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72212/72487 Inch Single Row Tapered Roller Bearings
Dimensions: Bore (Inner) Diameter: 2.1250 "; Outer Diameter: 4.8750 "; Width (Thickness): 1.4375 ";

72212/72487
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Product Attributes
Product Number72212/72487
Bore diameter2.1250 "
Outside diameter4.8750 "
Total width1.4375 "
Shoulder diameter of inner ring3.5118 "
Widthof inner ring1.2910 "
Width of outer ring1.0000 "
Chamfer minimum dimension of inner ring (r1,2)3.5 mm
Chamfer minimum dimension of outer ring (r3,4)3.3
Distance side face to pressure point (a)36
Basic dynamic load rating (Cr)174
Basic static load rating (Cor)160
Fatigue load limit (Pu)19.6
Reference speed4300 r/min
Limiting speed5600 r/min
Mass2 kg
Limiting value (e)0.75
Axial load factor (Y)0.8
Axial load factor (Y0)0.45
Maximum diameter of shaft abutment (da)67 mm
Minimum diameter of shaft abutment (db)68 mm
Minimum diameter of housing abutment (Da)93 mm
Maximum diameter of housing abutment (Da)112 mm
Minimum diameter of housing abutment (Db)114 mm
Minimum width of space required in housing on large side face (C4 mm
Minimum width of space required in housing on small side face (C11 mm
Maximum Radius of shaft fillet (ra)3.5 mm
Maximum Radius of housing fillet (rb)3.3 mm
72212/72487
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