The main measurements of the tapered roller bearings comply with DIN ISO 355 and DIN 720. Dimensional and running tolerances correspond to tolerance category PN acc. to DIN 620. These tolerance classes are standard and are perfect for most applications.

The bearings are separable. This implies the bearing parts could be fitted independently of each various other. The bearings are supplied without seals. They can be lubricated with grease or essential oil from the side.

The rollers are processed to create pore-like micro indents in the surface of the steel (rolling contact surface and roller mind). This microstructure helps keep an oil film that’s perfect for tapered roller bearing applications. Improved essential oil film retention considerably inhibits surface damage, attaining more than eight moments higher strength and equal or higher seizure resistance compared to conventional Tapered Roller Bearing china products.
Much better lubricant oil accumulation and retention (better to form oil film) in the roller surface plays a part in 10% lower friction in low speeds in comparison to conventional products.
Tapered roller bearings can accept high radial and axial loads. Axial loads are absorbed in mere one way. For axial counter support another bearing installed inverse is required. Suitable for medium speeds.

Bigger efficiency transmission systems are seen as key to improving gas economy, so NSK attempt to develop a high reliability bearing capable of overcoming these hurdles.

To improve fuel economy, there has been a change to using less lubricant and/or lower viscosity lubricant in tranny systems. Therefore, tapered roller bearings in transmissions will be being at the mercy of increasingly severe lubrication circumstances, increasing the risk of lubrication essential oil film depletion (lean lubrication circumstances), surface destruction, and bearing seizure.