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387 A/382 S Inch Single Row Tapered Roller Bearings
Dimensions: Bore (Inner) Diameter: 2.2500 "; Outer Diameter: 3.8125 "; Width (Thickness): 1.0000 ";

387 A/382 S
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Product Attributes
Product Number387 A/382 S
Bore diameter2.2500 "
Outside diameter3.8125 "
Total width1.0000 "
Shoulder diameter of inner ring2.9213 "
Widthof inner ring0.8640 "
Width of outer ring0.7982 "
Chamfer minimum dimension of inner ring (r1,2)3.5 mm
Chamfer minimum dimension of outer ring (r3,4)2.3
Distance side face to pressure point (a)21
Basic dynamic load rating (Cr)99.9
Basic static load rating (Cor)102
Fatigue load limit (Pu)11.6
Reference speed5600 r/min
Limiting speed6700 r/min
Mass0.65 kg
Limiting value (e)0.35
Axial load factor (Y)1.7
Axial load factor (Y0)0.9
Maximum diameter of shaft abutment (da)65 mm
Minimum diameter of shaft abutment (db)70 mm
Minimum diameter of housing abutment (Da)85 mm
Maximum diameter of housing abutment (Da)87 mm
Minimum diameter of housing abutment (Db)91 mm
Minimum width of space required in housing on large side face (C3 mm
Minimum width of space required in housing on small side face (C5 mm
Maximum Radius of shaft fillet (ra)3.5 mm
Maximum Radius of housing fillet (rb)2.3 mm
387 A/382 S
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