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Date: 2016-08-22

Timken 3387 - 3325 bearing stock, Dimensions, Drawing

Series 3300
Cone Part Number 3387
Cup Part Number 3325
Design Units Imperial
Bearing Weight 1.5000 lb
0.7000 Kg
Cage Type Stamped Steel
D - Cup Outer Diameter 3.1486 in
79.974 mm
d - Cone Bore 1.5000 in
38.100 mm
B - Cone Width 1.1965 in
30.391 mm
C - Cup Width 0.9375 in
23.813 mm
T - Bearing Width 1.1563 in
29.370 mm
Z - Number of Rollers Per Row 15
R - Cone Backface "To Clear" Radius1 0.030 in
0.760 mm
r - Cup Backface "To Clear" Radius2 0.130 in
3.30 mm
da - Cone Frontface Backing Diameter 1.75 in
44.45 mm
db - Cone Backface Backing Diameter 1.77 in
44.96 mm
Da - Cup Frontface Backing Diameter 2.95 in
74.90 mm
Db - Cup Backface Backing Diameter 2.76 in
70.10 mm
Ab - Cage-Cone Frontface Clearance 0.04 in
1.02 mm
Aa - Cage-Cone Backface Clearance 0.07 in
1.78 mm
a - Effective Center Location3 -0.43 in
-10.90 mm
C90 - Dynamic Radial Rating (90 million revolutions)1 6700 lbf
29800 N
C1 - Dynamic Radial Rating (1 million revolutions)2 25800 lbf
115000 N
C0 - Static Radial Rating 29100 lbf
129000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)3 3130 lbf
13900 N
K - Factor1 2.14
e - ISO Factor2 0.27
Y - ISO Factor3 2.2
G1 - Heat Generation Factor (Roller-Raceway) 34.6
G2 - Heat Generation Factor (Rib-Roller End) 12.1
Cg - Geometry Factor 0.0744



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