d:  D: B:  
Bearing No.Internal DiameterOutside DiameterWidthCatalogue
WR1938133D 133.3 38.1 18.961 WR Series
1658 33.3 65.1 17.5 1600 Series
M88048/M88010 33.338 68.262 22.225 Single Row Trapered Roller Bearing In English System
639337A 33.338 76.2 28.575 Single Row Trapered Roller Bearing In English System
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