Transcription of MRC Bearing Solutions for Pumps - SKF.com
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MRCB earingSolutionsfor PumpsMRC Bearing ServicesSelection of the Proper Bearing Solution ..1 Relative Bearing Performance Characteristics ..2 Why a Preload or Clearance? ..4 Handling and Maintenance ..5 Operating Viscosity Chart ..6 Bearing Reliability in Centrifugal Pumps The MRC Pump School ..7200S and 300S series single-row deep groove ball bearings (non-filling slot) ..85200C and 5300C series 30 double-row angular contact ball bearings ..145300 UPG series 40 double-row angular contact ball bearings ..207200DU and 7300DU series 29 angular contact ball bearings ..247200 PDU and 7300 PDU series 40 angular contact ball bearings with land-guided, machined bronze cage ..307200 PJDE and 7300 PJDE series 40 angular contact ball bearings with ball -centered cage and CB clearance ..347200 PJDU and 7300 PJDU series 40 angular contact ball bearings with ball -centered cage and GA preload.
5 Contamination A high percentage of ball and roller bearing problems can be attributed to foreign matter entering the system. Because bearings are
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