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FGK 40 Sprag Freewheel Bike Bearing One Way Clutch

Internal Freewheels FGK
for press fit on the outer ring
with sprags and bearing

Data Sheet
| Item | FGK |
| Material | GCr15 |
| Outer Diameter | 62 mm |
| Inner Diameter | 40 mm |
| Width | 30 mm |
| Weight | 0.30 kg |
| Norminal Torque | 310 Nm |
| Delivery Time | 7-10 days |
Features
Internal Freewheels FGK are sprag freewheels with bearing support in the dimensions of the
needle bearing series 59. The freewheels are supplied grease-filled for normal operating
conditions and are maintenance-free. The outer ring is pressed into the customer housing. This makes compact, space-saving fitting solutions possible. The freewheels FGK are used as
Backstops
Overrunning Clutches
Indexing Freewheels
Nominal torques up to 460 Nm. The torque is transmitted on the outer ring by press fit. Bores up to 50 mm.

Different Freewheel Sizes Of FGK Series You May Choose
| Freewheel Size | Nominal t orque | Max. speed | Outer ring freewheels/ | dynamic C | Load rating of bearing support | sta | tic C | Bore d | D | K | L | Weight |
| MN | Inner ring freewheels/ | overruns min-1 | Roller | Ball | Roller | Ball | mm | mm | mm | mm | kg | |
| Nm | overruns min-1 | N | N | N | N | |||||||
| FGK 20 | 50 | 5 500 | 4 000 | 5 600 | 4 400 | 2 900 | 2750 | 20 | 37 | 42 | 23 | 0,09 |
| FGK 25 | 70 | 5 300 | 3 800 | 6 300 | 5 300 | 3 450 | 3 350 | 25 | 42 | 48 | 23 | 0,11 |
| FGK 30 | 95 | 5 000 | 3 500 | 7 700 | 5 500 | 4 600 | 3 650 | 30 | 47 | 54 | 23 | 0,13 |
| FGK 35 | 200 | 4 600 | 3 200 | 8 200 | 8 500 | 5 200 | 5 700 | 35 | 55 | 63 | 27 | 0,20 |
| FGK 40 | 310 | 4 200 | 3 000 | 8 650 | 8 300 | 5 750 | 5 700 | 40 | 62 | 70 | 30 | 0,30 |
| FGK 45 | 370 | 3 800 | 2 500 | 9 200 | 9 650 | 6 350 | 7 200 | 45 | 68 | 76 | 30 | 0,34 |
| FGK 50 | 460 | 3 400 | 2 200 | 9 650 | 10 000 | 6 950 | 7 800 | 50 | 72 | 80 | 30 | 0,36 |
Application example
Internal Freewheel FGK 35 as an indexing freewheel in a circular knitting machine. Set-up in order to change material or after breakdown requires a sensitive, manual adjustment of the
rotary table. Therefore the rotary table is moved per hand lever via the freewheel which is working in driving operation. After set-up, the drive is carried out via the main motor and the
freewheel outer ring overruns.
Mounting
The torque is transmitted on the inner and outer ring by press fit. In order to transmit the
torques specified in the table, the outer ring must be accommodated in a housing with an
external diameter K. The housing is made of steel or grey cast iron in minimum quality GG-
20. When using other housing materials or smaller external diameters, we urge you to contact
us regarding the transmissible torque. The tolerance of the housing bore D must be ISO R6 and the tolerance of the shaft must be ISO p5. With these fits, normal bearing clearance is achieved in a built-in state. The permissible operating temperature of the freewheel is - 40°C to 80°C.
Lubrication
The freewheels are supplied grease-filled for normal operating conditions. However, the
freewheels can also be connected to the customer’s oil lubrication systeem; this is particularly
recommended in the case of higher speeds.
Example for ordering
Freewheel size FGK 40, standard type:
• FGK 40




Pre-sale service:
We will delivery the goods in 10 days after your order is confirmed.
After sale service:
Our factory provide technical assistance to support every doubt during usage and maintenance.
Changzhou Suma Precision Machinery Co., Ltd(Changzhou Tianniu Clutch Factory)is a manufacturer specialized in Producing Various cam clutch, one way bearing, one way clutch, backstop clutch, overrunning clutch and other bearings with high technology. 
We are following "Best Quality, Best Price, Fast Delivery, Best Serves" to make all of our old and new customers satisfied.
Our Advantages
1. Advanced producing equipment.
2. Strict requirement for the raw material
3. Complete&perfect process flow
4. Good quality of each batch of the product
5. Different grades of price for different quality
FAQ
Q: How do you pack the goods?
Q: Can i get the samples from you?
A: It is highly encouraged to ask for the samples for quality check.
Q: Can you promise to deliver the goods in time?
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