Face Gear Couplings

End face gear coupling is a high-precision coupling device that achieves power transmission through end face tooth meshing, and belongs to a special form of rigid coupling. This type of coupling can achieve high torque transmission and precise shaft alignment by meshing two precision machined end face gears, and is widely used in high-end transmission fields such as aerospace, gas turbines, and high-speed railways.

Core Features

1. High torque density: The end face tooth structure can achieve greater torque transmission capacity per unit volume
   

2. Zero backlash transmission: Precise meshing ensures no reverse backlash, and the positioning accuracy can reach ± 0.01mm
   

3. Automatic centering capability: The unique tooth profile design can compensate for small centering deviations (axial ± 0.1mm, radial 0.05mm)
   

4. High speed adaptability: The dynamic balance level can reach G2.5, and the maximum speed exceeds 15000rpm
   

5. Modular design: supports quick disassembly and assembly, reducing maintenance time by 70%

The end face gear coupling mainly consists of the following core components:

1. Active end gear plate: made of quenched alloy steel, with the tooth surface machined by grinding
   

2. Driven end gear plate: a meshing component paired with the driving end
   

3. Pre tightening mechanism: hydraulic or bolt pre tightening system to ensure meshing pressure
   

4. Centering guide ring: a positioning reference plane for precision machining
   

5. Lubrication system (optional): centralized lubrication or solid lubrication coating

The end face gear coupling achieves power transmission through conjugate tooth contact:

1. Pre tightening force causes elastic deformation of the teeth on the end faces of the two toothed discs
   

2. The torque load is decomposed into tangential components through the normal force on the tooth surface
   

3. Involute or circular arc tooth profile ensures simultaneous contact of multiple teeth (contact rate ≥ 90%)
   

4. Microscopic slip absorption system for tooth surface vibration energy

Dynamic compensation mechanism:

1. Axial floating: tooth clearance allows for ± 0.2mm axial displacement
   

2. Angle deviation: Special tooth tip modification can compensate for a deviation angle of ≤ 0.5 °
   

3. Radial adaptability: Drum shaped tooth design allows for radial deviation within 0.1mm

Tooth shaped design

1. Involute tooth profile: standard design, uniform distribution of contact stress
   

2. Circular tooth shape: improves bending strength and is suitable for impact loads
   

3. Double pressure angle teeth: improving contact characteristics under large angle conditions
   

4. Shaping technique: trimming the edge of the tooth top/root to reduce edge stress concentration

As a key component of high-precision transmission, the technology development of end face gear couplings is moving towards higher performance, intelligence, and environmental friendliness. Proper selection, standardized installation, and scientific maintenance are the foundation for ensuring its full performance. For special application scenarios, it is recommended to consult professional technicians for customized solutions.