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Date: 2016-08-22

Timken 495-S - 493 bearing stock, Dimensions, Drawing

Series 495
Cone Part Number 495-S
Cup Part Number 493
Design Units Imperial
Bearing Weight 4.2000 lb
1.9000 Kg
Cage Type Stamped Steel
D - Cup Outer Diameter 5.3750 in
136.525 mm
d - Cone Bore 2.8125 in
71.438 mm
B - Cone Width 1.1720 in
29.769 mm
C - Cup Width 0.8750 in
22.225 mm
T - Bearing Width 1.1875 in
30.163 mm
Z - Number of Rollers Per Row 23
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 3.94 in
82.04 mm
db - Cone Backface Backing Diameter 3.46 in
87.88 mm
Da - Cup Frontface Backing Diameter 5.16 in
131.06 mm
Db - Cup Backface Backing Diameter 4.80 in
121.92 mm
Ab - Cage-Cone Frontface Clearance 0.08 in
2.03 mm
Aa - Cage-Cone Backface Clearance 0.10 in
2.54 mm
a - Effective Center Location3 -0.03 in
-0.80 mm
C90 - Dynamic Radial Rating (90 million revolutions)1 9000 lbf
40000 N
C1 - Dynamic Radial Rating (1 million revolutions)2 34700 lbf
154000 N
C0 - Static Radial Rating 48600 lbf
216000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)3 6850 lbf
30500 N
K - Factor1 1.31
e - ISO Factor2 0.44
Y - ISO Factor3 1.35
G1 - Heat Generation Factor (Roller-Raceway) 105
G2 - Heat Generation Factor (Rib-Roller End) 29.3
Cg - Geometry Factor 0.125



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