Timken 557
Tapered Roller Bearings - Single Cones - Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
Specifications
Series
555
Cone Part Number
557
Design Units
Imperial
Cage Type
Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
332000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
86100 N
Dimensions
d - Cone Bore
55.001 mm
B - Cone Width
36.678 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius3
3.600 mm
da - Cone Frontface Backing Diameter
66 mm
db - Cone Backface Backing Diameter
72 mm
Ab - Cage-Cone Frontface Clearance
2 mm
Aa - Cage-Cone Backface Clearance
1.8 mm
a - Effective Center Location4
-9.4 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)5
49400 N
C1 - Dynamic Radial Rating (1 million revolutions)6
191000 N
C0 - Static Radial Rating
248000 N
C7
29300 N
Factors
K - Factor8
1.69
G1 - Heat Generation Factor (Roller-Raceway)
91
G2 - Heat Generation Factor (Rib-Roller End)
21.1
Cg - Geometry Factor9
0.111
