Timken 3387 – 3320-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
3300
Cone Part Number
3387
Cup Part Number
3320-B
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
38.1 mm
D - Cup Outer Diameter
80.167 mm
D1 - Flange Outer Diameter
84.826 mm
B - Cone Width
30.391 mm
C - Cup Width
23.813 mm
C1 - Cup Flange Width
4.763 mm
T1 - Bearing Width to Flange
10.320 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.800 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
44.5 mm
db - Cone Backface Backing Diameter
45 mm
Da - Cup Frontface Backing Diameter
77.47 mm
Ab - Cage-Cone Frontface Clearance
1.8 mm
Aa - Cage-Cone Backface Clearance
1.5 mm
a - Effective Center Location3
-10.9 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
29800 N
C1 - Dynamic Radial Rating (1 million revolutions)5
115000 N
C0 - Static Radial Rating
129000 N
C6
13900 N
Factors
K - Factor7
2.14
e - ISO Factor8
0.27
Y - ISO Factor9
2.2
G1 - Heat Generation Factor (Roller-Raceway)
34.6
G2 - Heat Generation Factor (Rib-Roller End)
12.1
Cg - Geometry Factor10
0.0744
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3387 – 3320-B
