The plant manufactures couplings with a diameter of up to 400 mm inclusive of steel grade 35 according to GOST 1050 - 60. Steel couplings have a much longer service life than cast iron couplings. Couplings Ø500 mm are made of cast iron grade SCH 21 - 40 according to GOST 1412 - 54.
Finger couplings are used to connect the shafts, to transfer rotational motion between them. In addition, couplings of this type reduce dynamic loads, compensate for misalignment of shafts and load fluctuations.
The main advantages of these parts include the use of rubber fingers without metal cores. Such a pin clutch allows for minimal stress on shafts and bearings, and wear of the pins does not cause an increase in unbalance.
This type of coupling is ideal for drives that operate with fluctuating loads.
Of the elastic couplings, the simplest in their design are the MUVP couplings (elastic sleeve - finger couplings). Such couplings consist of 2 coupling halves, which are connected by metal "fingers" with elastic rubber bushings fixed to them (hence the name: pin - sleeve). The rubber bushings have grooves that increase the elasticity of the elements. Due to their deformation, the mutual displacement of the two coupling halves occurs, which provides compensation for the displacements of the connected shafts. For greater compliance, rubber bushings may have corrugations. Due to such rubber bushings, shocks are successfully amortized during load fluctuations.
The elasticity of the shaft connection is achieved by the fingers, on which leather washers or rubber cuffs are put on. Such pins - bolts are inserted into the leading coupling half with the metal part, and into the driven half with the elastic part.
The performance of pin couplings is determined by the strength of rubber bushings and pin bolts. As a rule, bushings can work effectively in the environment of water, oil, air, kerosene and gasoline. Operating temperature - 30°С + 50°С. In addition, the parts are able to withstand long - term compressive stress and short - term sharp overloads.