professional factory for Z7aexpansion Sleeve - Expansion Sleeve Wholesale Factory – Chengfeng Bearing

Introduction and Advantages：

The expansion sleeve is widely used in the world as a transmission product with a keyless connection structure. Under the action of the axial force, the inner sleeve of the expansion sleeve shrinks and expands to make the shaft and the hub closely fit. Generate enough friction to transmit torque and axial force, so as to achieve the purpose of the operation of the mechanism. The expansion and tightening coupling sleeve has good centering performance of the connection, no heating, disassembly or adjustment of the relative position of the shaft and the hub during assembly is convenient, no stress concentration, strong bearing capacity, large torque, good stability, high precision, and no damage to the mating surface Features.

Application:

used for packaging machinery, textile machinery, mining machinery, metallurgical machinery, printing machinery, tobacco machinery, forging machinery, construction machinery, various types of machine tools and interchangeable mechanical transmission connections. For example: pulleys, sprockets, gears, bevel pulleys, impellers, synchronous pulleys, propellers, large and small fans, blowers, reducers, wind energy generators, stepper motors, servo motors, wire drawing machines, or directly connected to shafts and hubs and other various transmission connections.

The company’s production range: Z2 type, Z4 type, Z5 type, Z7B type, Z9 type, Z10 type, Z12A type expansion coupling sleeve, backstop, serpentine spring coupling and other related products.

Basic dimensions and technical parameters of Z2 type expansion joint sleeve

The mechanical property level of Z2 and Z9 type expansion screws is 12.9

Basic dimensions and technical parameters of Z9 type expansion joint sleeve