Q: What are the factors that affect the rotational flexibility of tapered roller bearings?
A: The main factors that affect the rotational flexibility of tapered roller bearings are:
1）The shrinkage of the cage is too large, resulting in too small a gap between the cage window and the roller;
2）The effective contact length is insufficient due to the angle difference of the surfaces of each part;
3）After the cage is stamped, there are burrs on the window, and the sharp edges are not completely removed;
4）The cage is deformed or elliptical;
5）There is oil or dirt in the bearing. There is residual anti-rust oil on the surface of each part, and the viscosity of the anti-rust oil causes inflexible rotation. There are burrs or dirt on the edges of the oil grooves at the inner sleeve and the large rib, and the crystals of the anti-rust liquid are not cleaned up;
6）There is a serious concave phenomenon on the surface of the inner and outer ring raceways (can be tested by linear roller surface scraping method or linear sample).
