What are the characteristics of tapered roller bearing two row?

2,466 Published by May 15,2020

High carrying capacity
Due to its second row of rollers, tapered roller bearing two row is suitable for larger radial and axial loads. The axial load capacity of tapered roller bearing two row increases with the increase of contact angle α. The size of the contact angle is usually between 10 ° and 30 °. The size of the angle is related to the calculation factor e (→ product table): The larger the value of e, the greater the contact angle.
Bidirectional axial load
tapered roller bearing two row positions the shaft in two directions, with specific axial clearance or preload.

High stiffness;
tapered roller bearing two row provides a rigid bearing configuration.
Low friction
The optimized roller design on the rib and the surface finish of the rib (Figure 3) can promote the formation of a lubricant film, thereby reducing friction. This also reduces the heat generated by friction and flange wear. In addition, the bearing can better maintain the preload and reduce the noise level during operation.

long lasting
The basic design of the tapered roller bearing two row bearings and the convex raceway logarithmic raceway shape optimize the load distribution along the contact surface, reduce the peak stress at the roller end (Figure 4), and reduce the misalignment and deflection The sensitivity has a regular straight line (Figure 5).

tapered roller bearing two row datasheet

Improve operational reliability
The optimized surface treatment of the roller and raceway contact surface is conducive to the formation of hydrodynamic lubricant film.
Consistency of roller profile and dimensions
The manufacturing tolerances and dimensional accuracy of the rollers integrated in the tapered roller bearing two row are so precise that they are almost identical. This provides the best load distribution to reduce noise and vibration levels, and enables more accurate preloading.

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