marine crane bearing To prevent the holder noise measures are as follows

A. cage revolution motion stability, should as far as possible by the ring guide way and pay attention to guide the full lubrication, give the improvement of bearing structure of high speed conditions, the L type roller guide holder is changed to Z type crossed roller bearings‍ ring rib guide holder.

B. bearings rotate at high speed, marine crane ‍bearing pocket clearance of 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 reduce the radial clearance.

D. try to improve manufacturing precision frame maintain, improve the surface quality of the holder, helps to reduce body roll and keep the noise frame collision or friction.

E. actively adopt Taper roller bearings‍ advanced cleaning technology, cleaning effective parts and the set of products, improving the cleanliness of bearing.

5 by rolling vibration

When the operation of the bearing under a radial load, its internal only a plurality of rolling load, due to the ferrule elastic contact constitute the "spring" supporting the rolling body in the radial load line generates periodic oscillation, and the shaft center will therefore vertically moving or moving horizontally, and causes noise. This kind of vibration is called rolling through the vibration, especially in low speed when the more obvious.

And the amplitude is related Flange Slewing Bearing‍ to bearing type, radial load, radial clearance and ball number. Usually the smaller amplitude, if the amplitude is large when the harm, this is often the minish preload appropriate axial clearance or to reduce.