Timken 3975 – 3920-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
3900
Cone Part Number
3975
Cup Part Number
3920-B
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
50.8 mm
D - Cup Outer Diameter
112.713 mm
D1 - Flange Outer Diameter
117.373 mm
B - Cone Width
30.048 mm
C - Cup Width
23.813 mm
C1 - Cup Flange Width
4.763 mm
T1 - Bearing Width to Flange
11.112 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.600 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
61 mm
db - Cone Backface Backing Diameter
68 mm
Da - Cup Frontface Backing Diameter
108.97 mm
Ab - Cage-Cone Frontface Clearance
2 mm
Aa - Cage-Cone Backface Clearance
1.5 mm
a - Effective Center Location3
-4.6 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
36000 N
C1 - Dynamic Radial Rating (1 million revolutions)5
139000 N
C0 - Static Radial Rating
191000 N
C6
24800 N
Factors
K - Factor7
1.45
e - ISO Factor8
0.4
Y - ISO Factor9
1.49
Cg - Geometry Factor10
0.109
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