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Disc Couplings
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Disc Couplings from Ruland

 
 

About

Single and double disc couplingsRuland manufactures disc couplings in single disc and double disc styles with bores in inch, metric, and inch to metric combinations ranging from 1/8” (3mm) to 1 1/4" (32mm). Disc couplings are torsionally rigid, have low inertia, and operate with zero-backlash making them ideal for precise positioning systems in industries such as test and measurement, semiconductor, solar, and printing.

Disc couplings from Ruland are a simple assembly with few moving parts reducing the risk for coupling failure and backlash.  They utilize thin stainless steel disc springs that allow for a substantial amount of shaft misalignment while remaining rigid under torsional loads.  Disc couplings feature a balanced design allowing for smooth operation at speeds up to 10,000 rpm.  Screws are used to mount the disc springs, as opposed to rivets, to maintain constant zero-backlash performance.

Single disc couplings are comprised of two anodized aluminum hubs and multiple flat stainless steel disc springs.  They are not adept at accommodating parallel misalignment due to the complex bending of the disc that would be required.  The single disc coupling is best suited for applications with space restrictions that require precise positioning.

Double disc couplings consist of two anodized aluminum hubs, two sets of multiple flat stainless steel disc springs, and a center spacer. This design allows each disc set to bend individually to accommodate all types of misalignment including parallel. Center spacers are available in anodized aluminum or insulating acetal for electrical isolation.

Learn more about how to choose servo couplings for your particular application from a Ruland expert. Read "What to Look for in a Servo Coupling" written by William Hewitson, Vice President of Operations.

Why Ruland

    Ruland Disc Couplings: Aluminum Hubs with Stainless Steel Disc Springs
  • Available in single disc style for a compact design or double disc style for higher misalignment capabilities.
  • Anodized aluminum hubs for low inertia.
  • Balanced design for reduce vibration and support of higher rpm.
  • Screws are used to mount the disc springs, as opposed to rivets, to maintain consistent zero backlash performance.
  • Special designs available for customized torque and misalignment capabilities.
  • Inch, metric, and inch to metric bores with or without keyways available from stock.
  • Thin stainless steel disc springs provide for long life and accommodate large amounts of misalignment.
  • Center spacers on double disc couplings are available in anodized aluminum for increased torque capacity or insulating acetal for electrical isolation.

E-Catalog

DCD Disc Coupling
DCD Double Disc
Inch Dimensions
Clamp Style
DCDK Disc Coupling
DCDK Double Disc
Inch with Keyways
Clamp Style
DCD Disc Coupling
MDCD Double Disc
Metric Dimensions
Clamp Style
DCDK Disc Coupling
MDCDK Double Disc
Metric with Keyways
Clamp Style
DSD Disc Coupling
DSD Double Disc
Inch Dimensions
Set Screw
DSDK Disc Coupling
DSDK Double Disc
Inch with Keyways
Set Screw
MDSD Disc Coupling
MDSD Double Disc
Metric Dimensions
Set Screw
MDSDK Disc Coupling
MDSDK Double Disc
Metric with Keyways
Set Screw
DCS Disc Coupling
DCS Single Disc
Inch Dimensions
Clamp Style
DCSK Disc Coupling
DCSK Single Disc
Inch with Keyways
Clamp Style
MDCS Disc Coupling
MDCS Single Disc
Metric Dimensions
Clamp Style
MDCSK Disc Coupling
MDCSK Single Disc
Metric with Keyways
Clamp Style
DSS Disc Coupling
DSS Single Disc
Inch Dimensions
Set Screw
DSSK Disc Coupling
DSSK Single Disc
Inch with Keyways
Set Screw
MDSS Disc Coupling
MDSS Single Disc
Metric Dimensions
Set Screw
MDSSK Disc Coupling
MDSSK Single Disc
Metric with Keyways
Set Screw
DCDE Disc Coupling
DCDE Double Disc
Electrically Isolating
Inch Dimensions
Clamp Style
MDCDE Disc Coupling
MDCDE Double Disc
Electrically Isolating
Metric Dimensions
Clamp Style
DSDE Disc Coupling
DSDE Double Disc
Electrically Isolating
Inch Dimensions
Set Screw
MDSDE Disc Coupling
MDSDE Double Disc
Electrically Isolating
Metric Dimensions
Set Screw
Inch to Metric Disc Coupling
Double Disc Coupling
Inch to Metric Bores

Inch to Metric Dimensions
Clamp and Set Screw
With or without Keyways
Inch to Metric Disc Coupling
Single Disc Coupling
Inch to Metric Bores

Inch to Metric Dimensions
Clamp and Set Screw
With or without Keyways
   

Custom Designs

Custom Disc CouplingAs a service to our customers, we offer our vast machining experience and talents to meet special needs with custom parts. Our shop is equipped with the machines and skilled people necessary to fill all of your special requirements. If you don't see what you are looking for in our standard line, please inquire about our custom fabrication service.

Examples of Past Specials:

  • Stainless steel disc coupling
  • Extra disc springs for stiffness
  • Extended length of center spacer
  • Special bore sizes and geometry
  • Special lengths, widths and outside diameters
  • Special material and hardware requests
  • And Many Others... Please Contact Us for More Information

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Double Disc Coupling

Electrically Isolating
Disc Coupling

Single Disc Coupling