Timken 31307
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
31307
Cone Part Number
X31307
Cup Part Number
Y31307
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
31307-90KA1
Dimensions
d - Bore
35 mm
D - Cup Outer Diameter
80 mm
B - Cone Width
21.000 mm
C - Cup Width
15.000 mm
T - Bearing Width
22.750 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
2.030 mm
r - Cup Backface "To Clear" Radius2
1.52 mm
da - Cone Frontface Backing Diameter
45 mm
db - Cone Backface Backing Diameter
56 mm
Da - Cup Frontface Backing Diameter
76.96 mm
Db - Cup Backface Backing Diameter
68.07 mm
Ab - Cage-Cone Frontface Clearance
3.6 mm
Aa - Cage-Cone Backface Clearance
2.5 mm
a - Effective Center Location3
3.3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
22400 N
C1 - Dynamic Radial Rating (1 million revolutions)5
86300 N
C0 - Static Radial Rating
74800 N
C6
31600 N
Factors
K - Factor7
0.71
e - ISO Factor8
0.83
Y - ISO Factor9
0.73
G1 - Heat Generation Factor (Roller-Raceway)
17.8
G2 - Heat Generation Factor (Rib-Roller End)
8.7
Cg - Geometry Factor10
0.0839
