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Torque Limiters & Couplings
The Morse Torque Limiter is a protective device that LIMITS TORQUE transmitted in a drive system by slipping when the torque demand exceed a preset value as a result of shock loads, overloads, or machine jams. It automatically re-engages when the overload torque has passed; no re-setting is required. It prevents machine damage and eliminates costly breakdown time. The Torque Limiter utilises spring loaded friction surfaces for its operation; slip torque is preset by adjustment of the spring force. The Torque Limiter can be used with a sprocket, gear, sheave or flange as the centre member clamped between two friction facings. Offered complete with a range of specially machined platewheels and shaft to shaft couplings, with torque range 3 - 8540 Nm. Simple Design . Easy Adjustment. Wide Torque Adjustment. Compact . Minimum Maintenance. Economical. Dependable. Durable

Sheargard Overload Clutches & Couplings

The Cross Sheargard Clutch uses the unique 'Howdon' Wedge Pin to provide overload protection. For synchronous and indexing drives the Sheargard offers optimum low cost protection with ease of maintenance, reliability of torque setting, and long term operational reliability. Designed to accept Standard Torque Limiter Platewheels and Roller Chain Couplings, the Sheargard is available from stock with an extensive range of preset torque ratings and optional sensor plate to isolate the drive in the event of an overload. Standard stock Sheargard Clutches are available in 5 sizes providing a torque range from 40 to 10,000 Nm, plus standard units manufactured to order with torque capacity to 125,000 Nm.

Crossgard Overload Clutches & Overload Couplings

The Crossgard Series of Overload Clutches use sprung loaded balls locked in detents to provide drive and overload control. The balls are random positioned so drive can be engaged in one relative angular position, so ensuring full synchronisation of the drive at all times. In the event of an overload the balls are driven out of their detents to release the torque, and cause axial movement of the pressure plate which can be used to actuate a sensor to isolate the drive. There are three basic types, all of which are also available as flexible shaft couplings. Type CG Crossgard Clutch Low cost, simple design for general purpose applications: provide good torque range (10-1080 Nm) with operating speeds to 700 rpm. Type CGX Crossgard Clutch Unique design provides zero backlash drives: torque range 1.7-785 Nm and maximum speed 1400 rpm. Type CGZ Crossgard Clutch High speed (up to 1800 rpm) overload clutch, with total drive disengagement: torque 2.4-450 Nm.