Tapered Roller Bearing

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 well suited for most applications.

The bearings are separable. This means the bearing parts can be fitted independently of every additional. The bearings are provided without seals. They may 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 brain). This microstructure helps preserve an oil film that’s well suited for tapered roller bearing applications. Improved essential oil film retention considerably inhibits surface damage, achieving more than eight situations higher strength and equal or greater seizure resistance in comparison to conventional products.
Improved upon lubricant oil accumulation and retention (easier 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 substantial radial and axial loads. Axial loads are absorbed in only one way. For axial counter support another bearing mounted inverse is required. Ideal for medium speeds.

Bigger efficiency transmission systems are seen as key to bettering petrol economy, so NSK set out to develop a substantial reliability bearing with the capacity of overcoming these hurdles.

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


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