31308 single row Tapered roller bearings
31308 single row Tapered roller bearings detail Specifications:
Material : 52100 Chrome Steel
Construction : Single row
Metric series
Limiting speeds : 7500 rpm
Weight : 0.72 kg
Main Dimensions:
Bore diameter (d) : 40 mm
Outer diameter (D) : 90 mm
Width of inner ring (B) : 23 mm
Width of outer ring (C) : 17 mm
Total width (T) : 25.25 mm
Chamfer dimension of inner ring (r ) min. : 2.0 mm
Chamfer dimension of outer ring ( r) min. : 1.5 mm
Dynamic load ratings (Cr) : 72.45 KN
Static load ratings (Cor) : 81.18 KN
ABUTMENT DIMENSIONS
Diameter of shaft abutment (da) max. : 51 mm
Diameter of shaft abutment (db) min. : 50 mm
Diameter of housing abutment (Da) min. : 71 mm
Diameter of housing abutment (Da) max. : 82.5 mm
Diameter of housing abutment (Db) min. : 86 mm
Minimum width of space required in housing on large side face (Ca) min. : 3 mm
Minimum width of space required in housing on small side face (Cb) min. : 8 mm
Radius of shaft fillet (ra) max. : 2.0 mm
Radius of housing fillet(rb) max. : 1.5 mm