Product Name: Plum Spring Coupling Rotex Plum Spring Coupling Model NO.: XL Type: Plum Coupling Material: 45#Steel Structure: Flexible Speed: 8000r/M Bore Diameter: 19mm Torque: >80N.M Shaft Hole: 8-24 Standard Or Nonstandard: Standard Surface Treatment: Black Coating Trademark: YonOPO Transport Package: The Wooden Case Specification: 2.08KG Origin: China HS Code: 8483600090 Product Description The star coupling is made of polyurethane, which has the characteristics of cushioning, vibration reduction and abrasion resistance. It is easy to disassemble and assemble, and the working temperature is -20ºC~80ºC.The hub materials are powder metallurgy, cast iron, ball mill cast iron or steel and aluminum alloy.The elastomer is made of polyurethane, available in 4 different degrees of hardness (80A, 92A, 98A, 64D) and withstands different torques, of which 92A is standard.