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Date: 2016-08-22

Timken 525 - 522 bearing stock, Dimensions, Drawing

Series 525
Cone Part Number 525
Cup Part Number 522
Design Units Imperial
Bearing Weight 3.3000 lb
1.5000 Kg
Cage Type Stamped Steel
D - Cup Outer Diameter 4.0000 in
101.600 mm
d - Cone Bore 1.5000 in
38.100 mm
B - Cone Width 1.4200 in
36.068 mm
C - Cup Width 1.0625 in
26.988 mm
T - Bearing Width 1.3750 in
34.925 mm
Z - Number of Rollers Per Row 15
R - Cone Backface "To Clear" Radius1 0.140 in
3.560 mm
r - Cup Backface "To Clear" Radius2 0.130 in
3.30 mm
da - Cone Frontface Backing Diameter 1.89 in
48.01 mm
db - Cone Backface Backing Diameter 2.13 in
54.10 mm
Da - Cup Frontface Backing Diameter 3.76 in
95.50 mm
Db - Cup Backface Backing Diameter 3.50 in
88.90 mm
Ab - Cage-Cone Frontface Clearance 0.07 in
1.78 mm
Aa - Cage-Cone Backface Clearance 0.11 in
2.79 mm
a - Effective Center Location3 -0.50 in
-12.70 mm
C90 - Dynamic Radial Rating (90 million revolutions)1 9600 lbf
42700 N
C1 - Dynamic Radial Rating (1 million revolutions)2 37000 lbf
165000 N
C0 - Static Radial Rating 43000 lbf
191000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)3 4690 lbf
20800 N
K - Factor1 2.05
e - ISO Factor2 0.29
Y - ISO Factor3 2.1
G1 - Heat Generation Factor (Roller-Raceway) 57.9
G2 - Heat Generation Factor (Rib-Roller End) 13.4
Cg - Geometry Factor 0.0894



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