Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly. 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 two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.
| Fw |
38 mm
|
Diameter under rollers |
|---|---|---|
| D |
48 mm
|
Outside diameter |
| C |
20 mm
|
Width |
| r1,2 |
min. 0.3 mm
|
Chamfer dimension outer ring |
| Da |
max. 46 mm
|
Abutment diameter housing (with flanges) |
|---|---|---|
| ra |
max. 0.3 mm
|
Fillet radius |
| Basic dynamic load rating | C |
25.5 kN
|
|---|---|---|
| Basic static load rating | C0 |
49 kN
|
| Fatigue load limit | Pu |
6.1 kN
|
| Reference speed |
11 000 r/min
|
|
| Limiting speed |
12 000 r/min
|
| Mass bearing |
0.079 kg
|
| G 38x48x4 | Radial shaft seal with a low cross-sectional height, single lip |
| SD 38x48x4 | Radial shaft seal with a low cross-sectional height, double lip |
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