Spring Engaged Brakes

Spring Engaged Brakes

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 releases when energized with sufficient air pressure (see table below).

Mounting

  • The brake flange bolts to a machine frame or other fixture, the shaft inserts into the bore and is fixed with a customer supplied key.
  • Brake can also be mounted mid-shaft with the flange connected to a bracket.
  • Spring engaged brakes are 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. Please consult the detail sheets (below). Consult engineering if the intended application exceeds the listed maximum RPM.

Design Features

  • Spring engaged brakes are made-to-order with any bore size up to the maximum shown for easy installation.
  • Drilled and slotted flange allows for variable installation arrangements.
  • Low coefficient friction lining versions are available for applications requiring slip or a narrower torque range. 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 Maximum Bore with Standard Keyway Detail Sheet Request 3D CAD Model
D2F3R-STH 91 lb-in 60 PSI 0.500 in (12 mm)
D3F3R-STH 222 lb-in 60-65 PSI 0.875 in (21 mm)
D4F3R-STH 497 lb-in 60-65 PSI 1.125 in (28 mm)
D5F3R-STH 985 lb-in 60-65 PSI 1.438 in (38 mm)
D6F3G-STH 2,296 lb-in 60-65 PSI 2.000 in (52 mm)
D8F3K-STH 4,326 lb-in 60-65 PSI 2.375 in (66 mm)
DAF3K-STH 8,775 lb-in 60-65 PSI 2.750 in (72 mm)