Freewheels One Way Ball Clutch Bearings Sprag Type Clutch GFK30
Model GFK is a sprag type clutch integrated into a 59 Series ball bearing.
This design provides high torque capacity for minimal outside diameter.
It is a bearing supported type, shipped grease lubricated.
Oil bath lubrication is also possible if the original grease is first removed by flushing the clutch with a suitable solvent.
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.
The total press fit on the GFK should not exceed the internal clearance for the model as listed in the Internal Clearance Column.
Freewheels One Way Ball Clutch Bearings Sprag Type Clutch GFK Series Specifications:
Type | Size | Overrunningspeeds | Used Bearing series | Basic Load Rating | Dimensions | Weight | |||||||
Rollers | Balls | Rollers | Balls | ||||||||||
dyn. | dyn. | stat. | stat. | ||||||||||
d | TKN1) | nmax2) | nmax3) | C | C | C0 | C0 | D | L | r | |||
mm | Nm | min-1 | min-1 | N | N | N | N | mm | mm | mm | kg | ||
GFK20 | 20 | 51 | 5500 | 4000 | 5904 | 5600 | 4400 | 2900 | 2750 | 37 | 23 | 0.5 | 0.09 |
GFK25 | 25 | 65 | 5300 | 3800 | 5905 | 6300 | 5300 | 3450 | 3350 | 42 | 23 | 0.5 | 0.11 |
GFK30 | 30 | 95 | 5000 | 3500 | 5906 | 7700 | 5500 | 4600 | 3650 | 47 | 23 | 0.5 | 0.13 |
GFK35 | 35 | 204 | 4600 | 3200 | 5907 | 8200 | 8500 | 5200 | 5700 | 55 | 27 | 1 | 0.2 |
GFK40 | 40 | 315 | 4200 | 3000 | 5908 | 8650 | 9300 | 5750 | 6700 | 62 | 30 | 1 | 0.3 |
GFK45 | 45 | 370 | 3800 | 2500 | 5909 | 9200 | 9700 | 6350 | 7300 | 68 | 30 | 1 | 0.34 |
GFK50 | 50 | 460 | 3400 | 2200 | 5910 | 9650 | 10000 | 6950 | 7800 | 72 | 30 | 1 | 0.36 |
NOTES:
1) Cmax=2.5 x TKN
2) Inner race overruns
3) Inner race overruns
Mounting example