There are three types of shaft holes for couplings: Y-type, J-type, and Z-type. Y-type shaft hole is a long cylindrical shaft hole, J-type shaft hole is divided into J type and J1 type, J type is a short cylindrical shaft hole with counterbore, and J1 type is a short cylindrical shaft hole without counterbore.

　　Z type shaft hole is divided into Z type and Z1 type, Z type is a short conical shaft hole with counterbore, and Z1 type is a short conical shaft hole without counterbore.The taper of the Z-shaped shaft hole is 1:10.

• Previous page:How to analyze the cause of damage to the elastic sleeve pin coupling
• Next page:Basic structure of permanent magnet coupling