Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. Bearings without flanges on the outer ring are separable, i.e. the outer ring and the needle roller and cage assembly can be mounted separately.
| d |
20 mm
|
Bore diameter |
|---|---|---|
| D |
37 mm
|
Outside diameter |
| B |
16 mm
|
Width |
| E |
32 mm
|
Raceway diameter outer ring |
| F |
25 mm
|
Raceway diameter inner ring |
| r1,2 |
min. 0.3 mm
|
Chamfer dimension outer ring |
| s |
max. 0.5 mm
|
Permissible axial displacement from the normal position of one bearing ring relative to the other |
| da |
31.4 mm
|
Smallest permissible abutment diameter shaft, bearings without flanges |
|---|---|---|
| db |
24.5 mm
|
Smallest permissible abutment diameter shaft, bearings without flanges |
| Da |
32.5 mm
|
Abutment diameter housing (without flanges) |
| Db |
25.6 mm
|
Smallest permissible abutment diameter housing, bearings without flanges |
| ra |
max. 0.3 mm
|
Fillet radius |
| Basic dynamic load rating | C |
20.1 kN
|
|---|---|---|
| Basic static load rating | C0 |
28 kN
|
| Fatigue load limit | Pu |
3.35 kN
|
| Reference speed |
15 000 r/min
|
|
| Limiting speed |
17 000 r/min
|
| Mass bearing |
0.082 kg
|
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