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

The bearings are separable. This implies the bearing parts can be fitted independently of every other. The bearings are provided without seals. They are often lubricated with grease or essential oil from the side.

The rollers are processed to create pore-like micro indents in the top of steel (rolling contact surface and roller brain). This microstructure helps preserve an oil film that is well suited for tapered roller bearing applications. Improved essential oil film retention drastically inhibits surface damage, reaching more than eight situations higher durability and equal or higher seizure resistance in comparison to conventional products.
Tapered Roller Bearing china Increased lubricant oil accumulation and retention (better to form oil film) in the roller surface contributes to 10% lower friction for low speeds in comparison to conventional products.
Tapered roller bearings can accept huge radial and axial loads. Axial loads happen to be absorbed in mere one direction. For axial counter support a second bearing installed inverse is required. Suitable for medium speeds.

Higher efficiency transmission systems are seen as key to increasing fuel economy, so NSK attempt to develop a substantial reliability bearing capable of overcoming these hurdles.

To improve fuel economy, there’s been a change to using less lubricant and/or reduced viscosity lubricant in tranny systems. Consequently, tapered roller bearings in transmissions are being subject to increasingly severe lubrication circumstances, increasing the risk of lubrication oil film depletion (lean lubrication conditions), surface harm, and bearing seizure.