German Ringspann coupling Ringspann model Ringspann price

Ringspann coupling is a torsionally rigid coupling with zero backlash, even under load. Even when misalignment generates load, the rigid coupling still transmits torque rigidly. Lightweight, ultra-low inertia and high sensitivity. Maintenance-free, excellent oil resistance and corrosion resistance. Aluminum alloy and stainless steel materials. Set screw type, clamp type and split type are available. Product models with different bore sizes at both ends are also in stock.

Ringspann coupling features

1) One-piece metal elastomer; 2) Zero backlash, synchronous operation; 3) Elastic action compensates for radial, angular and axial misalignment; 4) High torque rigidity and excellent sensitivity; 5) Clockwise and counter-clockwise rotation characteristics are identical; 6) Maintenance-free, oil resistant and corrosion resistant; 7) Aluminum alloy and stainless steel materials available; 8) Main fixation methods are set screw and clamping.

Ringspann coupling application range

Flexible couplings are made of aluminum alloy, and some manufacturers also provide flexible couplings made of stainless steel. In addition to corrosion resistance, stainless steel flexible couplings also increase torque capacity and rigidity, even reaching twice that of similar aluminum alloy products. However, this increased torque and rigidity is offset to some extent by the increased mass and inertia. Sometimes the negative effects outweigh the advantages, forcing users to look for other types of couplings.

Ringspann coupling installation and fixation

1) Flexible coupling set screw fixation: Two set screws with a gap of 90º lock onto the shaft. This is a traditional fixation method; since the tip of the screw contacts the shaft center, it may cause damage to the shaft or make disassembly difficult. 2) Ringspann flexible coupling clamp screw fixation: Uses the tightening force of hexagon socket head cap screws to contract the slit and tightly clamp the shaft. This method is easy to install and remove, does not damage the shaft, and is a very common fixation method. 3) Flexible coupling keyway fixation: Suitable for high torque transmission. To prevent axial slippage, it is usually used in combination with set screw fixation and clamp screw fixation. 4) Flexible coupling D shape hole fixation: Typically, if the motor shaft is D shaped, and set screws cannot secure it, the coupling bore can be machined into a D shaped hole matching the motor shaft size. Used with set screw fixation, this prevents slippage. 5) Clamping hub fixation: Tightens the four set screws on the end face of the Ringspann coupling to compress the clamping hub for secure fixation. Suitable for connecting and fixing high-torque stepper motors and servo motors, such as clamping hub disc couplings, clamping hub jaw couplings, clamping hub bellows couplings, and clamping hub flexible couplings.

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