Double row needle roller bearings without an inner ring consist of an outer ring with two needle roller and cage assemblies. They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes flanges to guide the roller and cage assemblies and has features to facilitate relubrication. The roller and cage assemblies and the outer ring form a non-separable unit.
| Fw |
63 mm
|
Diameter under rollers |
|---|---|---|
| D |
80 mm
|
Outside diameter |
| C |
45 mm
|
Width |
| r1,2 |
min. 1 mm
|
Chamfer dimension outer ring |
| Da |
max. 75 mm
|
Abutment diameter housing (with flanges) |
|---|---|---|
| ra |
max. 1 mm
|
Fillet radius |
| Basic dynamic load rating | C |
89.7 kN
|
|---|---|---|
| Basic static load rating | C0 |
190 kN
|
| Fatigue load limit | Pu |
23.2 kN
|
| Reference speed |
6 300 r/min
|
|
| Limiting speed |
7 000 r/min
|
| Mass bearing |
0.47 kg
|
| 63x80x8 CRW1 R | Radial shaft seal |
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