | max.-35 ºC | max.-31 ºF |
Color | 2.5 | 2.5 |