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    Products   Precision Brakes and Clutches for the Design Engineer- Prototype and OEM Quantities Available

Precision Brakes and Clutches

for the Design Engineer- Prototype and OEM Quantities Available

Brakes & Clutches

SDP/SI offers a selection of high-quality brakes and clutches as standard catalog items. Products include: spring wrapped clutches and brakes, mechanical slip clutches, reverse-acting brakes, electromagnetic clutches and zero-backlash clutch couplings. If a standard catalog item doesn't fit your need our products can be modified to your specifications. We work closely with our customers, from assisting with the selection of a single key component to building a fully integrated system capable of meeting all your requirements.


Magnetic Clutches & Clutch Brakes Bu-Ord Sizes

Precision Bu-Ord Sized Magnetic Clutches & Clutch Brakes


SI builds precision units, Bu-Ord sizes 11 and 18. Our standard catalog offering includes magnetic clutches & clutch brakes, reverse-acting brakes, clutches & clutch brakes, and reverse-acting clutches &clutch brakes.


Precision Magnetic Particle Brakes

Precision Magnetic Particle Brakes


Magnetic Particle Brakes are ideal for tension control applications and high cycle applications such as labeling machines for the food and drug industry. Their operating torque range is broad and can be very accurately controlled. Standard catalog units have a voltage of 24V DC, other voltages are available on special order.


Precision Power-Off Brakes

Precision Power-Off Brakes


Power-Off Brakes are used to stop or hold a load when electrical power is lost. This type of brake is usually used near an electric motor. Inch and metric power-off brakes are offered in a variety of configurations and are energy efficient, simple to install and economical. Power-off parallel plate brakes are also available at SDP/SI


Precision Power-On Brakes

Precision Flange Mounted Power-On Brakes


Power-On Flange Mounted Brakes are anti-backlash when energized and zero drag when de-energized. Both inch and metric sizes are offered. 24V DC is standard with other voltages available on special order.


Precision Permanent Magnetic Brakes

Precision Permanent Magnetic Brakes



Precision Electromagnetic Clutch Couplings

Precision Electromagnetic Clutch Couplings


Shaft-Mounted Clutch Couplings are designed for inline loads. Standard voltage is 24V DC, other voltages and dissimilar bore combinations are available as special order.


Precision Unidirectional Roller Clutches

Precision Unidirectional Roller Clutches


Unidirectional Roller Clutches are designed for use with 1/8 inch to 3/4 inch (4 mm to 35 mm) hardened shafts. These roller clutches are ideal for indexing, backstopping, or overrunning operations. Free rolling one way, drives in opposite direction. They are lightweight, low profile and minimum backlash.


Precision Unidirectional Roller Clutches w/ Bearing Support

Precision Unidirectional Roller Clutches w/ Bearing Support


Precision Unidirectional Roller Clutches w/ Bearing Support" data-content="Unidirectional Roller Clutches with Bearing Support are designed for use with 3/8 inch to 5/8 inch (4 mm to 6 mm) hardened shafts. Bearing support is sintered bronze bearings. Also offered are metric unidirectional roller clutches with needle bearing support for 8 mm to 35 mm shafts.


Precision Electromagnetic Slip Clutches

Precision Electromagnetic Slip Clutches


Electromagnetic Slip Clutches are offered in a variety of configurations, materials and sizes. Both inch and metric dimensioned slip clutches are available as standard catalog items. The standard line of slip elements provides a wide selection of limit torques, sizes and coupling arrangements. In addition, our engineers will modify designs to meet your specific requirements.


Precision Shaft-Mounted Slip Clutches

Precision Shaft-Mounted Slip Clutches


We offer both inch and metric sized shaft-mounted clutches that are used for parallel loads. The zero-backlash armature hub is designed to accommodate a gear, sprocket or pulley to transmit torque to a second shaft.


Precision Mechanical Slip Clutches

Precision Mechanical Slip Clutches


Mechanical Slip Clutches are offered in a variety of configurations and sizes. Slip clutches are available as standard catalog items in both inch and metric sizes. The standard line of slip elements provides a wide selection of limit torques, sizes and coupling arrangements. For technical questions or help in selection please call our engineering group.