Description
Timken Part Number 558 – 552A Specifications:
Series |
555 |
Cone Part Number |
558 |
Cup Part Number |
552A |
Design Units |
Imperial |
Bearing Weight |
2.1 Kg4.6 lb |
Cage Type |
Stamped Steel |
Dimensions
d – Bore |
60.325 mm2.3750 in |
D – Cup Outer Diameter |
123.825 mm4.8750 in |
B – Cone Width |
36.678 mm1.4440 in |
C – Cup Width |
30.163 mm1.1875 in |
T – Bearing Width |
38.100 mm1.5000 in |
Abutment and Fillet Dimensions
R – Cone Backface “To Clear” Radius1 | 2.290 mm0.09 in |
r – Cup Backface “To Clear” Radius2 | 3.3 mm0.130 in |
da – Cone Frontface Backing Diameter |
71.88 mm2.83 in |
db – Cone Backface Backing Diameter |
75.95 mm2.99 in |
Da – Cup Frontface Backing Diameter |
116.10 mm4.60 in |
Db – Cup Backface Backing Diameter |
108.97 mm4.29 in |
Ab – Cage-Cone Frontface Clearance |
2 mm0.08 in |
Aa – Cage-Cone Backface Clearance |
1.8 mm0.07 in |
a – Effective Center Location3 | -9.4 mm-0.37 in |
Basic Load Ratings
C90 – Dynamic Radial Rating (90 million revolutions)4 | 13200 lbf58600 N |
C1 – Dynamic Radial Rating (1 million revolutions)5 | 50800 lbf226000 N |
C0 – Static Radial Rating |
55700 lbf248000 N |
Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 7810 lbf34700 N |
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