Damage status: rolling wheel, roller and cage in the rotating heat until discolored sharply, softening, deposition and damaged.
Too much load (
Preloading is too big)
Speed is too large.
Clearance is too small.
Water intrusion, foreign body.
Axis, the precision of the bearing housing and shaft deflection.
The lubricant and lubricating method.
The choice of correct bearing.
Research, bearing clearance and preloading.
Improve the sealing device.
Check the shaft and the precision of the bearing housing.
Improve the installation method.