FEATURE
CLUTCHES, BRAKES & COUPLINGS
sponsored by
LARGE BORE ZERO-BACKLASH JAW COUPLINGS FOR
HIGH-TORQUE APPLICATIONS
Ruland’s zero-backlash jaw coupling line includes sizes up to 45mm with increased torque capabilities
R
uland has recently expanded its jaw coupling line to meet the demands of high- torque applications, offering bore sizes
Designed for use in precision systems with high deceleration and acceleration curves, Ruland’s range of jaw couplings has been expanded to meet the demands of high-torque applications COUPLING FEATURES
up to 45mm and torque capacities of 300 Nm. These new jaw couplings are designed for use in precision systems with high deceleration and acceleration curves, such as those found in semiconductor, solar, conveyor, and warehouse automation applications. With zero-backlash, industry-leading misalignment capabilities, and a balanced design that reduces vibration at speeds up to 8,000 rpm, Ruland jaw couplings deliver optimal performance for demanding environments.
COUPLING DESIGN Ruland jaw couplings offer the highest size-for- size torque and torsional stiffness among flexible couplings in the Ruland product line. They consist of two precision-machined aluminium hubs connected by an elastomeric element called the spider. The curved jaw profile of the hubs presses fits with the spider, ensuring zero-backlash performance. Made from advanced polyurethane material, the spider damps impulse loads, minimizing shock to the motor and other sensitive equipment. “The expansion of our jaw coupling line allows designers to implement Ruland products in a broader range of applications, giving them the flexibility to handle higher torque requirements with the reliability they expect from Ruland,” says Bill Hewitson, President of Ruland Manufacturing. “These jaw couplings
26 DESIGN SOLUTIONS APRIL 2025
underwent rigorous physical testing to guarantee zero-backlash operation and adhere to the stated misalignment ratings, setting us apart from competitors. I am excited to support our OEM and distribution customers with these new products.”
HIGH STRENGTH MATERIALS Ruland manufactures zero-backlash jaw coupling hubs from meticulously selected, high-strength 2024 aluminium bar stock for lightweight, low inertia performance. Designers can mix and match hub and spider combinations to tailor coupling characteristics to their specific system needs. Clamp style hubs are available with or without keyways, in bore sizes ranging from 3mm to 45mm. Spiders are available in 98 Shore A hardness for maximum torque and torsional stiffness capabilities and 92 Shore A hardness for enhanced damping and misalignment capabilities. Ruland manufactures jaw couplings in its ISO 9001:2015 certified advanced manufacturing facility under strict quality controls using proprietary processes. The couplings are RoHS3, REACH, and Conflict Minerals compliant. Full product specifications, CAD models, and instructions can be found at
ruland.com.
• High torque coupling with up to 300 Nm of torque
• Bore sizes now available up to 45mm • Reduced vibration at speeds up to 8,000 rpm because of a balanced design • Ratings validated through thorough physical testing
• RoHS3, REACH, and Conflict Minerals compliant • Available in the UK from Acorn Industrial Services.
Ruland Manufacturing Co.
www.ruland.com
Acorn Industrial Services T: 0800 8766 441
www.acorn-ind.co.uk/ruland
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