Double 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. The outer ring includes flanges to guide the roller and cage assemblies and has features to facilitate relubrication. It is possible to assemble the inner and outer rings separately, permitting interference fits for shaft and housing and enabling easy maintenance inspections.
| d |
80 mm
|
Bore diameter |
|---|---|---|
| D |
110 mm
|
Outside diameter |
| B |
54 mm
|
Width |
| F |
90 mm
|
Raceway diameter inner ring |
| r1,2 |
min. 1 mm
|
Chamfer dimension outer ring |
| s |
max. 1 mm
|
Permissible axial displacement from the normal position of one bearing ring relative to the other |
| da |
min. 85 mm
|
Smallest permissible abutment diameter shaft, bearings with flanges |
|---|---|---|
| Da |
max. 105 mm
|
Abutment diameter housing (with flanges) |
| ra |
max. 1 mm
|
Fillet radius |
| Basic dynamic load rating | C |
134 kN
|
|---|---|---|
| Basic static load rating | C0 |
315 kN
|
| Fatigue load limit | Pu |
40 kN
|
| Reference speed |
4 500 r/min
|
|
| Limiting speed |
5 000 r/min
|
| Mass bearing |
1.52 kg
|
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