Mach III Clutch Inc. | Applications


Wash Down Clutch With a Lead Time That Saved The Day

clock February 11, 2016 06:35 by author Mach III Clutch

C5A3K-001A food processing equipment manufacturer received an unexpected and unpleasant piece of news when they tried to purchase the nickel plated jaw tooth clutch they had designed into a new machine, a 16 week lead time!  Needing a 5 week lead time to meet the delivery date required by their customer, the manufacturer contacted us.  Did Mach III have a clutch that was equivalent?  Could we deliver in 5 weeks?  After reviewing the application and coordinating with production, our engineering team said, "Yes."

Our designers even found a way to expedite installation by incorporating an adapter so the clutch could be directly connected to the Lovejoy L150 elastomeric spider coupling used in the machine design.

The base for this design is the C5A2K-STH catalog model. For corrosion resistance, the unit is sealed and all exposed components are made from stainless steel and aluminum. This clutch is a prime example of the quick customization available from Mach III.  

View The Spec Sheet 

Heavy Duty End of Shaft Clutch With Integral Pulley

clock March 25, 2014 10:23 by author Mach III Clutch

x-defaultThis air actuated friction clutch is a customized version of the Mach III C6D3K-STH.

  • 7,405 lb.-in. Torque @ 80 PSI
  • 2.125 Inch Bore with Standard Keyway
  • Integral 6-5V Groove Pulley
  • 0.25” NPT Rotary Air Union
  • Enclosed Construction

View Spec Sheet

Conveyor Clutches Last A Long Time When Properly Applied

clock July 29, 2013 15:33 by author Mach III Clutch

MachIII_5004_1986Returned to Mach III for factory repair, the letters “JHG” were stamped in the housing of this multiple disc friction clutch which is used on an accumulating conveyor.  Under Mach III’s former date coding standard, this means the clutch was manufactured in October, 1987 – 28 years ago!

Designed for use at low air pressure to minimize wear, this clutch provides 2,300 pound inches of torque at just 30PSI and  includes integral 60A21 and 60B21 sprockets.  Mach III also produces combination clutch-brakes with integral double-single sprockets for chain driven live roller conveyor applications requiring a controlled stop to prevent drift of product, pallets or containers.


clock July 12, 2013 05:15 by author Mach III Clutch

NEMA COUPLING CLUTCHMach III’s catalog model NEMA Frame clutches have a female input bore and male output shaft and are designed for coupling motors and gearboxes.  But what do you do when you need to couple two components with output shafts, one metric and one imperial?  Insert a custom designed Mach III clutch with NEMA housing that has a female input on both sides.

Specifications for Product No. C3C2R-002:

  • Torque Rating = 573 @ 80 PSI
  • NEMA Frame Size = 143T/145T
  • Input Bore = 0.875 Inch with Standard Keyway
  • Output Bore = 32mm with Standard Keyway

View the Spec Sheet

Mach III’s custom designs can accommodate a variety of torque and special mounting requirements.  Click below to see other examples:

Imperial to Metric Servo Brake

Torque Limiter with Off-Center Mounting Flanges

End of Shaft Mount Clutches With Integral V-Belt Pulleys

clock May 28, 2013 02:38 by author Mach III Clutch

Mach III Sheave ClutchesMach III offers all-in-one, easy to install solutions to your clutch needs. One example is our ability to adapt our heavy duty end of shaft mount air engaged friction clutches to accommodate the exact v-belt pulley required by our customers. Clockwise from top left:

  • (4) 5V Groove Pulley
  • (6) 5V Groove Pulley
  • (4) 3V Groove Pulley
  • (2) B Groove Pulley

Connect with Mach III engineering to discuss your application.  

Sealed Clutch With Output Flange For Heavy Wash Down

clock March 11, 2013 14:58 by author Mach III Clutch

A pair of these clutches drive vertically mounted brushes which scrub the sides of a vehicle in an automatic car wash. This clutch had to fill two requirements: (1) operate in an environment where exposure to both water and detergent is constant and (2) support the brush assembly. Mach III Sealed Clutch with Custom Output Flange Below are the special features incorporated into this design:

  • Enclosed, sealed aluminum housing
  • Grease packed under top oil seal and inside the flange housing to prevent water seepage
  • Port in housing for vent tube.  Ventilation prevents the clutch from acting as a pump and drawing water into itself during disengagement.
  • Custom output flange

View Spec Sheet

Ultra Compact Friction Clutch With Double-Single Sprockets

clock January 21, 2013 18:00 by author Mach III Clutch

C3D1Q-001Developed 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.

Clutch with Elongated Pilot Provides Proper Pulley Support

clock December 5, 2012 13:01 by author Mach III Clutch

For this low speed application, a Mach III end of shaft mounted clutch with a bronze bushing pilot was required.  The pulley the customer intended to use, however, was too wide for the pilot of the catalog model clutch and would have resulted in an overhung load.  Operating a clutch with an overhung load will cause uneven and premature wear and may result in the clutch “walking” off the shaft. 

Overhung Load

To accommodate the pulley, Mach III produced the pictured clutch which is similar to the catalog model only with an elongated pilot.  The elongated pilot provides proper support for the pulley by centering it over the bronze bushing.  For guidance on proper attachment of sprockets and pulleys, download our eBook:  Mounting Sprockets and Pulleys on Pilot Style Clutches

High Torque Clutches for Low Pressure Operation

clock November 15, 2012 06:02 by author Mach III Clutch

Used on chain driven live roller conveyors (CDLR), these multi-disc air clutches offer a large amount of torque in a small package. They are designed for operation at low pressure (30 PSI) to maximize wear life and facilitate quick installation with push-in air fitting connections.

3 Inch Model:  362 Pound Inches @ 30 PSI, 0.75 Inch Bore, 40A20 Sprockets, 5.76 Inches Long x 3.5 Inches Diameter

4 Inch Model1191 Pound Inches @ 30 PSI, 1.0 Inch Bore, 50A20 Sprockets, 6.73 Inches Long x 4.5 Inches Diameter

5 Inch Model:  2,300 Pound Inches @ 30 PSI, 1.4375 Inch Bore, 60A21 Sprockets, 7.31 Inches Long x 5.73 Inches Diameter

Submit your accumulating conveyor application information using our online form,

or contact our engineering department to discuss your needs.

Coupling Clutch For Keyless Locking Device Connection

clock July 12, 2012 10:15 by author Mach III Clutch

Mach III offers a variety of catalog models for shaft-to-shaft coupling.  Those catalog models provide shaft attachment with a keyway and set screw. 

For this application, the customer wanted to attach the coupling half to the shaft using a keyless frictional locking device.  Mach III outfitted a catalog model through shaft pilot mount clutch, C5A2R-STH, with a custom designed coupling. 

Keyless Frictional Locking Device

Would a custom design make your assembly process easier? Mach III has custom adapters and couplings options for many catalog models. 


Custom Design Solutions: Pilot Mounted Sheaves

clock June 4, 2012 12:33 by author Mach III Clutch

Friction clutches from Mach III Clutch, Inc. can be shipped complete with a pilot mounted sheave. In some cases, the sheave is manufactured by Mach III and fitted onto a catalog unit. In other cases, the length or diameter of the sheave may require modification of the unit to provide the proper support. Below are examples of each.C8D3K-STH--C8A2K-STH-P025-003_thumb2


The customer who purchased this C8D3K-STH heavy duty, end of shaft mounted friction clutch required a 15 Inch O.D. 3-5V groove sheave on the pilot. Mach III manufactured both the clutch and sheave and shipped the complete assembly within four weeks.




The customer who purchased this unit needed something similar to the catalog model C6D3K-STH, but with a 7.0 Inch diameter, 4-5V groove sheave which was too long and too small a diameter to fit on the pilot of the standard model. Mach III modified the catalog design by lengthening the unit and making the sheave an integral component mounted on bearings directly on the drive hub.


In addition to providing the required sheave, Mach III offers every catalog product with a range of bore and keyway sizes so customers are not required to modify their shaft or use bushings to obtain the correct fit. Also shipped with a rotary air fitting, these clutches are both out-of-the-box ready for quick installation.

Contact our engineering department to discuss your pulley, sprocket or sheave requirements. Click Here for contact links.

Custom Design Solutions: Special Adapter & Torque Requirement

clock June 1, 2012 14:12 by author Mach III Clutch

Mach III frequently modifies catalog products to accommodate mounting and torque capacity requirements.  Here is an example:

M5R2K-STHCatalog Model:  MBR2K-STH

  • Double Disc, Air Actuated Heavy Duty Friction Clutch Mechanism
  • Torque Rating:  21,200 pound inches @ 80 PSI
  • Mechanism Bore:  Any size specified by customer to 3.5 Inch Maximum with Standard Keyway
  • Standard Adapter with 8.563 Inch Bolt Circle
  • Lead Time:  4 Weeks


Custom Model:  MBR3K-001

  • Triple Disc, Air Actuated Heavy Duty Friction Clutch Mechanism
  • Torque Rating:  31,800 pound inches @ 80 PSI
  • Mechanism Bore: 2-15/16 Inch with Standard Keyway
  • Custom Flange Adapter with 14.0 Inch Bolt Circle
  • Lead Time: 5 weeks

Contact our engineering department to start working on a custom design solution for your application. 

Conway 858-14 Stationaire Clutch Mechanism Replacement

clock November 15, 2011 13:56 by author Mach III Clutch


Motion Industries contacted Mach III Clutch searching for a replacement for a Conway 858-14 Stationaire Clutch Mechanism sought by a paper mill.  The original clutch and adapter are underneath the guard in the picture on the right.  After reviewing the application along with photographs and drawings provided by the customer, Mach III designed the MBR3K-001.  An eleven inch friction diameter clutch with a 2.9375 Inch bore, the MBR3K-001 assembly (pictured below) includes both the clutch mechanism and a custom adapter flange.   The design is a variation of Mach III’s catalog model Heavy Duty Clutch Mechanism.  Mach III frequently adapts catalog models to match the specifications and mounting requirements of the application.  Lead times for such customization are typically only a week longer than for catalog products.

Mach III has assisted a number of customers seeking items no longer available from Conway Clutch.  While it is helpful to know the model number of the current Conway unit, it is more important to understand how the clutch is mounted and the function it is required to perform.  Digital photos or a sketch of the clutch and how it relates to the existing drive train are particularly useful.  For assistance replacing a Conway clutch or with any retrofit application, contact Mach III’s engineering department.

Replacements for Conway Clutch Units

clock October 1, 2011 12:32 by author Mach III Clutch

Trying to find a replacement for a Conway Clutch product that is no longer manufactured?  Mach III Clutch can provide a solution that fits your current application and mounting requirements. Mach III catalog standard clutches displayed on this website are similar in design and function to Conway Clutches but are not typically suited for direct replacement without some modification.

Our engineering department will be glad to assist you with a replacement solution. While it is helpful to know the current Conway Clutch model number, it is also important that we understand how the clutch is mounted and the function it is performing.  Digital photographs of clutch and how it relates the existing drive are also useful.

Examples of Conway Replacements:

Conway 858 Series Clutch/Brake Combination

Conway 858-14 Stationaire Clutch

Spring Set Clutches Used In Universal Studios Attraction

clock February 8, 2011 16:37 by author Mach III Clutch

The Lights Camera Action attraction at Universal Studios Singapore provides visitors the experience of being on a film-production soundstage. The soundstage is set to simulate the scene from inside a waterfront boathouse in New York City during a category 5 hurricane. Visitors experience a scene filled with wind, rain, explosions, fire, and objects falling from the ceiling. Mach III clutches were used in the drive system that allowed elements of the scene (boats and steel girders) to free-fall into the water during the performance and then be quickly reset to their original positions before the arrival of the next visitors.

Skip ahead to 2:30 minutes to see the falling elements.

The elements which fall during the performance are suspended by cables. The cables are attached to winches that are driven by Mach III clutches. Spring engaged-air release clutches were selected based on the functional requirements. Since the clutches are spring applied, they remain engaged in the absence of air pressure. While a braking system assures that the winches are held in place, the engaged clutches provide redundancy. When the brake is released, air is simultaneously applied to the clutch to release it. The winch drums are then freed and the suspended element comes splashing down into the water. Mach III Spring Set Clutch

Click Here for specs on the Mach III E8D3K-STH and EBD4K-STH clutches used in this application.

Conway 858 Series Clutch/Brake Combination Replacement

clock October 30, 2009 13:28 by author Mach III Clutch

The photograph below shows a pair of Conway 858 series clutch mechanisms used on a Norton Hyprolap lapping machine.  Both units are mounted on a common shaft with one acting as a brake and the other as a clutch.  Due to the design of the machine, diameter and length were very limited.  To provide a drop-in replacement, Mach III created the M5R2K-001 clutch mechanism (link to drawing below) by combining the catalog-standard M5R2K-STH clutch mechanism with a custom designed adapter.  The pair cost the owner of this machine less than $2,000.00 USD and saved the additional expense of machine modification.

Mach III has assisted a number of customers seeking items no longer available from Conway Clutch.  While it is helpful to know the model number of the current Conway unit, it is more important to understand how the clutch is mounted and the function it is required to perform.  Digital photos like those on the right or a sketch of the clutch and how it relates to the existing drive train are extremely useful.  Contact Mach III for assistance replacing a Conway clutch or with any retrofit application.



M5R2K-001 OUTLINE ASSEMBLY.pdf (175.09 kb)

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