Flexible coupling GUMMI A-20/25 with axial hub

GUMMI A-20/25 CX is a coupling reference, within Power transmission. Request a quote for A-20/25 CX via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The GUMMI A-20/25 CX flexible coupling is a power transmission component that joins two shafts and absorbs misalignments, vibrations and torque peaks. Its axial hub configuration (CX) is designed for machines that do not allow axial displacement, where the coupling must maintain its longitudinal position. It is used in industrial equipment that requires smooth and reliable transmission, and it is a robust alternative to replace rigid couplings or for new installations.

This GUMMI Type A coupling, model A-20/25, stands out for its axial hub (CX). It accepts shafts with a minimum diameter of 15 mm and a maximum of 21 mm. The A-20/25 designation refers to the construction size of the series, and the CX suffix indicates the mounting variant that restricts axial movement. It is a power transmission part that combines an elastic element with metal hubs, which allows small angular and radial misalignments to be compensated while transmitting torque between shafts.

Typical applications for this coupling include centrifugal pumps, fans, screw compressors, conveyor belts and machine tools. In all cases, the axial hub is useful when the equipment has a thrust bearing that fixes the shaft position, or when the design does not tolerate the coupling shifting longitudinally. It is also used in drives with gear motors where the goal is to reduce vibration transmission and protect bearings from parasitic loads.

To correctly select the A-20/25 CX, check that the shaft diameters are within the 15 to 21 mm range and that the axial configuration matches the machine's needs. During assembly, align the shafts as precisely as possible, respecting the manufacturer's tolerances, and make sure the elastic element is free of initial stress. It is fastened to the shaft with set screws or keys according to the hub design. If you have questions, consult the GUMMI data sheet or message us.

If you need an equivalent or a nearby size, we can help you find the right variant within the GUMMI Type A line. We carry 3,407 power transmission references, and we can guide you toward a model with a different shaft diameter or a different configuration. To do so, send us the code of the coupling you are looking for, the shaft diameter and the working conditions. That way we can give you a precise answer shortly.

MR Accesorios Industriales sells this coupling as part of its power transmission line. If you want to request a quote or ask about other sizes, send the code A-20/25 CX by WhatsApp and we will reply shortly. We can also advise you on the assembly and selection of flexible couplings for your application. We are in Buenos Aires, Argentina, and we serve the entire country.