These radial spherical plain bearings have a steel/PTFE FRP sliding contact surface combination. They are factory greased and maintenance-free. However, relubrication can extend bearing service life and can be applied via lubrication holes and an annular groove in both rings. Compared to the GEC design (axially split outer ring), the GEP design (radially split) has a wider and larger outside diameter for a given shaft size. This results in a higher basic load rating, but a smaller tilt angle.
| Maintenance |
Maintenance-free
|
| Sliding contact surface combination |
Steel/PTFE FRP
|
| Material, inner ring |
Bearing steel
|
| Sealing |
Without
|
| d |
400 mm
|
Bore diameter |
|---|---|---|
| D |
580 mm
|
Outside diameter |
| B |
280 mm
|
Width |
| C |
265 mm
|
Width outer ring |
| α |
2 °
|
Angle of tilt |
| dk |
514 mm
|
Raceway diameter inner ring |
| b |
21 mm
|
Width annular lubrication groove at outer ring |
| b1 |
21 mm
|
Width annular lubrication groove at inner ring |
| M |
8 mm
|
Diameter lubrication hole (outer ring) |
| r1 |
min. 1.5 mm
|
Chamfer dimension bore |
| r2 |
min. 4 mm
|
Chamfer dimension outer ring |
| da |
min. 418 mm
|
Abutment diameter shaft |
|---|---|---|
| da |
max. 431 mm
|
Abutment diameter shaft |
| Da |
min. 478 mm
|
Abutment diameter housing |
| Da |
max. 549 mm
|
Abutment diameter housing |
| ra |
max. 1.5 mm
|
Fillet radius shaft |
| rb |
max. 4 mm
|
Fillet radius housing |
| Basic dynamic load rating | C |
9 650 kN
|
|---|---|---|
| Basic static load rating | C0 |
14 600 kN
|
| Specific dynamic load factor | K |
80 N/mm²
|
| Specific static load factor | K0 |
120 N/mm²
|
| Material constant | KM |
1 055
|
| Mass plain bearing |
269 kg
|
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