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- Mach III Clutch, Inc.
- D3F3R-STL
D3F3R-STL
D3F3R-STL
The D3F3R-STL is a spring-applied brake with a flange mount, designed for engagement and disengagement using spring and air mechanisms. It features a low coefficient facing type and offers a dynamic torque of 148 pound-inches. The brake requires a minimum disengagement pressure of 53 PSI and can operate at a maximum pressure of 80 PSI. It supports a maximum RPM of 1,750 and accommodates a bore range with a standard keyway from 0.500 to 0.875 inches. The brake is constructed from aluminum and has an open design, with a mounting bolt circle of 4.375 inches and a shipping weight of 4 pounds.
New clutches or brakes exhibit approximately 40% less torque than the rated design torque until the friction and drive discs are worn in. The wear-in period varies by application. It is advised to use a service factor of 1.5 to 2 when calculating required torque and to avoid selecting a product for continuous duty at its maximum rated torque.
Torque capacity is one of several factors to consider when selecting a product. It is recommended to consult the engineering department for application review and selection assistance to ensure the right product is chosen for the job.
A repair kit containing common wear items is available, and users are encouraged to stock these kits to minimize downtime, especially if the machinery is critical. For pricing and lead time, contact customer service.
For further details, including the installation and maintenance manual, visit the provided links or contact Mach III's engineering department.
Catalog excerpts
Flange Mount D3F3R-STL Engagement/Disengagement Spring/Air Facing Type Low Coefficient Torque - Dynamic 148 Pound Inches Minimum Disengagement Pressure 53 PSI Maximum Operating Pressure 80 PSI Maximum RPM 1,750 Bore Range with Standard Keyway 0.500 (13) to 0.875 (21) Inches (mm) Air Volume New 0.07 Cubic Inches Air Volume Worn 0.22 Cubic Inches Finish Aluminum Open or Enclosed Construction Open Mounting Bolt Circle 4.375 Inches Shipping Weight 4 Pounds TORQUE vs. AIR PRESSURE NEW vs. BURNISHED TORQUE New clutch or brake torque is approximately 40% less than rated design torque until the friction and drive discs are worn in (lapped, burnished). The length of time for wear-in to occur varies by application. When calculating required torque always use a service factor of 1.5 to 2. It is not recommended to select a product for use at its maximum rated torque for continuous duty. PRODUCT SELECTION Torque capacity is only one factor to consider when making a product selection. Insure that you will have right product for the job by contacting our engineering department for application review and selection assistance. ®AOtlll 859-291-0849 [email protected] www.machiii.com
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PARTS KITS ADDITIONAL PRODUCT INFORMATION The Repair Kit contains common wear items for this product. Users are encouraged to stock one or more repair kits considering the number of units installed and the potential downtime if machinery on which the unit is installed is critical equipment. To obtain current pricing and lead time for parts kits, contact customer service. Click on the links below or copy and paste into your web browser. To view the Installation & Maintenance Manual for this product: http://machiii.com/PDF/ProductManuals/BRAKES_FLANGE_SPRING_MANUAL.pdf For information about the...
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