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

The bearings are separable. This means the bearing parts could be fitted independently of every different. The bearings are provided 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 top of steel (rolling contact area and roller head). This microstructure helps preserve an oil film that’s perfect for tapered roller bearing applications. Improved essential oil film retention significantly inhibits surface damage, achieving more than eight instances higher strength and equal or higher seizure resistance in comparison to conventional products.
Superior 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 huge radial and axial loads. Axial loads happen to be absorbed in only one direction. For axial counter support a second bearing installed inverse is required. Suitable for medium speeds.

Bigger efficiency transmission systems have emerged as key to improving fuel economy, so NSK attempt to develop a large Tapered Roller Bearing china reliability bearing capable of overcoming these hurdles.

To boost fuel economy, there’s been a shift to using less lubricant and/or reduced viscosity lubricant in tranny systems. As a result, tapered roller bearings in transmissions are being subject to increasingly severe lubrication circumstances, increasing the chance of lubrication essential oil film depletion (lean lubrication circumstances), surface damage, and bearing seizure.