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Date: 2016-08-22

Timken 28151 - 28300 bearing stock, Dimensions, Drawing

Series 28000
Cone Part Number 28151
Cup Part Number 28300
Design Units Imperial
Bearing Weight 0.9000 lb
0.4000 Kg
Cage Type Stamped Steel
D - Cup Outer Diameter 3.0000 in
76.200 mm
d - Cone Bore 1.5000 in
38.100 mm
B - Cone Width 0.8244 in
20.940 mm
C - Cup Width 0.6105 in
15.507 mm
T - Bearing Width 0.8125 in
20.638 mm
Z - Number of Rollers Per Row 17
R - Cone Backface "To Clear" Radius1 0.140 in
3.560 mm
r - Cup Backface "To Clear" Radius2 0.050 in
1.27 mm
da - Cone Frontface Backing Diameter 1.71 in
43.43 mm
db - Cone Backface Backing Diameter 1.97 in
50.04 mm
Da - Cup Frontface Backing Diameter 2.83 in
71.88 mm
Db - Cup Backface Backing Diameter 2.68 in
68.07 mm
Ab - Cage-Cone Frontface Clearance 0.04 in
1.02 mm
Aa - Cage-Cone Backface Clearance 0.09 in
2.29 mm
a - Effective Center Location3 -0.19 in
-4.80 mm
C90 - Dynamic Radial Rating (90 million revolutions)1 3700 lbf
16500 N
C1 - Dynamic Radial Rating (1 million revolutions)2 14300 lbf
63500 N
C0 - Static Radial Rating 15500 lbf
68900 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)3 2550 lbf
11300 N
K - Factor1 1.45
e - ISO Factor2 0.4
Y - ISO Factor3 1.49
G1 - Heat Generation Factor (Roller-Raceway) 20.7
G2 - Heat Generation Factor (Rib-Roller End) 12.5
Cg - Geometry Factor 0.0709



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