This mechanical friction torque limiter was created in response to a customer’s request for a slip clutch with a 3180 pound inch setting and a 44L100 pilot mounted pulley. The first challenge of this application was that the outside diameter of the torque limiter could not exceed the diameter of the pulley. Mach III designed this unit with eight friction surfaces to deliver the required torque within the diameter restriction.
The second challenge was that the unit had to fit on a 1.25 Inch shaft. The design could accommodate a 1.25 inch bore, but there was no room for a keyway. Mach III extended the drive hub and fitted it with a locking collar to connect the torque limiter to the shaft.
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The application for this spring actuated holding brake required a minimum 3,300 lb-in torque capacity. Our engineers first recommended the Mach III catalog D8F3K-STH, however, the machine design could not accommodate the 11.75 inch flange diameter of this standard model.
To accomodate the radial space constriction, Mach III used the D6F3G-STH brake as a base and incorporated additional friction surfaces. The result was a brake with 4,405 pound inches of holding torque within a 9.53 inch diameter.
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Developed as a retrofit replacement for a tooth clutch, this compact air actuated friction clutch provides . . .
- 208 pound inches torque @ 80 PSI
- 4.49 inches overall length
- 1.0 inch bore
- Double-single 60A19 sprockets
- Enclosed construction
. . . and unlike a tooth clutch, it provides a soft start and can be engaged dynamically at higher speeds.
This clutch is designed for use in a chain driven live roller conveyor.
A departure from Mach III’s typical housing geometry and shaft mounted designs, these spring applied – air released puck brakes were developed for a manufacturer of web finishing and processing equipment.
- 194 pounds force at 0.25” clamp
- 85 – 90 PSI full release
- Dimensions 2.0” x 2.0” x 2.812”
So, if you did not see anything on this website that looks like what you need, it does not mean that Mach III cannot or has not manufactured it. To date, Mach III has designed and manufactured more than 2000 custom designs.
The brake pictured is designed for a machine that requires a slip brake to maintain tension on spool of transformer wire but has a very narrow envelope in which to accommodate it.
- Torque Capacity: 575 Pound Inches @ 80 PSI
- Overall Length: 1.74 Inches, Outside Diameter: 7.25 Inches
- Bore Size: 1.5 Inches
- Vented top plate dissipates heat generated by constant slip.
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