Description
Brand - TIMKEN
Item Number - 1985/1931-B TIMKEN
Also Known As - 1985 - 1931-B
Category - Single Row Tapered Roller Bearing (TSF Type)
Bore Diameter (d) mm - 28.575
Bore Diameter (d) inch - 1.125
Outer Diameter (D) mm - 60.325
Outer Diameter (D) inch - 2.375
Width (T1) mm - 7.938
Width (T1) inch - 0.3125
Dynamic Load Rating (C1) N - 48400
Dynamic Load Rating (C1) lbf - 10900
Factor (e) - 0.33
Factor (Y) - 1.82
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) N - 12500
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) lbf - 2820
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) N - 7080
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) lbf - 1590
Ratio of Basic Dynamic Radial Load Rating to Basic Dynamic Thrust Rating (K) - 1.77
Basic Static Radial Load Rating (C0) N - 50200
Basic Static Radial Load Rating (C0) lbf - 11300
Cone Width (B) mm - 19.355
Cone Width (B) inch - 0.762
Cup Width (C) mm - 15.875
Cup Width (C) inch - 0.625
Effective Center Location (a) mm - -5.8
Effective Center Location (a) inch - -0.23
Outer Diameter of Outer Ring Flange (D1) mm - 64.186
Outer Diameter of Outer Ring Flange (D1) inch - 2.527
Flange Width (C2) mm - 3.967
Flange Width (C2) inch - 0.1562
Maximum Shaft Fillet Radius (R) mm - 0.8
Maximum Shaft Fillet Radius (R) inch - 0.03
Cone Frontface Backing Diameter (da) mm - 33.5
Cone Frontface Backing Diameter (da) inch - 1.32
Cone Backface Backing Diameter (db) mm - 34
Cone Backface Backing Diameter (db) inch - 1.34
Cup Frontface Backing Diameter (Da) mm - 57
Cup Frontface Backing Diameter (Da) inch - 2.24
Geometry Factor (G1) - 12.5
Geometry Factor (G2) - 6.3
Geometry Factor (Cg) - 0.0565
Weight (kg) - 0.27
Weight (lbs) - 0.59
Inner Part Number - 1985
Outer Part Number - 1931-B
TSF - Single-Row Bearing with a Flange on the Outer Ring
** Images are for representation purposes only
