The main dimensions of the tapered roller bearings conform to 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 means the bearing parts could be fitted independently of each various other. The bearings are supplied without seals. They might 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 area and roller brain). This microstructure helps retain an oil film that’s perfect for tapered roller bearing applications. Improved essential oil film retention considerably inhibits surface damage, obtaining more than eight instances higher sturdiness and equal or greater seizure resistance in comparison to conventional products.
Increased lubricant oil accumulation and retention (easier to form oil film) in the roller surface plays a part in 10% lower friction at low speeds compared to conventional products.
Tapered roller bearings can accept high radial and axial loads. Axial loads happen to be absorbed in mere one path. For axial counter support a second bearing attached inverse is required. Suitable for medium speeds.

Higher efficiency transmission systems are seen as key to improving gas economy, so NSK set out to develop a huge reliability bearing capable of overcoming these hurdles.

To boost fuel economy, there’s been a shift to using less lubricant and/or reduce viscosity lubricant in transmission systems. Subsequently, tapered roller bearings in transmissions happen to be being subject to increasingly severe lubrication circumstances, increasing the risk of lubrication essential oil film depletion (lean lubrication circumstances), surface harm, and bearing seizure.