Brakes, Clutches & Couplings

Brakes, clutches, and couplings manage torque transfer between rotating shafts in a motion system. A brake stops or holds a single shaft. A clutch connects and disconnects two shafts. A coupling joins two shafts to transmit torque continuously. It also absorbs misalignment between the shafts.

Not every brake or clutch is electromagnetic. Permanent-magnet brakes hold without continuous power. Tooth clutches engage through mechanical teeth, not friction. Magnetic particle and hysteresis types use coil current to produce torque proportional to that current, rather than simple on/off engagement.

Electromate supplies industrial brakes, industrial clutches, and servo couplings from Inertia Dynamics, Ogura Clutch, and GAM Enterprises. Standard configurations are available for direct purchase. Custom torque ratings, bore sizes, and mounting styles are available by quote.


Industrial Brakes

Industrial brakes stop, hold, or control the motion of a rotating load. Electromate carries five brake types.

  • Power-off (spring-applied) brakes engage when power is removed. Internal springs supply the clamping force. This makes them fail-safe for vertical axes, servo motor holding, and E-stop functions.
  • Power-on electromagnetic brakes engage when voltage is applied. They are used for dynamic stopping during active machine operation, not as a fail-safe device.
  • Permanent-magnet brakes hold with a fixed magnet and need no continuous power. A DC voltage releases them. They suit light positioning equipment and low-power tension drag.
  • Magnetic particle brakes and hysteresis brakes apply torque proportional to coil current. They are used for continuous-slip tension control and test-stand applications.

Industrial Clutches

Industrial clutches connect or disconnect two shafts to transmit, interrupt, or control torque between them. Electromate carries five clutch types.

  • Electromagnetic clutches engage through friction contact when DC voltage is applied. This is the general-purpose category, with the widest torque range and largest number of configurations.
  • Tooth clutches engage through interlocking mechanical teeth, not friction. This gives zero-slip, zero-backlash positive engagement with no dependency on friction force.
  • Multiple-disc clutches stack several friction discs. This raises torque density within a compact outer diameter.
  • Magnetic particle clutches and hysteresis clutches transmit torque proportional to current, independent of slip speed. They are used for tension control and test-stand applications.

Servo Couplings

Servo couplings join two shafts so they rotate together. They also absorb axial, angular, and radial misalignment. Bellows couplings offer zero backlash and the highest torsional stiffness. They suit dynamic servo loads. Elastomer couplings cost less than bellows couplings. They still run zero-backlash and dampen vibration. Safety couplings disengage at a set torque to protect the drivetrain during a collision. They re-engage automatically afterward.

Electromate carries bellows, elastomer, and safety couplings. These come in direct-drive and indirect-drive configurations. Torque ratings go up to 9,000 Nm.


Brakes / Clutch / Coupling Products for Quote & Purchase:

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EDC Series Elastomer Distance Coupling by Gam Enterprises

EDC Series Elastomer Distance Coupling

Drive shaft couplings with split hubs and customizable lengths up to 6 meters. Designed for flexible shaft connections in automation systems.

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SKB Series Indirect Drive Safety Couplings by Gam Enterprises

SKB Series Indirect Drive Safety Couplings

Safety couplings with adjustable torque and automatic re-engagement. Designed for indirect drives using pulleys, gears, or sprockets.

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SKB-EK Series Direct Drive Safety Couplings by Gam Enterprises

SKB-EK Series Direct Drive Safety Couplings

Direct drive safety couplings with elastomer connection, adjustable torque settings, and automatic re-engagement for servo applications.

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SKB-KP Series Direct Drive Bellows Safety Couplings by Gam Enterprises

SKB-KP Series Direct Drive Bellows Safety Couplings

Direct drive safety couplings with bellows connection, adjustable torque settings, and automatic re-engagement for precision applications.

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SKG Series Indirect Drive Safety Couplings by Gam Enterprises

SKG Series Indirect Drive Safety Couplings

Indirect‑drive safety couplings with conical clamp hubs and integrated bearings for pulleys, gears, and sprockets. Torque range up to 550 Nm.

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SKW Series Indirect-Drive Safety Couplings by Gam Enterprises

SKW Series Indirect-Drive Safety Couplings

Indirect-drive safety couplings with keyed hubs, adjustable torque settings, and integrated bearings for pulleys, gears, and sprockets.

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SKW‑KP Series Indirect‑Drive Bellows Safety Couplings by Gam Enterprises

SKW‑KP Series Indirect‑Drive Bellows Safety Couplings

Indirect‑drive bellows safety couplings with torque settings up to 9,000 Nm, keyed bore hubs, and automatic re‑engagement.

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SKX‑L Series Indirect‑Drive Safety Couplings by Gam Enterprises

SKX‑L Series Indirect‑Drive Safety Couplings

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MMC Series Electromagnetic Clutches by Ogura Clutch

MMC Series Electromagnetic Clutches

Torque Range: 37–1475 ft-lbs | Max RPM: 1600–4000 | Bore: 25–80 mm | 12/24 VDC heavy-duty electromagnetic clutch

$940.00
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AMC Series Electromagnetic Clutches by Ogura Clutch

AMC Series Electromagnetic Clutches

Torque Range: 2–70 in-lbs / 0.25–8 Nm | Max RPM: up to 3600 | Bore: 6–15 mm | 24 VDC zero backlash electromagnetic clutch

$175.00
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VC Series Electromagnetic Clutches by Ogura Clutch

VC Series Electromagnetic Clutches

Torque Range: 5.1-150 ft-lbs | Max RPM: up to 7000 | Bore: 8–20 mm | 24 VDC compact electromagnetic clutch

$433.00
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MSC-T Series Single Disc Electromagnetic Clutches by Ogura Clutch

MSC-T Series Single Disc Electromagnetic Clutches

Torque Range: 9–738 ft-lbs | Max RPM: 1800–5500 | Bore: 15–70 mm | 24 VDC single disc electromagnetic clutch

$654.00
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MZ Series Electromagnetic Tooth Clutches by Ogura Clutch

MZ Series Electromagnetic Tooth Clutches

Torque Range: 18.5–2899 ft-lbs | Max RPM: 1400–5000 | Bore: 20–100 mm | 24 VDC electromagnetic tooth clutch

$1,424.00
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MZS Series Electromagnetic Single-Position Tooth Clutches by Ogura Clutch

MZS Series Electromagnetic Single-Position Tooth Clutches

Torque Range: 18.5–181 ft-lbs | Max RPM: 3200–5000 | Bore: 20–40 mm | 24 VDC single-position tooth clutch

$1,507.00
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MWC Series Electromagnetic Multiple-Disk Clutches by Ogura Clutch

MWC Series Electromagnetic Multiple-Disk Clutches

Torque Range: 18–8850 ft-lbs | Max RPM: 900–4000 | Bore: 20–140 mm | 24 VDC multiple-disk electromagnetic clutch

$1,100.00
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Comparison Table

Component Primary Function Engagement Types Available Typical Torque Range Typical Application
Brakes Stop or hold one shaft Power-off (spring), power-on electromagnetic, permanent-magnet, magnetic particle, hysteresis Fractional in-lbs to 74+ ft-lbs Servo holding, fail-safe stop, tension control, test stands
Clutches Connect/disconnect two shafts Electromagnetic (friction), tooth (positive), multiple-disc, magnetic particle, hysteresis Fractional in-lbs to 1,475 ft-lbs Shaft coupling, precise synchronization, tension control, test stands
Couplings Join two shafts to transmit torque continuously Bellows, elastomer, safety — mechanical, not electromagnetic Up to 9,000 Nm Servo shaft-to-shaft connection, collision protection