17220007 Rubber Ring Coupling for Jack F4/F5/F6 Machine
Short Description
17220007 rubber ring coupling for Jack F4/F5/F6 direct-drive machines. COD available, ships across India.
₹50.00
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Part no. 17220007 rubber ring coupling for Jack F4, F5 and F6 direct-drive single needle lockstitch machines. It links the motor to the main shaft and absorbs small vibrations, so a worn or cracked ring shows up as slipping, noise or a machine that feels underpowered.
Fits
- Jack F4, F5, F6 direct-drive lockstitch machines
- Part no. 17220007
Signs the Coupling Is Worn
- Extra vibration or knocking from the motor area.
- The motor runs but the needle seems to lose power or lag.
- Visible cracks, flattening or crumbling on the rubber.
How to Replace the Coupling
- First, switch off and unplug the machine.
- Next, access the motor-to-shaft joint and remove the old rubber ring, noting its orientation.
- Then fit the new ring in the same way.
- Finally, turn the handwheel by hand to check it moves freely before powering on.
FAQ
How long does a rubber coupling last?
There is no fixed life. It depends on how many hours the machine runs and how hard it works, so inspect it whenever you service the motor and replace it as soon as it cracks or flattens.
Is this the same as other single needle motor couplings?
Not always. Sizes differ between machine groups, so use the part number 17220007 and the model list above to match it.
More parts: Jack F4 F5 F6 spare parts.
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Product Description
Part no. 17220007 rubber ring coupling for Jack F4, F5 and F6 direct-drive single needle lockstitch machines. It links the motor to the main shaft and absorbs small vibrations, so a worn or cracked ring shows up as slipping, noise or a machine that feels underpowered.
Fits
- Jack F4, F5, F6 direct-drive lockstitch machines
- Part no. 17220007
Signs the Coupling Is Worn
- Extra vibration or knocking from the motor area.
- The motor runs but the needle seems to lose power or lag.
- Visible cracks, flattening or crumbling on the rubber.
How to Replace the Coupling
- First, switch off and unplug the machine.
- Next, access the motor-to-shaft joint and remove the old rubber ring, noting its orientation.
- Then fit the new ring in the same way.
- Finally, turn the handwheel by hand to check it moves freely before powering on.
FAQ
How long does a rubber coupling last?
There is no fixed life. It depends on how many hours the machine runs and how hard it works, so inspect it whenever you service the motor and replace it as soon as it cracks or flattens.
Is this the same as other single needle motor couplings?
Not always. Sizes differ between machine groups, so use the part number 17220007 and the model list above to match it.
More parts: Jack F4 F5 F6 spare parts.
