What is the standard of hardness for tapered roller bearings?
3) when the rotation accuracy requirements are high, the fit should be tighter (less clearance);4) often removable bearings or floating rings should take loose coordination;5) the bearings fitted with the hollow shaft should be tightened tight.
Selection principle of matching of rolling bearings:1) the rotating ring is looser than the non moving coil;2) high speed, heavy load, impact, vibration, should be more tight, and when the load is smooth, the coordination should be loose;
Taper roller hardness standard is in accordance with "JB1255/2001" to carry out, because the line mark is relatively wide, so each company has its own standards.
