Timken 681A
Tapered Roller Bearings - Single Cones - Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
675
Cone Part Number
681A
Design Units
Imperial
Cage Type
Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
461000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
119000 N
Dimensions
d - Cone Bore
92.075 mm
B - Cone Width
41.275 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius3
6.4 mm
da - Cone Frontface Backing Diameter
104 mm
db - Cone Backface Backing Diameter
116 mm
Ab - Cage-Cone Frontface Clearance
3 mm
Aa - Cage-Cone Backface Clearance
4.3 mm
a - Effective Center Location4
-2.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)5
68600 N
C1 - Dynamic Radial Rating (1 million revolutions)6
265000 N
C0 - Static Radial Rating
386000 N
C7
55300 N
Factors
K - Factor8
1.24
G1 - Heat Generation Factor (Roller-Raceway)
182.5
G2 - Heat Generation Factor (Rib-Roller End)
37.3
Cg - Geometry Factor9
0.106
