Commonly used coupling types

In industrial automation equipment, couplings commonly used to connect motors and fans are mainly divided into two categories: Rigid and flexible. Specifically, they include the following types:

Rigid Couplings: Such as flange couplings and sleeve couplings, these have a simple and direct structure, achieving a rigid connection between two shafts through flanges or sleeves, suitable for high-precision transmission scenarios.

Flexible Pin Couplings: These use pins with elastic sleeves to connect two coupling halves. The elastic sleeves are mostly made of rubber or polyurethane, which can effectively absorb vibration and impact.

Chicago Couplings: These consist of two metal half-couplings sandwiching a chicago-shaped elastic body (rubber/polyurethane). Torque transmission and misalignment compensation are achieved through the deformation of the elastic body.

Gear Couplings: These transmit torque through the meshing of internal and external teeth. Common types include spur gear couplings and drum gear couplings, particularly suitable for heavy-duty applications.

Diaphragm Couplings: These use stainless steel diaphragms as the elastic element, compensating for misalignment through diaphragm deformation, performing well in high-speed transmissions.

Universal couplings: Rely on cross shafts or ball joint structures to compensate for large-angle deviations, such as cross shaft universal couplings, which are suitable for scenarios that require "turning" transmission.