ellows couplings with increased misalignment capabilities have been added to Ruland’s motion control
coupling product line. According to the company, these bellows
couplings complement its existing high- stiffness line by offering equivalent torque with greater misalignment flexibility.
Ruland’s bellows couplings are lightweight, have low inertia, and can reach speeds up to 10,000rpm due to the combination of anodised aluminium hubs and stainless steel bellows. As a result, they are ideal for precise positioning applications that utilise a servo or stepper motor connected to a ball screw, lead screw, or gearbox.
The thin walls of the bellows flex easily
while remaining rigid under torsional loads, allowing the coupling to accommodate all forms of misalignment. The increased misalignment style features more convolutions than the high-stiffness style, meeting the desired misalignment requirements. Ruland bellows couplings with increased misalignment are available in clamp style designs, with or without keyways, in bore sizes from 4mm to 20mm; while standard bellows couplings are available with bore sizes ranging from 3mm to 45mm. The hubs are manufactured from meticulously selected 2024 T-351 aluminium bar stock for high strength and low inertia. The bellows are
made from stainless steel, giving the coupling flexibility under torsional loads. Each coupling undergoes a proprietary assembly process and thorough physical testing. The couplings are made in Ruland’s ISO 9001:2015 certified advanced manufacturing facility in Marlborough, Massachusetts. All Ruland couplings are RoHS3, REACH, and Conflict Minerals compliant.
• Increased misalignment due to more convolutions than high-stiffness styles • Reduced vibration at speeds up to 10,000rpm because of a balanced design
• Low inertia for use in precision systems due to the use of high-grade lightweight 2024-T351 aluminium • Ratings validated through thorough physical testing
• Carefully manufactured in Ruland’s advanced manufacturing facility
• Available in the UK from Acorn Industrial Services.
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