Timken 3879 – 3820-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
3800
Cone Part Number
3879
Cup Part Number
3820-B
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
40 mm
D - Cup Outer Diameter
85.725 mm
D1 - Flange Outer Diameter
89.586 mm
B - Cone Width
30.163 mm
C - Cup Width
23.813 mm
C1 - Cup Flange Width
4.763 mm
T1 - Bearing Width to Flange
11.113 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
50 mm
db - Cone Backface Backing Diameter
51 mm
Da - Cup Frontface Backing Diameter
83.57 mm
Ab - Cage-Cone Frontface Clearance
2.8 mm
Aa - Cage-Cone Backface Clearance
1 mm
a - Effective Center Location3
-8.1 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
32200 N
C1 - Dynamic Radial Rating (1 million revolutions)5
124000 N
C0 - Static Radial Rating
148000 N
C6
22200 N
Factors
K - Factor7
1.45
e - ISO Factor8
0.4
Y - ISO Factor9
1.49
G1 - Heat Generation Factor (Roller-Raceway)
37.8
G2 - Heat Generation Factor (Rib-Roller End)
13.5
Cg - Geometry Factor10
0.0873
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3879 – 3820-B
