The following aspects can be considered:
Viscosity index: The viscosity index of reducer gear oil is one of its important physical properties. Usually, a high quality gear oil has a more stable viscosity index, which means that it has less change in viscosity at different temperatures.
Viscosity Grade: The viscosity grade of a gear oil is usually expressed through the SAE (Society of Automotive Engineers) viscosity grade system. Higher viscosity grades are usually suitable for high temperature and high load conditions, while lower viscosity grades are suitable for low temperature environments. Selection of the correct viscosity grade depends on the environment in which it is to be used.
Antioxidant performance: A good gear oil for reduction gears should have good antioxidant performance, be able to maintain its chemical properties for a long time, and not easy to oxidize and deteriorate.
Anti-wear properties: gear oils should have good anti-wear properties, which can reduce the wear of gears and bearings and extend the service life of the machine.
Anti-corrosion and anti-rust properties: gear oils should have good anti-corrosion and anti-rust properties to protect metal surfaces from corrosion and oxidation.
Water separation: a good gear oil should have good water separation properties, can effectively separate water to prevent water on the lubricating performance.
Cost-effectiveness: In addition to the above properties, the cost-effectiveness of the gear oil needs to be considered. High-quality gear oils may be more expensive, but in the long run, their performance and service life may be higher, providing better protection for equipment and reducing maintenance costs and downtime.