NAC model Air friction plate clutch can well replaced HDC friction disc clutch 

This air shaft clutch is linked with air pressure, released by return springs. Disc relies on air pressure to slide along the direction of the axis, contacting the friction plate. Disc, friction plate and so on, are assembling to the wheel to come into an integrated structure. Disc and friction plate are separated by return springs air pressure exhausted, clutch released. Friction plate can be parted by adjusting screwing nuts.

Installation Instruction

1) Precaution to install clutch

When install clutch onto shaft or install V-belt pulley, chain wheel onto rotating disc, please don’t hit clutch excessively. The gap between disc and friction plate should be between 0.5~ 0.8 mm.

2) Connect rotation

Air chamber and piston will be caused connect rotation by bearing, equipped air pressure pipe(oil pressure rubber hose) with joint can prevent it happening.

3) Bearing lubrication

The trust ball bearing should be lubricated periodically. The period is between 1 to 6 months depends on the working condition. The other bearings are sealed, there is no need to supply.

4) Installation size

Try to make sure the distance between axial center part of V-belt pulley or chain wheel and end face is during allowable range. When install clutch onto shaft end, the minimum length of shaft which inserted into inner surface of hub.