These special couplings are precision machined with a thermally and chemically stable, wear resistant, polyurethane insert press fit between the two for zero backlash.

R+W (Bensenville, IL) has developed a full range of ATEX certified “explosion proof” couplings in accordance with the European directives, ATEX 95 and ATEX 137. These special couplings are precision machined with a thermally and chemically stable, wear resistant, polyurethane insert press fit between the two for zero backlash. Additional features include:

• A smooth fit between the insert and the hubs that help the insert to compensate for lateral, angular, and axial shaft misalignment. 
• An insert that is impregnated with graphite giving it electrically conductive properties, eliminating the potential for any charges arcing from one hub to the other. 
• Available in a variety of mounting configurations, and can include torque overload protection. 
• 9 available sizes ranging from torque ratings of 2 – 2150 Nm (17 to 19,000 in-lbs). 
• English and metric bore diameters are available in a range from 3 – 80 mm (1/8 to 3.125in) with or without keyways. 

For more information visit www.rw-america.com