Description
Brand - TIMKEN
Item Number - 2578/2523-B TIMKEN
Also Known As - 2578 - 2523-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 - 69.85
Outer Diameter (D) inch - 2.75
Width (T1) mm - 8.733
Width (T1) inch - 0.3438
Dynamic Load Rating (C1) N - 83700
Dynamic Load Rating (C1) lbf - 18800
Factor (e) - 0.27
Factor (Y) - 2.19
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) N - 21700
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) lbf - 4880
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) N - 10200
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) lbf - 2280
Ratio of Basic Dynamic Radial Load Rating to Basic Dynamic Thrust Rating (K) - 2.14
Basic Static Radial Load Rating (C0) N - 94400
Basic Static Radial Load Rating (C0) lbf - 21200
Cone Width (B) mm - 25.357
Cone Width (B) inch - 0.9983
Cup Width (C) mm - 19.05
Cup Width (C) inch - 0.75
Effective Center Location (a) mm - -8.6
Effective Center Location (a) inch - -0.34
Outer Diameter of Outer Ring Flange (D1) mm - 73.711
Outer Diameter of Outer Ring Flange (D1) inch - 2.902
Flange Width (C2) mm - 3.962
Flange Width (C2) inch - 0.156
Maximum Shaft Fillet Radius (R) mm - 2.3
Maximum Shaft Fillet Radius (R) inch - 0.09
Cone Frontface Backing Diameter (da) mm - 35
Cone Frontface Backing Diameter (da) inch - 1.38
Cone Backface Backing Diameter (db) mm - 39
Cone Backface Backing Diameter (db) inch - 1.54
Cup Frontface Backing Diameter (Da) mm - 66
Cup Frontface Backing Diameter (Da) inch - 2.6
Geometry Factor (G1) - 23.6
Geometry Factor (G2) - 9.6
Geometry Factor (Cg) - 0.0656
Weight (kg) - 0.49
Weight (lbs) - 1.09
Inner Part Number - 2578
Outer Part Number - 2523-B
TSF - Single-Row Bearing with a Flange on the Outer Ring
** Images are for representation purposes only
