Timken M278749
Tapered Roller Bearings - Single Cones - Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
M278700
Cone Part Number
M278749
Design Units
Imperial
Cage Type
Pin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
7890000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
2050000 N
Dimensions
d - Cone Bore
571.500 mm
B - Cone Width
155.575 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius3
6.4 mm
da - Cone Frontface Backing Diameter
609 mm
db - Cone Backface Backing Diameter
615 mm
Ab - Cage-Cone Frontface Clearance
8.6 mm
Aa - Cage-Cone Backface Clearance
13.5 mm
a - Effective Center Location4
-11.4 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)5
1180000 N
C1 - Dynamic Radial Rating (1 million revolutions)6
4530000 N
C0 - Static Radial Rating
10600000 N
C7
669000 N
Factors
K - Factor8
1.76
G1 - Heat Generation Factor (Roller-Raceway)
12425.1
G2 - Heat Generation Factor (Rib-Roller End)
669.4
Cg - Geometry Factor9
0.299
