Timken 31312
Tapered Roller Bearings - TS (Tapered Single) Metric
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
31312M
Cone Part Number
X31312M
Cup Part Number
Y31312M
Design Unit
Metric
Cage Material
Stamped Steel
Related Assembly Number(s)
31312-90KA3
Dimensions
d - Bore
60 mm
D - Cup Outer Diameter
130 mm
B - Cone Width
31.000 mm
C - Cup Width
22.000 mm
T - Bearing Width
33.500 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.050 mm
r - Cup Backface "To Clear" Radius2
2.54 mm
da - Cone Frontface Backing Diameter
74 mm
db - Cone Backface Backing Diameter
89 mm
Da - Cup Frontface Backing Diameter
123.70 mm
Db - Cup Backface Backing Diameter
111.00 mm
Ab - Cage-Cone Frontface Clearance
4.6 mm
Aa - Cage-Cone Backface Clearance
5.1 mm
a - Effective Center Location3
7.6 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
48100 N
C1 - Dynamic Radial Rating (1 million revolutions)5
186000 N
C0 - Static Radial Rating
188000 N
C6
68000 N
Factors
K - Factor7
0.71
e - ISO Factor8
0.83
Y - ISO Factor9
0.73
G1 - Heat Generation Factor (Roller-Raceway)
56.2
G2 - Heat Generation Factor (Rib-Roller End)
23.5
Cg - Geometry Factor10
0.0792
