Timken 378DW – 374
Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
375
Cone Part Number
378DW
Cup Part Number
374
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
49.213 mm
D - Cup Outer Diameter
93.264 mm
B - Double Cone Width
67.488 mm
C - Cup Width
15.083 mm
T - Bearing Width across Cups
50.010 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.800 mm
r - Cup Backface "To Clear" Radius2
1.27 mm
da - Cone Frontface Backing Diameter
56 mm
Db - Cup Backface Backing Diameter
85.09 mm
Ab - Cage-Cone Frontface Clearance
-4.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3
22800 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4
153000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5
39700 N
C6
13200 N
Factors
K - Factor7
1.73
e - ISO Factor8
0.34
Y1 - ISO Factor9
1.99
Y2 - ISO Factor10
2.97
Cg - Geometry Factor11
0.0816
