UMZ bearing company--Shandong Meizhou Precision Bearing Co.,Ltd is one automotive and industrial bearings--tapered roller bearing, wheel bearing, truck bearing, and ball bearing.
Tapered roller bearing is one of the msot popular bearing that is be used in automotive industry.
Taper roller bearings have tapered inner and outer ring raceways (cup and cone) between which tapered rollers are arranged. If extended, the tapered surfaces converge towards a single point on the bearing axis. This means that rolling conditions are at an optimum and their design makes taper roller bearings particularly suitable for the accommodation of combined radial and axial loads. The axial load carrying capacity of the bearings is largely determined by the contact angle which corresponds to the angle of the outer ring raceway. The larger the this angle, the larger the axial load carrying capacity.
Taper roller bearings are generally of separable design whereby the inner ring with rollers and cage assembly (cone), forms a unit which can be mounted separately from the outer ring (cup). Taper roller bearings can be a single or multi-row design including double row cones and double cups. Taper roller bearings have a one-piece pressed steel cage which retains the rollers on the cone and spaces them evenly.
Applications for Taper roller bearings include vehicle wheels, differential and pinion configurations, conveyor rolls, machine tool spindles and trailer wheels.
Specifications
Series |
55000C |
Cone Part Number |
55206C |
Cup Part Number |
55437 |
Design Unit |
Inch |
Cage Material |
Stamped Steel |
Dimensions
d - Bore |
2.0625 in52.388 mm |
D - Cup Outer Diameter |
4.3750 in111.125 mm |
B - Cone Width |
1.0594 in26.909 mm |
C - Cup Width |
0.8125 in20.638 mm |
T - Bearing Width |
1.1875 in30.163 mm |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius1 |
0.140 in3.60 mm |
| r - Cup Backface "To Clear" Radius2 |
0.130 in3.30 mm |
da - Cone Frontface Backing Diameter |
2.54 in64.4 mm |
db - Cone Backface Backing Diameter |
2.83 in72 mm |
Da - Cup Frontface Backing Diameter |
4.15 in105.40 mm |
Db - Cup Backface Backing Diameter |
3.62 in91.95 mm |
Ab - Cage-Cone Frontface Clearance |
0.16 in4.1 mm |
Aa - Cage-Cone Backface Clearance |
0.17 in4.3 mm |
| a - Effective Center Location3 |
0.3 in7.6 mm |
Basic Load Ratings
| C90 - Dynamic Radial Rating (90 million revolutions)4 |
8810 lbf39200 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 |
34000 lbf151000 N |
C0 - Static Radial Rating |
36200 lbf161000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 |
13300 lbf59300 N |
Factors
| K - Factor7 |
0.66 |
| e - ISO Factor8 |
0.88 |
| Y - ISO Factor9 |
0.68 |
G1 - Heat Generation Factor (Roller-Raceway) |
48.7 |
G2 - Heat Generation Factor (Rib-Roller End) |
18.1 |
| Cg - Geometry Factor10 |
0.120 |
Audited Supplier 
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