Miniature Spring Engaged Brake
MINIATURE SERIES
MINIATURE BRAKES, CLUTCHES AND TORQUE LIMITERS
Motion Control Solutions for Tight Spaces, Small Shafts and Light Torque Requirements.
For torque requirements of less than 200 Pound Inches.
For shaft sizes 0.3125 to 0.500 Inch, or 7 to 12mm.
Can be fitted at the factory with pulleys, sprockets or special couplings
Available with sealed housings, and made from corrosion resistant and food grade materials.
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
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.
|
Product Code |
Torque |
Brake Release Pressure |
Maximum Bore with Standard Keyway |
Detail Sheet |
|
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) |
