Large bore zero-backlash jaw couplings

Ruland Manufacturing has expanded its jaw coupling line to meet the demands of high-torque applications, now offering bore sizes up to 45 mm 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.

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 aluminum 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 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."

Ruland manufactures zero-backlash jaw coupling hubs from meticulously selected, high-strength 2024 aluminum North American 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 3 mm to 45 mm. 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 in Marlborough, Massachusetts, USA, 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.

Summary:

High torque coupling with up to 300 Nm of torque
Bore sizes now available up to 45 mm
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

Product link:

https://www.ruland.com/servo-couplings/jaw-couplings.html

About Ruland:

Ruland Manufacturing Co., Inc. is a privately owned family company founded in 1937. Ruland has carefully and responsibly manufactured high performing shaft collars, rigid couplings, and motion control couplings for the past 40 years. Ruland’s product line was recently expanded to include a variety of machine components from select manufacturers that align with Ruland’s performance and quality standards.

UK distributor:

Acorn Industrial Services Ltd.

Unit A, Denby Way, Hellaby Industrial Estate

Rotherham S66 8HR

Phone 0800 8766 441

E-mail enquiries@acorn-ind.co.uk

Internet www.acorn-ind.co.uk/ruland

Contact: Ruland Manufacturing Co., Inc.

6 Hayes Memorial Drive

Marlborough, MA 01752, USA

Phone +1 508 485 1000

Fax +1 508 485 9000