The main dimensions 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 so are well suited for most applications.
The bearings are separable. This implies the bearing parts can be fitted independently of each other. The bearings are provided without seals. They can be lubricated with grease or oil from the side.
The rollers are processed to create pore-like micro indents in the top of steel (rolling contact surface area and roller head). This microstructure helps retain an oil film that’s well suited for tapered roller bearing applications. Improved oil film retention considerably inhibits surface damage, achieving more than eight situations higher strength and equal or increased seizure resistance in comparison to conventional products.
Improved lubricant oil accumulation and retention (better to form oil film) in the roller surface plays a part in 10% lower friction for low speeds compared to conventional products.
Tapered roller bearings may accept excessive radial and axial loads. Axial loads Tapered Roller Bearing china happen to be absorbed in mere one route. For axial counter support another bearing mounted inverse is required. Ideal for medium speeds.
Higher efficiency transmission systems are seen as key to bettering fuel economy, so NSK set out to develop a large reliability bearing capable of overcoming these hurdles.
To improve fuel economy, there’s been a shift to using less lubricant and/or reduce viscosity lubricant in transmission systems. As a result, tapered roller bearings in transmissions happen to be being subject to increasingly severe lubrication conditions, increasing the chance of lubrication oil film depletion (lean lubrication circumstances), surface harm, and bearing seizure.