PR-208 JB Industries Flexible Coupler

Flexible Shaft Coupler connects the drive motor to the pumping section of a vacuum pump, it design is to break away, protecting the motor, in the event of pump failure or seizure. Flexible couplers are a three part assembly: 2 metal hubs that look like gears and a flexible middle section. One of the hubs is attached to the shaft of the motor and the other is attached to the shaft of the cartridge. NOTE: The color of the flexible middle section can be either black or yellow.

Replacing Coupler (Motor Removed): Coat setscrew threads with removable thread sealant. Align coupler setscrew with flat surface of cartridge shaft. Tighten screw so coupler slides on to shaft but stops at the bottom of the flat. Tighten until screw head is flush with coupler surface (approx. 40 in. lbs.).

Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov