Hilliard’s line of overrunning clutches is economically priced and ideally suited for backstopping and gearbox applications. Custom designs and rapid prototyping are available. The overrunning clutch can be used for ratchet-type indexing operations such as packaging equipment and printing presses. When used in conjunction with a torque arm to hold the output shaft, Hilliard overrunning clutches provide instant backstopping protection with zero backlash from reversed rotation whenever power to the conveyor’s drive unit is interrupted.

The Hilliard Corporation’s linkless centrifugal clutches combine a dowel pin, vibration dampening bushing and a symmetrical spring design. The results are a long service life at an economical price. Other benefits include soft starts, load-free starting and overload protection. Hilliard’s centrifugal clutches are ideal for applications such as fans, blowers, conveyor drives and mills. Our engineering and manufacturing capabilities offer a wide range of choices, from common mounts to custom designs.

The Hilliard M200 brake caliper is a hydraulic applied, spring retracted brake caliper for use in heavy duty industrial applications. The brake caliper is suitable for outdoor applications and has been designed for use in many different extreme environments. 

The M200 brake caliper is capable of producing a maximum 5,000 LBF (22 kN) of braking force at 1600 PSI (110 Bar) and has been designed for use in static or dynamic applications. Static applications can have up to a 50% reduction in braking force.

The Hilliard M300 brake caliper is a hydraulic applied, spring retracted brake caliper for use in heavy duty industrial applications. The brake caliper is suitable for outdoor applications and has been designed for use in many different extreme environments.

The M300 brake caliper is capable of producing a maximum 10,600 LBF (47 kN) of braking force at 1600 PSI (110 Bar) and has been designed for use in static or dynamic applications. Static applications can have up to a 50% reduction in braking force.

The Hilliard M400HS brake caliper is a hydraulic applied, spring retracted brake caliper for use in heavy duty industrial applications. The brake caliper is suitable for outdoor applications and has been designed for use in many different extreme environments. 

The M400HS brake caliper is capable of producing a maximum 12,960 lbf (57.6 kN) of braking force at 1800 psi (124 bar) and has been designed for use in static or dynamic applications. Static applications can have up to a 50% reduction in braking force.

The Hilliard M400SH brake caliper is a spring applied, hydraulically released brake for use in heavy duty industrial applications. The brake comes standard with marine grade epoxy paint suitable for outdoor environments. The M400SH is available with standard force ratings which when paired with the correct disc size produces an exact braking torque for the application. 

The caliper features "Maintenance Mode" which removes all stored spring energy within the cylinder assembly. This allows for brake pad replacement, monitor unit adjustment and seal replacement without the need to remove the brake from service

The Hilliard M500HS brake caliper is a hydraulic applied, spring retracted brake caliper for use in heavy duty industrial applications. The brake caliper is suitable for outdoor applications and has been designed for use in many different extreme environments. 

The M500HS brake caliper is capable of producing a maximum 27,000 lbf (120 kN) of braking force at 1600 psi (110 bar) and has been designed for use in static or dynamic applications. Static applications can have up to a 50% reduction in braking force.