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Huco Vari-Torks are rotary friction devices with adjustable drag or slip torque. Controlled slip takes place between the hub and housing whenever the load exceeds the set torque.

Hub to shaft connection is greatly simplified by the new clamp fastening styles.

• 2-plate & 6-plate models
• 5 interface styles
• Set screw or clamp connection
• Compact proportions
• Use as a torque limiter, tensioning, or overrun device

These small, user-adjustable torque limiters are suitable for concentric or in-line mounting. They operate by friction using interleaved clutch plates and interrupt rotation when the load being transmitted reaches a pre-determined threshold. They are used in all kinds of small drives to help protect personnel and equipment.

Friction Clutch Categories:

• 2-Plate Basic Clutch - For concentric fixing with thro' bore to allow shaft to pass through
• 6-Plate Basic Clutch - Higher torque version of 2-Plate Basic Clutch
• 2-Plate with Sleeve Adaptor - For in-line mounting (clutch orientation unimportant)
• 6-Plate with Sleeve Adaptor - Higher torque version of 2-Plate with Sleeve Adaptor
• 2-Plate with SS Oldham - Basic clutch with integral set screw fixing Oldham coupling
• 6-Plate with SS Oldham - Higher torque version of 2-Plate with SS Oldham Coupling
• 2-Plate with IC Oldham - Basic clutch with integral clamp fixing Oldham coupling
• 6-Plate with IC Oldham - Higher torque version of 2-Plate with IC Oldham Coupling
• Single Plate Sub-Miniature Clutch

The construction is simple and robust and comprises a series of steel clutch plates engaging a hub and a series of friction rings engaging a housing. Pressure is brought to bear on the plates and friction rings by an adjuster acting through a spring and pressure plate. The load can be connected to either the steel inner hub or the aluminum alloy housing.

As a torque limiter, Vari-Tork interrupts continuity between power source and load when this reaches a pre-determined level.

As a tensioning device, Vari-Tork typically maintains tension in a filament or tape winding operation by exerting drag on the feed spool.

As an overrun device, Vari-Tork absorbs residual inertia of a motor when the load is braked or reaches a terminal stop.

Please click on the links to the right or contact Huco Dynatork today!