Timken M257149DW – M257110
Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
M257100
Cone Part Number
M257149DW
Cup Part Number
M257110
Design Unit
Inch
Cage Material
Stamped Steel
Related Assembly Number(s)
M257149DW-90016
Dimensions
d - Bore
304.8 mm
D - Cup Outer Diameter
419.1 mm
B - Double Cone Width
130.175 mm
C - Cup Width
53.975 mm
T - Bearing Width across Cups
130.175 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
1.5 mm
r - Cup Backface "To Clear" Radius2
6.4 mm
da - Cone Frontface Backing Diameter
322 mm
Db - Cup Backface Backing Diameter
391.90 mm
Ab - Cage-Cone Frontface Clearance
4.6 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3
310000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4
2080000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5
540000 N
C6
176000 N
Factors
K - Factor7
1.76
e - ISO Factor8
0.33
Y1 - ISO Factor9
2.03
Y2 - ISO Factor10
3.02
G1 - Heat Generation Factor (Roller-Raceway)
2160
G2 - Heat Generation Factor (Rib-Roller End)
303
Cg - Geometry Factor11
0.167
