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
|
| Material, outer ring |
Quenched and tempered steel
|
| Sealing |
Without
|
| d |
460 mm
|
Bore diameter |
|---|---|---|
| D |
620 mm
|
Outside diameter |
| B |
218 mm
|
Width |
| C |
185 mm
|
Width outer ring |
| α |
3 °
|
Angle of tilt |
| dk |
540 mm
|
Raceway diameter inner ring |
| b |
27 mm
|
Width annular lubrication groove at outer ring |
| b1 |
27 mm
|
Width annular lubrication groove at inner ring |
| M |
10 mm
|
Diameter lubrication hole (outer ring) |
| r1 |
min. 1.5 mm
|
Chamfer dimension bore |
| r2 |
min. 4 mm
|
Chamfer dimension outer ring |
| da |
min. 470 mm
|
Abutment diameter shaft |
|---|---|---|
| da |
max. 494 mm
|
Abutment diameter shaft |
| Da |
min. 524.5 mm
|
Abutment diameter housing |
| Da |
max. 603 mm
|
Abutment diameter housing |
| ra |
max. 1.5 mm
|
Fillet radius shaft |
| rb |
max. 4 mm
|
Fillet radius housing |
| Basic dynamic load rating | C |
6 000 kN
|
|---|---|---|
| Basic static load rating | C0 |
9 000 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 |
182 kg
|
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