German ROTEXGS coupling ROTEXGS model ROTEXGS price

ROTEXGS couplings are divided into two main categories: convex and concave. The convex type is further divided into three types: integral with skeleton, integral without skeleton, and radial slit. The inner side of the tire ring is bonded to the steel skeleton by vulcanization, and nuts are welded at the bolt holes on the skeleton. During assembly, bolts are used to connect the flanges of the two halves of the coupling. Torque is transmitted by the friction generated between the tire and the flange end faces by tightening the bolts. The tire ring undergoes torsional shear deformation during operation, so the tire coupling has high elasticity, a large ability to compensate for relative displacement of the two shafts, and good damping. Moreover, it has a simple structure, requires no lubrication, and is relatively convenient to assemble, disassemble, and maintain. Its disadvantages are low load capacity and large external dimensions. As the relative torsion angle between the two shafts increases, the tire shape becomes twisted, the axial dimension slightly decreases, generating significant additional axial forces on the two shafts, which increases the bearing load and reduces service life. When the tire coupling operates at high speed, the outer edge of the tire expands outward due to centrifugal force, further increasing the additional axial force. Therefore, measures should be taken during coupling installation to make the stress direction in the tire opposite to the stress direction generated during operation, to offset part of the additional axial force and improve the working conditions of the coupling and the two bearings.

ROTEXGS coupling features

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

ROTEXGS coupling application range

Elastic couplings are made of aluminum alloy. Some manufacturers also offer elastic couplings made of stainless steel. In addition to corrosion resistance, stainless steel elastic couplings increase torque capacity and rigidity, even reaching twice that of similar aluminum alloy products. However, this increase in torque and rigidity is partially offset by the increased mass and inertia. Sometimes the negative effects outweigh the advantages, forcing users to seek other types of couplings.

ROTEXGS coupling installation and fixation

1) Elastic coupling set screw fixation: Two set screws with a gap of 90º tighten against the shaft to be fixed. This is a traditional fixation method. Since the tip of the screw contacts the shaft center, it may cause damage to the shaft center or make disassembly difficult. 2) Lingshi elastic coupling clamping screw fixation: Uses the tightening force of hexagon socket head cap screws to contract the slit, tightly clamping the shaft center. This method is convenient for fixation and disassembly, does not damage the shaft center, and is a commonly used fixation method. 3) Elastic coupling keyway fixation: Suitable for high-torque transmission. To prevent axial sliding, it is usually used in combination with set screw fixation and clamping screw fixation. 4) Elastic coupling D-shaped hole fixation: Typically, if the motor shaft is D-shaped, and set screws cannot secure it, the coupling hole can be machined into a D-shaped hole corresponding to the motor shaft size. Combined with set screw fixation, this prevents slippage. 5) Clamping hub fixation: Tightens the four set screws on the end face of the Lingshi coupling to compress the clamping hub for 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 elastic couplings.

Weidou Intelligent Technology professionally sells German ROTEXGS rigid couplings, ROTEXGS flexible couplings, ROTEXGS safety couplings, ROTEXGS universal joints, ROTEXGS disc couplings, ROTEXGS jaw couplings, ROTEXGS flange couplings, ROTEXGS cross slide couplings, ROTEXGS slider couplings, ROTEXGS gear couplings, ROTEXGS tire couplings, ROTEXGS elastic couplings, ROTEXGS bellows couplings, ROTEXGS roller chain couplings, ROTEXGS spring couplings, ROTEXGS original German imports. Welcome customers to inquire and order.