Four-point contact ball bearing
Description
The standard series of IMCB four point contact ball bearings
includes:
QJ 2 and QJ 3 series bearings
Some sizes of bearings in the QJ 10 and QJ 12 series
IMCB Explorer bearings
IMCB Explorer bearings can withstand higher loads and extend their service life.
Bearings with positioning slots
Four point contact ball bearings can be equipped with two positioning slots on the outer ring (model suffix N2, 
):
Prevent bearing rotation
Distributed 180 ° apart
The size and tolerance of the positioning groove comply with ISO 20515 standard, and the specific values are shown in Table 1.
Holder
The IMCB four point contact ball bearing is equipped with one of the retainers shown in Table 2.
