GFK Series GFK35 Backstop One Way Bearings for Package Machinery
Type GFK is a sprag type freewheel integrated into a 59...series ball bearing.
This design provides high torque capacity for minimal outside diameter. It is a bearing supported type, delivered grease lubricated.
Oil bath lubrication is also possible. Whatever the lubrication type, seals should be provided .
Torque transmission must be ensured by a press fit assembly into a rigid outer housing with R6 tolerance, and onto a shaft with p5 tolerance. Initial radial clearance has been provided to take into account this heavy press fit.
Operating temperature range:
–20°C to +100°C. Peaks up to +120°C are acceptable for short periods. Please contact us for higher temperatures.
| Type | Size | Bearing Series | Overrunning speeds | Outside Dia. | Height | Bearing loads | Weight | ||||||
| Rollers dyn. |
Balls dyn. |
Rollers Stat. |
Balls Stat. |
||||||||||
|
GFK |
d (mm) |
TKN1) (Nm) |
nimax2) (min-1) |
namax3) (min-1) |
D (mm) |
L (mm) |
r (mm) |
C (N) |
C (N) |
C0 (N) |
C0 (N) |
(kg) |
|
| 20 | 5904 | 51 | 5500 | 4000 | 37 | 23 | 0.5 | 5600 | 4400 | 2900 | 2750 | 0.09 | |
| 25 | 5905 | 65 | 5300 | 3800 | 42 | 23 | 0.5 | 6300 | 5300 | 3450 | 3350 | 0.11 | |
| 30 | 5906 | 95 | 5000 | 3500 | 47 | 23 | 0.5 | 7700 | 5500 | 4600 | 3650 | 0.13 | |
| 35 | 5907 | 204 | 4600 | 3200 | 55 | 27 | 1 | 8200 | 8500 | 5200 | 5700 | 0.20 | |
| 40 | 5908 | 315 | 4200 | 3000 | 62 | 30 | 1 | 8650 | 9300 | 5750 | 6700 | 0.30 | |
| 45 | 5909 | 370 | 3800 | 2500 | 68 | 30 | 1 | 9200 | 9700 | 6350 | 7300 | 0.34 | |
| 50 | 5910 | 460 | 3400 | 2200 | 72 | 30 | 1 | 9650 | 10000 | 6950 | 7800 | 0.36 | |
