

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.
Clutch Applications PDF
PRECISION MECHANICAL SLIP CLUTCHES:

AVAILABLE IN:
Materials: Aluminum, Brass, Steel
Bore Size: 0.1248 in. (3mm) - 0.8750 in. (16mm)
Outer Diameter: 0.50 in. (12.7mm) - 3.00 in. (76.2mm)
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 making a selection, please call our engineering group.
PRECISION MAGNETIC CLUTCHES & COUPLINGS:

PRECISION UNIDIRECTIONAL ROLLER CLUTCHES:

AVAILABLE IN:
Bore Size: 0.125 in. (4mm) - 0.750 in. (35mm)
Outer Diameter: 0.28125 in. (8mm)- 1.00000 in. (42mm)
Width: 0.250 in. (6mm) - 1.000 in. (30mm)
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.
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 MAGNETIC PARTICLE BRAKES:

AVAILABLE IN:
Voltage: 24 V dc
Torque Range: .06 - 115 lbf in.
Length: 2.10 - 5.53 in.
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 SHAFT-MOUNTED CLUTCH COUPLINGS:

AVAILABLE IN:
Voltage: 24 V dc
Static Torque: 5 - 80 lb-in.
Bore Size: 0.25 in. - 0.50 in.
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 POWER OFF SERVO BRAKES:

AVAILABLE IN:
Voltage: 24 V dc
Static Torque: 5 lbin. (0.56 N•m) - 80 lbin. (9.04 N•m)
Length: 1.18 in. (30mm) - 1.45 in. (41.9mm)
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 MAGNETIC PARTICLE BRAKES & CLUTCHES:

AVAILABLE IN:
Torque: 0.06 in. - 35.00 in.
Max Speed: 200 - 2,000 rpm
Magnetic Particle Brakes and Clutches are ideal for tension control applications and high cycle applications such as labling machines for the food and drug industries. Their operating torque range is broad and can be accurately controlled.
PRECISION FLANGE MOUNTED POWER OFF BRAKES:

AVAILABLE IN:
Voltage: 24 V dc
Static Torque: 5 lb-in. (0.565 N•m) - 80 lb-in. (9.039 N•m)
Bore Size: 0.25 in. (6mm) - 5.00 in. (12mm)
Power-On Flange Mounted Brakes are anti-backlash when energized and zero drag when den-energized. Both inch and metric sizes are offered. 24V DC is standard with other voltages available on special order.
COMMERCIAL SPRING WRAPPED SLIP-TYPE CLUTCHES:

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