Timken M257248DGW – M257210
Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
M257200
Cone Part Number
M257248DGW
Cup Part Number
M257210
Design Unit
Inch
Cage Material
Stamped Steel
Note
This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.
Dimensions
d - Bore
304.902 mm
D - Cup Outer Diameter
412.648 mm
B - Double Cone Width
128.588 mm
C - Cup Width
53.975 mm
T - Bearing Width across Cups
128.585 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.300 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
325 mm
Db - Cup Backface Backing Diameter
388.1 mm
Ab - Cage-Cone Frontface Clearance
3.6 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3
289000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4
1940000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5
504000 N
C6
158000 N
Factors
K - Factor7
1.83
e - ISO Factor8
0.32
Y1 - ISO Factor9
2.12
Y2 - ISO Factor10
3.15
Cg - Geometry Factor11
0.169
