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NSAR, a professional UCF 211 supplier in China, provides a broad variety of cast iron pillow block ball bearings with best customer service and quality assured.
With more than 10 years UCF 211 pillow block ball bearing manufacture experience, our UCF 211 has been exported to Europe, Portugal, Spain, South America, Oceania, South Africa and other countries and regions.NSAR can satisfy your bulk UCF 211 pillow block ball bearings customization needs.
Main Faults found during periodic inspection and their causes
Faults and Causes
Excessive torque
(1) Degraded grease
(2) Interference of seal with
slinger due to excessive supply of grease
(3) Deformation of slinger causing interference with seal
(4) High load due to shaft expansion.
Abnormal noise,abnormal vibration
(1)Improper tightening of set screws or of mounting bolts
(2)Wear on inner ring of bearing or shaft due to creep or fretting
(3)Ingress of foreign matter dirt into bearing
(4)Damage to cage or ball rolling surfaces due to rolling fatigue
(5)Dent on raceway surface or ball rolling surface becarse of excessive load
(6)Warped or bent shaft.
Abnormal temperature increase
(1)Degraded grease
(2)Interference of seal with slinger due to excessive
supply of grease
(3)Deformation of slinger carsing interference with seal
(4)Looseness of setscrew,eccentric locking ring or adapter lock nut for tapered i.d.bearings
(5)Load due to shaft expansion
(6)Damage to cage or ball rolling surfaces due to rolling fatigue.
