Timken 3979 – 3920 (Y4S-3920)
Tapered Roller Bearings - 2TS-DM (Matched Bearing Assembly, Direct Mount)
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
3979 – 3920 (Y4S-3920)
Specifications
Cone Part Number
3979
Cup Part Number
3920
Related Assembly Number(s)
3979-902A2
Outer Spacer Part Number
Y4S-3920
Design Unit
Inch
Dimensions
d - Bore
57.150 mm
D - Cup Outer Diameter
112.713 mm
T - Width
60.325 mm
B - Width
60.096 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.50 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
db - Cone Backface Backing Diameter
72 mm
Da - Cup Frontface Backing Diameter
106.17 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
36000 N
C1 - Dynamic Radial Rating (1 million revolutions)4
242000 N
C5
24800 N
C906
62700 N
Factors
K - Factor7
1.45
e - ISO Factor8
0.4
Y1 - ISO Factor9
1.68
Y2 - ISO Factor10
2.5
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3979 – 3920 (Y4S-3920)
