Boston Gear Electrical Clutches and Brakes

Boston Gear Electrical Clutches and Brakes

These are a few common applications. Clutches and Brakes may be used wherever control of linear or rotary motion starts and stops are required.

Electric clutches and brakes perform controlled start and stop functions between a constantly-running prime mover and a load. Electrical commands are generated manually (pushbutton) or automatically (switch, photocell, tape, sequence programmer, etc.)

CLUTCH & BRAKE BASICS

DC clutches and brakes are magnetically-activated mechanical power transmission members normally installed between a motor shaft and driven shaft – either a speed reducer or the final driven shafts. Both a clutch and brake transmit torque mechanically in response to an electrical signal. In a clutch, a disc on a revolving shaft is connected by magnetic attraction to a disc on a stationary shaft thus starting the drive. In a brake, one disc is fixed and magnetic attraction stops the revolving disc.

THE DISCS ARE CONNECTED BY MEANS OF ELECTRO - MAGNETIC ATTRACTION

In a brake, one disc (the magnet) contains a coil embedded in a circular horseshoe shaped cavity. The other disc (the armature) consists of segments of iron attached to backing plate. A friction face is embedded in the magnet of the brake between the inner pole and the outer pole. When direct current is applied to the coil, magnetic force attracts the armature to the magnet. In the clutch, the magnet is stationary and the magnetic flux passes across an airgap and through a rotating rotor into the armature.

PRODUCT RANGE

• DOUBLE C-FACE DC CLUTCH/BRAKES
• FOOT MOUNTED DC CLUTCH/BRAKES
• DC SHAFT MOUNTED SELECTION
• DC SHAFT MOUNTED CLUTCHES
• DC SHAFT MOUNTED BRAKES
• DC SHAFT MOUNTED CLUTCH/BRAKES
• DC CLUTCH/BRAKE POWER SUPPLIES
• DOUBLE C-FACE AC BRAKES
• DOUBLE C-FACE WASHDOWN AC BRAKES
• AC MOTOR BRAKE KIT

For more information on Boston Gear Electrical Products feel free to download the product pdf.

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