D3F3R-STH

D3F3R-STH

D3F3R-STH

Product catalog summary
Product Specifications
The D3F3R-STH is a spring-applied brake with a flange mount. It engages and disengages using spring and air mechanisms. The brake features a high coefficient facing type and offers a dynamic torque of 222 pound-inches. The minimum disengagement pressure is 53 PSI, while the maximum operating pressure is 80 PSI. It can operate at a maximum of 1,750 RPM. The bore range with a standard keyway is between 0.500 to 0.875 inches. The air volume is 0.07 cubic inches when new and 0.22 cubic inches when worn. The brake is made of aluminum and has an open construction with a mounting bolt circle of 4.375 inches. The shipping weight is 4 pounds.
Torque vs. Air Pressure
New clutch or brake torque is approximately 40% less 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 not to select a product for continuous duty at its maximum rated torque.
Product Selection
Torque capacity is only one factor in product selection. It is recommended to contact the engineering department for application review and selection assistance to ensure the right product is chosen for the job.
Parts Kits
Repair kits containing common wear items are available. Users should stock repair kits based on the number of units installed and the critical nature of the machinery. For pricing and lead time, contact customer service.
Additional Product Information
Installation and maintenance manuals, as well as application information, are available online. Contact details for engineering and customer service are provided for further assistance.
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Catalog excerpts

D3F3R-STH-1

Flange Mount D3F3R-STH Engagement/Disengagement Spring/Air Facing Type High Coefficient Torque - Dynamic 222 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

 Open the catalog to page 1
D3F3R-STH-2

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...

 Open the catalog to page 2

Archived catalogs

  1. D2F3R-STH

    2  Pages

  2. D3F3R-STL

    2  Pages

  3. DAF3K-STL

    2  Pages

  4. D8F3K-STH

    2  Pages

  5. D4F3R-STH

    2  Pages

  6. D2F3R-STH

    2  Pages

  7. D6F3G-STH

    2  Pages

  8. DAF3K-STH

    2  Pages

  9. D5F3R-STH

    2  Pages

  10. D3F3R-STH

    2  Pages

  11. D2C2R-42H

    2  Pages

  12. C2H2R-STH

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.