Timken 31311
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
31311M
Cone Part Number
X31311M
Cup Part Number
Y31311M
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
31311M-90KM1
Dimensions
d - Bore
55 mm
D - Cup Outer Diameter
120 mm
B - Cone Width
29.000 mm
C - Cup Width
21.000 mm
T - Bearing Width
31.500 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
2.540 mm
r - Cup Backface "To Clear" Radius2
2.03 mm
da - Cone Frontface Backing Diameter
68 mm
db - Cone Backface Backing Diameter
82 mm
Da - Cup Frontface Backing Diameter
115.10 mm
Db - Cup Backface Backing Diameter
103.12 mm
Ab - Cage-Cone Frontface Clearance
4.3 mm
Aa - Cage-Cone Backface Clearance
3.8 mm
a - Effective Center Location3
6.9 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
44600 N
C1 - Dynamic Radial Rating (1 million revolutions)5
172000 N
C0 - Static Radial Rating
157000 N
C6
63000 N
Factors
K - Factor7
0.71
e - ISO Factor8
0.83
Y - ISO Factor9
0.73
G1 - Heat Generation Factor (Roller-Raceway)
45.5
G2 - Heat Generation Factor (Rib-Roller End)
20
Cg - Geometry Factor10
0.0739
