German Bosch Rexroth coupling, Bosch Rexroth model, Bosch Rexroth price

Bosch Rexroth couplings transmit motion by welding or bonding a thin-walled corrugated tube (bellows) directly to the two half-couplings. This type of coupling has a simple structure, small overall dimensions, is easy to machine and install, and offers high transmission accuracy. It is mainly used in low-power precision machinery and control mechanisms that require compact structures and high transmission accuracy. The coupling consists of two hubs and a thin-walled metal tube, connected by welding or bonding. Although many other materials are available, stainless steel and nickel are the most commonly used materials for the metal tube. Nickel tubes are produced using electrodeposition. This method first involves machining a solid mandrel into a corrugated shape, electroplating nickel onto the mandrel, and then chemically dissolving the mandrel to obtain the nickel bellows. This method allows control over the precision of the bellows wall thickness and can achieve thinner walls than bellows made by other methods. These thin-walled bellows give the coupling high sensitivity and rapid response, making it ideal for use in extremely small and precise instrument applications.

Bosch Rexroth coupling structure

Couplings have two main structural forms: (1) achieves alignment of the two shafts using bolts in reamed holes and transmits torque through compression and shear on the bolt shanks; (2) achieves alignment by mating a shoulder on one half-coupling with a groove on the other. The bolts connecting the two half-couplings can be standard bolts of grade A and grade B, with torque transmitted via the frictional moment at the joint surface of the two half-couplings. Flange couplings can be made from gray cast iron or carbon steel; cast steel or forged steel should be used for heavy loads or when the circumferential speed exceeds 30 m/s. Depending on the magnitude of the transmitted torque, all bolts on the flange can be reamed-hole bolts, or half can be reamed-hole bolts and the other half standard bolts.

Bosch Rexroth coupling features

1) Misalignment compensation. The misalignment compensation capability of a coupling refers to its ability to compensate for the relative displacement between two rotating components. Manufacturing and installation errors between connected components, temperature changes during operation, and load-induced deformation all impose requirements on misalignment compensation. This capability can compensate for or alleviate additional loads on shafts, bearings, couplings, and other components caused by relative displacement between rotating components. 2) Cushioning. For applications involving frequent loaded starts or varying working loads, the coupling must include elastic elements that provide cushioning and vibration damping to protect the prime mover and driven machine from damage. 3) Safe and reliable, with sufficient strength and service life. 4) Simple structure, easy to assemble, disassemble, and maintain.

Bosch Rexroth coupling selection

Selection of coupling type: When selecting a coupling type, the following factors should be considered. 1) The magnitude and nature of the torque to be transmitted, requirements for cushioning and vibration damping functions, and the potential for resonance. 2) The degree of relative displacement between the axes of the two shafts caused by manufacturing and assembly errors, shaft loading, thermal expansion deformation, and relative motion between components. 3) Permissible overall dimensions and installation methods, as well as the operating space required for assembly, adjustment, and maintenance. For large couplings, disassembly and assembly should be possible without axial movement of the shaft. Additionally, consider working environment, service life, lubrication, sealing, and economic factors, and refer to the characteristics of various coupling types to select a suitable coupling.

Weidou Intelligent Technology specializes in selling German Bosch Rexroth rigid couplings, Bosch Rexroth flexible couplings, Bosch Rexroth safety couplings, Bosch Rexroth universal joints, Bosch Rexroth diaphragm couplings, Bosch Rexroth jaw couplings, Bosch Rexroth flange couplings, Bosch Rexroth cross-slide couplings, Bosch Rexroth slider couplings, Bosch Rexroth gear couplings, Bosch Rexroth tire couplings, Bosch Rexroth elastic couplings, Bosch Rexroth bellows couplings, Bosch Rexroth roller chain couplings, Bosch Rexroth spring couplings. Bosch Rexroth products are original imports from Germany. Customers are welcome to inquire and order.