Germany FLENDER coupling FLENDER model FLENDER price

FLENDER coupling sliders are ring-shaped, made of steel or wear-resistant alloys. Oldham couplings are suitable for transmissions with lower speeds and higher torque transmission. Slider couplings consist of two shaft hubs and a center slider. The center slider, as a torque-transmitting element, is usually made of engineering plastics; in special cases, other materials such as metals may be selected.

FLENDER coupling structure

There are two main structural forms of couplings: (1) alignment of the two shafts is achieved by bolts in reamed holes, and torque is transmitted by the bolt shank bearing compression and shear; (2) alignment is achieved by the fit between the shoulder on one half-coupling and the groove on the other half-coupling. The bolts connecting the two half-couplings can be grade A and grade B ordinary bolts, and torque is transmitted by the frictional moment on the mating surfaces of the two half-couplings. Flange coupling materials can be 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 bolts for reamed holes, or half can be bolts for reamed holes and the other half ordinary bolts.

FLENDER coupling features

1) Misalignment compensation. The misalignment compensation 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) Damping. For applications with frequent loaded starts or varying working loads, the coupling must contain elastic elements that provide damping and vibration isolation 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.

FLENDER 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 damping and vibration isolation, and the possibility of resonance. 2) The degree of relative displacement between the two shaft axes 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. In addition, working environment, service life, lubrication, sealing, and economic factors should be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.

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