Double row cylindrical roller bearings are designed to accommodate high to very high radial loads in combination with medium to high speeds. The SKF assortment includes many designs and variants, such as standard and full complement bearings and also greased and sealed bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.
| Bore type |
Tapered 1:12
|
| d |
670 mm
|
Bore diameter |
|---|---|---|
| D |
900 mm
|
Outside diameter |
| B |
230 mm
|
Width |
| D1 |
821.2 mm
|
Shoulder diameter outer ring (NNU design) |
| F |
738 mm
|
Raceway diameter inner ring (NNU design) |
| b |
22.3 mm
|
Width annular lubrication groove at outer ring |
| K |
12 mm
|
Diameter lubrication hole (outer ring) |
| r1,2 |
min. 6 mm
|
Chamfer dimension outer ring |
| r3,4 |
min. 3 mm
|
Chamfer dimension inner ring (bearing with tapered bore) |
| s |
max. 6 mm
|
Permissible axial displacement from the normal position of one bearing ring relative to the other (all) |
| da |
min. 693 mm
|
Abutment diameter shaft |
|---|---|---|
| da |
max. 732 mm
|
Abutment diameter shaft (NNU design) |
| Da |
max. 877 mm
|
Abutment diameter housing |
| ra |
max. 5 mm
|
Fillet radius |
| Basic dynamic load rating | C |
4 950 kN
|
|---|---|---|
| Basic static load rating | C0 |
13 700 kN
|
| Fatigue load limit | Pu |
930 kN
|
| Attainable speed for grease lubrication |
700 r/min
|
|
| Attainable speed for oil-air lubrication |
600 r/min
|
| Mass bearing |
410 kg
|
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