Tapered Roller Bearing

The main sizes of the tapered roller bearings conform to DIN ISO 355 and DIN 720. Dimensional and running tolerances match tolerance category PN acc. to DIN 620. These tolerance classes are standard and are well suited for most applications.

The bearings are separable. This means the bearing parts could be fitted independently of each different. The bearings are provided 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 surface area and roller mind). This microstructure helps keep an oil film that is well suited for tapered roller bearing applications. Improved essential oil film retention significantly inhibits surface damage, reaching more than eight instances higher durability and equal or increased seizure resistance compared to conventional products.
Improved lubricant oil accumulation and retention (simpler to form oil film) in the roller surface contributes to 10% lower friction by low speeds in comparison to conventional products.
Tapered roller bearings may accept substantial radial and axial loads. Axial loads will be absorbed in mere one route. For axial counter support a second bearing mounted inverse is required. Ideal for medium speeds.

Larger efficiency transmission systems have emerged as key to enhancing gasoline economy, so NSK attempt to develop a large reliability bearing with the capacity of overcoming these hurdles.

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