Flange Universal Joint Coupling

The flange universal joint coupling is a key connecting component widely used in mechanical transmission systems. It connects two transmission shafts with different axes on the same straight line through flange connection, allowing for power transmission while allowing for a certain degree of deflection and displacement. This type of coupling combines the stability of flange connections with the flexibility of universal joints, and plays an irreplaceable role in the industrial field.

Main components

1. Flange components: usually made of high-strength cast iron or forged steel, with precision machined surfaces and bolt holes for connection

2. Cross shaft assembly: composed of a cross shaft, needle roller bearings, and seals, it is the core moving component of the universal joint

3. Bearing seat: fixing the outer shell of the needle roller bearing to ensure stable operation of the bearing
   

4. Sealing system: prevent lubricant leakage and contamination from entering

The flange universal joint coupling achieves power transmission between non collinear shafts through a cross axis structure, and its working principle is based on the following mechanism:

1. Angular displacement compensation: When there is an angle between the two axes (usually ≤ 15 °), the cross axis rotates inside the bearing, keeping the driving shaft and the driven shaft rotating synchronously

2. Speed fluctuation adjustment: A single universal joint will generate speed fluctuations, and using a dual universal joint arrangement can eliminate these fluctuations

3. Axial displacement compensation: Some designs allow for limited axial displacement (typically 3-5mm)

Classified by structural form

1. Standard flange universal joint coupling: common basic types

2. Compact flange universal joint: smaller axial size
   

3. Large angle flange universal joint: allows for greater deflection angle
   

4. Universal joint with expansion joint flange: capable of axial compensation

Common Model Series

1. SWC type: lightweight flange universal joint
   

2. SWP type: Medium sized flange cross shaft universal joint

3. SWZ type: heavy-duty flange universal joint
   

4. G Ⅰ CL type: drum shaped toothed flange coupling (composite type)

Application field

1. Industrial machinery equipment
   Metallurgical equipment such as rolling mills and straightening machines
   Mining machinery: crushers, ball mills
   Paper making machinery: drying machines, calenders
   Construction machinery: excavators, cranes

2. Transportation
   Ship propulsion system
   Locomotive transmission device
   Heavy truck transmission shaft

3. Special equipment
   Wind turbines
   Petroleum drilling equipment
   Large test bench

The flange type universal joint coupling occupies an important position in the heavy industry field due to its excellent deflection compensation capability and high load-bearing characteristics. Proper selection, installation, and maintenance are key to ensuring its long-term reliable operation.