Spring Engaged Brakes – NEMA Frame

Spring Engaged Brakes – NEMA Frame

Flange Mounted Friction Brakes for Power Off Holding

Function: Holding, Failsafe (Non-Cycling Applications)
Drive Arrangement: Machine Frame or Bracket to Shaft

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Download Product Manual

Operation

  • Spring pressure compresses drive and friction discs to produce a fixed amount of torque.
  • The brake is released when energized with sufficient air pressure (see table below).

Mounting

  • Brake is designed to mount between a c-face motor and gear reducer.
  • Not suitable for belt or chain drive (pulley or sprocket output) configurations.
  • Brake is designed for horizontal mounting. If vertical mounting is required, consult engineering.

Applications

  • Spring engaged brakes are designed for holding applications.
  • Maximum RPM varies by model and is listed on the PDF detail sheet (see table below). Consult engineering if the intended application exceeds the listed maximum RPM.

Design Features

  • Models listed have enclosed, aluminum housings.
  • Clear anodized and stainless housing versions are also available. Contact engineering for details.

Customization Options

All Mach III products can be customized to meet the needs of your application.

Resources

Product Code Torque Brake Release Pressure NEMA Frame Size Output Shaft & Input Bore Detail Sheet Request 3D CAD Model
D2C2R-42H 73 lb-in 60-65 PSI 42C 0.375 in
D2C2R-48H 73 lb-in 60-65 PSI 48C 0.500 in
D3C2F-34H 59 lb-in 60-65 PSI 34C 0.500 in
D3C3R-56H 222 lb-in 60-65 PSI 56C 0.625 in
D3C3R-14H 222 lb-in 60-65 PSI 143TC, 145TC 0.875 in
D5C3R-18H 985 lb-in 60-65 PSI 182TC, 184TC 1.125 in
D5C3R-21H 985 lb-in 60-65 PSI 213TC, 215TC 1.375 in
D8C2K-28H 2,367 lb-in 70-75 PSI 284TC, 286TC 1.875 in