Description
Brand - TIMKEN
Item Number - 8578/8520-B TIMKEN
Also Known As - 8578 - 8520-B
Category - Single Row Tapered Roller Bearing (TSF Type)
Bore Diameter (d) mm - 241.3
Bore Diameter (d) inch - 9.5
Outer Diameter (D) mm - 327.025
Outer Diameter (D) inch - 12.875
Width (T1) mm - 25.4
Width (T1) inch - 1
Dynamic Load Rating (C1) N - 527000
Dynamic Load Rating (C1) lbf - 119000
Factor (e) - 0.41
Factor (Y) - 1.48
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) N - 137000
Basic Dynamic Radial Load Rating (90 Million Revolution) (C90) lbf - 30700
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) N - 95200
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) lbf - 21400
Ratio of Basic Dynamic Radial Load Rating to Basic Dynamic Thrust Rating (K) - 1.44
Basic Static Radial Load Rating (C0) N - 1070000
Basic Static Radial Load Rating (C0) lbf - 240000
Cone Width (B) mm - 52.388
Cone Width (B) inch - 2.0625
Cup Width (C) mm - 36.512
Cup Width (C) inch - 1.4375
Effective Center Location (a) mm - 7.6
Effective Center Location (a) inch - 0.3
Outer Diameter of Outer Ring Flange (D1) mm - 336.448
Outer Diameter of Outer Ring Flange (D1) inch - 13.246
Flange Width (C2) mm - 9.525
Flange Width (C2) inch - 0.375
Maximum Shaft Fillet Radius (R) mm - 6.4
Maximum Shaft Fillet Radius (R) inch - 0.25
Cone Frontface Backing Diameter (da) mm - 253
Cone Frontface Backing Diameter (da) inch - 9.96
Cone Backface Backing Diameter (db) mm - 264
Cone Backface Backing Diameter (db) inch - 10.39
Cup Frontface Backing Diameter (Da) mm - 313
Cup Frontface Backing Diameter (Da) inch - 12.32
Geometry Factor (G1) - 1050.5
Geometry Factor (G2) - 172.4
Geometry Factor (Cg) - 0.1401
Weight (kg) - 11.81
Weight (lbs) - 26.05
Inner Part Number - 8578
Outer Part Number - 8520-B
TSF - Single-Row Bearing with a Flange on the Outer Ring
** Images are for representation purposes only