Rexnord EF00139 E4HSU Omega Elastomeric Coupling Element. This E4HSU heavy-duty high-speed universal element is designed for close-coupled applications, transmitting 233 in-lb of continuous torque with a maximum bore of 1.0 in and element OD of 2.96 in. Constructed from standard urethane (orange), it accommodates bore sizes of 1 in and 1.375 in.

Omega close-coupled HSU (Hydrolytically Stable Urethane) elastomeric coupling consists of the unique split-in-half flex element and reversible hubs.

• Ideal for hot and humid, or caustic and acidic environments
• Phosphate coated anti-corrosive steel shoe option available (HSU-J)
• Available in Inch (Imperial) or Metric
• Hubs offered in rough, custom, or bushed designs
• Accommodates shaft diameters up to 9.00" (229 mm)
• Continuous torque loads up to 340,200 lb-in (38,442 Nm)
• Peak torque loads up to 850,500 lb-in (96,093 Nm)
• Available in 16 sizes from E2 to E140 (E2-M to E140-M metric)