d:  D: B:  
Bearing No.Internal DiameterOutside DiameterWidthCatalogue
WR1938144DD 143.48 38.1 18.961 WR Series
WR1938144DD-1 143.48 38.1 18.961 WR Series
WR1938149D 148.59 38.1 18.961 WR Series
*25880/25820/Q 36,487 73,025 23,812 Single Row Inch Size
K48X54X19 48 54 19 K Series
K48X54X25 48 54 25 K Series
RNA4908 48 62 22 RNA49 Series
RNA6908 48 62 40 RNA69 Series
RNA4908-2RS 48 62 22 RNA49...2RS Series
RNA4908-RS 48 62 22 RNA 49...RS Series
351996 480 650 78 Double Row Series
381096 480 700 420 Four Row Series
77196 480 700 420 Four Row Series
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