Jaw couplings for start-stop applications from Ruland

Ruland launches its zero-backlash jaw couplings, a three-piece assembly designed to accommodate high acceleration and deceleration curves that result in peak torque.

Jaw couplings are ideal for systems that experience hard starts, hard stops, or reversals, including in medical, semiconductor, test and measurement, and robotics applications. Ruland’s balanced jaw coupling design consists of two hubs and an elastomeric insert known as ‘the spider’. The hubs are machined through a proprietary process that creates a curved jaw profile, enabling a press fit with the spider for zero-backlash operation. Start and stop applications in servo motor drive systems will often experience high peak torque loads caused by inertia, friction, and high acceleration/deceleration rates. The spider dampens these impulse loads to minimize shock to the motor and other sensitive components. Spiders are available in three durometers – 85 Shore A for greatest dampening, 92 Shore A for a balance of dampening, torque and torsional stiffness, and 98 Shore A for a small amount of dampening and the highest torsional torque and stiffness.

Jaw couplings offer a high level of customizability by allowing users to combine clamp and set screw hubs with various bore options, including inch, metric, keyed, and keyless bores, with sizes from 1/8 inch to 1-1/4 inch and 3 mm to 32 mm. They are considered failsafe as the interlocking hubs provide direct power transmission for controlled shutdown if the spider fails. Replacing the spider restores the original performance characteristics of the coupling, significantly reducing maintenance costs when compared to coupling styles that require complete replacement.

All Ruland jaw couplings are RoHS3 and REACH compliant. Fully custom jaw coupling designs are available for users seeking special materials, sizes, or specifications. Jaw couplings are part of Ruland’s complete zero-backlash coupling line, including rigid, bellows, disc, beam, oldham, controlflex, and slit couplings. Full product information, 3-D CAD files, and additional technical specifications are available at ruland.com.

Summary:
•    Elastomeric spider dampens impulse loads
•    Failsafe coupling does not lose power transmission in the event of spider failure
•    Highly customizable to fit system needs
•    Carefully made in Ruland’s factory in Marlborough, MA USA, with large stocks for immediate delivery
•    RoHS3, REACH, and Conflict Minerals compliant

Contenuti correlati

• 
  IO-Link and energy saving in air treatment with Emerson and CoreTigo

  Emerson is creating sustainable solutions for its customers with CoreTigo’s wireless industrial automation technologies. The collaboration tackles the challenges of compressed air management in machinery, ultimately reducing energy waste and CO2 emissions, while enhancing maintenance efficiency and...
• 
  Expanded inch-to-metric range of rigid couplings from Ruland

  Ruland Manufacturing is giving users access to a wider range of off-the-shelf couplings by expanding its inch-to-metric stand coupling product line with new rigid couplings. This expansion is the latest addition to the company’s inch-to-metric, standard coupling...
• 
  Virtual twins for sustainable assets with Dassault Systèmes and IBM

  Dassault Systèmes and IBM announced an extension of their long-standing collaboration with the signature of a memorandum of understanding combining their technologies to accelerate the sustainable transformation of asset-intensive industries thanks to virtual twin experiences. In 2022,...
• 
  Design and certification of new electric airplane with Siemens for Heart Aerospace

  Siemens Digital Industries Software announced that Swedish electric airplane maker Heart Aerospace has selected the Capital software suite from the Siemens Xcelerator portfolio of software and services to support its design, development, and certification of zero emission...
• 
  Pressure-reducing regulator by Emerson for hydrogen fuel cell vehicles

  Emerson has launched a pressure-reducing regulator specially designed for use onboard commercial hydrogen fuel cell vehicles. The dual stage and patented active seal design of the Tescom HV-3500 Hydrogen Onboard Regulator delivers steady pressure and constant hydrogen...
• 
  Generalized bearing life model SKF obtains DNV certification

  The SKF Generalized Bearing Life Model (GBLM) concept and the process leading to extensions of its applicability to special bearing design features and materials has been successfully audited by the independent certification body DNV. Calculating life expectancy...
• 
  PID controllers Gefran for product traceability in pharmaceutical industry

  Gefran, the Italian multinational group specialised in the design and production of sensors, industrial process control systems, electric drives and automation components, has launched the CFR-compliant version of its Multifunction series of multiloop PID controllers, capable of...
• 
  Quality management Fai Filtri certified ISO 9001

  Fai Filtri announces that it has obtained the new ISO 9001:2015 certification, confirming thus its commitment to maintain an effective Quality Management System, compliant with the standards, that is the result of constant work and professionalism. According...
• 
  Solenoid valves SMC for machinery safety

  SMC extended the range of ISO13849-1 compliant residual pressure release safety valves with the addition of the 3-port solenoid valves VP-X555 and X585, designed to be used as components in categories 3 and 4. Both models feature...
• 
  Scrubber compliance 0,5% sulfur ready Alfa Laval

  Alfa Laval enriched the PureSOx platform with PureSOx Global, a scrubber ready for 0,5% sulfur fuels compliance. The 0,5% sulfur fuel limit is anticipating the decisions to be taken at the October’s 2016 IMO’s Marine Environmental Protection...