Double row full complement cylindrical roller bearings incorporate a maximum number of rollers and are therefore suitable for very heavy radial loads in combination with moderate speeds. Having three flanges on the two-piece inner ring and one central flange on the outer ring, NNF design bearings can locate the shaft axially in both directions. Two snap ring grooves in the outer ring simplify mounting and save space axially.
| d |
280 mm
|
Bore diameter |
|---|---|---|
| D |
420 mm
|
Outside diameter |
| B |
190 mm
|
Width |
| C |
189 mm
|
Outer ring width (sealed bearing) |
| d1 |
≈ 333 mm
|
Shoulder diameter inner ring |
| D3 |
413 mm
|
Snap ring groove diameter at outer ring |
| C1 |
163.2 mm
|
Distance between two snap ring grooves of the outer ring outside surface |
|
+ 0.2 mm
|
Tolerance for distance C1 | |
| C2 |
12.9 mm
|
Distance outer ring side face – snap ring groove (sealed bearing) |
| b |
7.3 mm
|
Width snap ring groove outer ring |
| b1 |
9.5 mm
|
Width annular lubrication groove outer ring |
| K |
6 mm
|
Diameter lubrication hole (outer ring) |
| r |
min. 2 mm
|
Chamfer dimension (sealed bearing) |
| r3,4 |
min. 1.1 mm
|
Chamfer dimension |
| da |
min. 288 mm
|
Abutment diameter shaft |
|---|---|---|
| das |
324 mm
|
Abutment diameter shaft |
| Ca1 |
154 mm
|
Abutment width applying for SW snap rings (sealed brg.) |
|
– 0.2 mm
|
Tolerance for abutment Ca (SW snap rings) | |
| Ca2 |
149 mm
|
Abutment width applying for DIN 471 snap rings (sealed brg.) |
|
– 0.2 mm
|
Tolerance for abutment Ca (DIN 471 snap rings) | |
| ra |
max. 2 mm
|
Fillet radius |
| Basic dynamic load rating | C |
2 550 kN
|
|---|---|---|
| Basic static load rating | C0 |
5 000 kN
|
| Fatigue load limit | Pu |
490 kN
|
| Limiting speed |
280 r/min
|
|
| Minimum load factor | kr |
0.4
|
| Mass bearing |
91 kg
|
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