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Description
Brand - TIMKEN
Item Number - 3981/3920 TIMKEN
Also Known As - 3981 - 3920
Category - Single Row Tapered Roller Bearing (TS Type)
Bore Diameter (d) mm - 58.737
Bore Diameter (d) inch - 2.3125
Outer Diameter (D) mm - 112.712
Outer Diameter (D) inch - 4.4375
Width (T) mm - 30.162
Width (T) inch - 1.1875
Dynamic Load Rating (C1) N - 139000
Dynamic Load Rating (C1) lbf - 31200
Factor (e) - 0.4
Factor (Y) - 1.49
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) N - 36000
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) lbf - 8090
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) N - 24800
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) lbf - 5570
Ratio of Basic Dynamic Radial Load Rating to Basic Dynamic Thrust Rating (K) - 1.45
Basic Static Radial Load Rating (C0) N - 191000
Basic Static Radial Load Rating (C0) lbf - 43000
Cone Width (B) mm - 30.048
Cone Width (B) inch - 1.183
Cup Width (C) mm - 23.812
Cup Width (C) inch - 0.9375
Effective Center Location (a) mm - -4.6
Effective Center Location (a) inch - -0.18
Maximum Shaft Fillet Radius (R) mm - 3.5
Maximum Shaft Fillet Radius (R) inch - 0.14
Cone Frontface Backing Diameter (da) mm - 67
Cone Frontface Backing Diameter (da) inch - 2.64
Cone Backface Backing Diameter (db) mm - 73
Cone Backface Backing Diameter (db) inch - 2.87
Max Housing Fillet Radius (r) mm - 3.3
Max Housing Fillet Radius (r) inch - 0.13
Cup Frontface Backing Diameter (Da) mm - 106
Cup Frontface Backing Diameter (Da) inch - 4.17
Cup Backface Backing Diameter (Db) mm - 99
Cup Backface Backing Diameter (Db) inch - 3.9
Cage-Cone Backface Clearance (Aa) mm - 2.2
Cage-Cone Backface Clearance (Aa) inch - 0.08
Cage-Cone Frontface Clearance (Ab) mm - 1.2
Cage-Cone Frontface Clearance (Ab) inch - 0.05
Geometry Factor (G1) - 75.2
Geometry Factor (G2) - 21.3
Geometry Factor (Cg) - 0.1092
Weight (kg) - 1.34
Weight (lbs) - 2.96
Inner Part Number - 3981
Outer Part Number - 3920
TS - Single Row Tapered Roller Bearing
** Images are for representation purposes only
