Timken M278749 – M278710
Tapered Roller Bearings-TS(Tapered Single)Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
M278700
Cone Part Number
M278749
Cup Part Number
M278710
Design Unit
Inch
Cage Material
Pin-Type
Related Assembly Number(s)
M278749-902A1
Dimensions
d - Bore
571.500 mm
D - Cup Outer Diameter
812.800 mm
B - Cone Width
155.575 mm
C - Cup Width
120.650 mm
T - Bearing Width
155.575 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
6.4 mm
r - Cup Backface "To Clear" Radius2
6.35 mm
da - Cone Frontface Backing Diameter
609 mm
db - Cone Backface Backing Diameter
615 mm
Da - Cup Frontface Backing Diameter
773.70 mm
Db - Cup Backface Backing Diameter
755.90 mm
Ab - Cage-Cone Frontface Clearance
8.6 mm
Aa - Cage-Cone Backface Clearance
13.5 mm
a - Effective Center Location3
-11.4 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
1180000 N
C1 - Dynamic Radial Rating (1 million revolutions)5
4530000 N
C0 - Static Radial Rating
10600000 N
C6
669000 N
Factors
K - Factor7
1.76
e - ISO Factor8
0.33
Y - ISO Factor9
1.8
G1 - Heat Generation Factor (Roller-Raceway)
12425.1
G2 - Heat Generation Factor (Rib-Roller End)
669.4
Cg - Geometry Factor10
0.299
