This taper lock bushing is a high quality as European standard, durable, and dependable product that has been precisely manufactured. The material is GG25 or steel C45. Phosphating and blackening treatment on the surface。They are used in a wide range of applications including; belt pulleys, sprockets, drum pulleys, drive pulleys, tail pulleys, sheaves, and gears, which are items that we also offer! Additionally this bushing with a flexible bore with a standard keyway suit different shaft diameter. For more information on taper lock bushings, please contact us and we will be happy to assist you.