We can provide free samples . Please contact Email for any inquiries

To prevent the holder noise measures are as follows:
A. cage revolution motion stability, should as far brg nu 217 dimension as possible by the ring guide way and pay attention to guide the full lubrication, give the improvement of tapered roller bearing structure of high speed conditions, the L type roller guide holder is changed to Z type ring rib guide holder.
B. bearings rotate at high speed, bearing pocket clearance of brg nu 217 dimension the cage vibration amplitude is much larger than the pocket hole cage vibration amplitude gap is small, so the pocket clearance value is very important.
C. should pay attention to brg nu 217 dimension reduce the radial clearance.
D. try to improve retention value manufacturing accuracy, improve the surface quality of the holder, helps to reduce body roll and keep the noise frame collision or friction.

E. actively adopt advanced cleaning technology, cleaning effective parts and the set of products, improving the cleanliness of bearing.
Selection and control 1, shaft and bearing chamber tolerance: press bearing should be flexible rotation not block a sense of brg nu 217 dimension. If there is obviously the rotation is not flexible, indicates that the axial size is too large, the tolerance to cut. As the tapered roller bearing onto the shaft by hand after rotation has obvious "rustle" sense, the tolerances of the shaft may be too large or the roundness of the shaft is not good. So brg nu 217 dimension in the control of the shaft and housing tolerances to control the roundness, many domestic manufacturers only on tolerance control, no control of roundness.
2, the bearing assembly: because the bearings are precision products, such as improper assembly is easy to brg nu 217 dimension tapered roller bearing raceway caused damage, cause damage to the bearing. Bearing assembly shall have the special mould, can not be beat, after pressing shaft when only small force, force pressure when only circle circle. The assembly by pneumatic or hydraulic press, in the upper and lower touch to outside in the horizontal state, if tilt will cause the bearing channel due to the stress damage, and the bearing guide ring.