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Gummi couplings connect the driving shaft to the driven machine through an elastic element. The catalogue brings several A series arrangements into one subcategory: normal hubs, references with an integral hub and spacer versions. That assembly distinction matters when finding a replacement. Choosing only by the appearance of the rubber element leaves out the hubs and the installation space required by the complete coupling.
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A-20 and A-25 identify different A series sizes. The number is not a direct statement of shaft diameter or transmission capacity. Compare the code with both ends of the coupling: the motor side and the machine side may require different information.
A-30 CI has an additional group after the size; A-20/25 ES 100 has a compound designation and a longer final group. Retain the complete references when searching. The slash in A-20/25 must not be interpreted as a shaft diameter range. Dimensions and arrangement need to be checked against the relevant record instead of being inferred solely from the numbers in the name.
The Gummi guide describes applications in pumps, fans and compressors. Explain the particular drive and how the coupling is accessed for maintenance. If a spacer sits between the hubs, show it in the photographs: that arrangement occupies space and affects how machine components are removed.
The elastic element forms part of the shaft connection, but does not replace checking mounting alignment. For repeated breakage, include the condition of the rubber and hubs, together with a side view of both machines on their bases.
State the Gummi reference and whether the request is for a complete coupling or an identified component of the existing one. Measure both shafts, their keyways and the separation between shaft ends. Attach views of the assembly, each hub and any readable marking; include the quantity and the driven machine. If an installation drawing exists, provide its axial clearance dimensions so the requested arrangement can be compared.
No. It identifies a series size; verify the bore against hub and shaft measurements.
Configuration and spacers affect the assembly. Compare its overall length and connection points.
It helps identify the element, but the complete coupling also requires hub information, its reference and mounting dimensions.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
The GUMMI Type A flexible coupling is a power transmission component that connects two shafts and absorbs misalignment, vibration and torsional shock. Its elastic rubber center allows smooth, quiet operation, protecting the connected equipment. It is used in pumps, fans, compressors and conveyors, among other industrial applications. MR Accesorios Industriales supplies this line in Buenos Aires, Argentina, with technical advice to choose the right model.
The GUMMI Type A flexible coupling with CI configuration (integral hub) is a power transmission component that connects two shafts and absorbs misalignment, vibration and torsional shock. It is used in equipment where simple, robust installation is required, with a hub machined in a single piece that provides rigidity and strength. MR Accesorios Industriales supplies this line in Buenos Aires, Argentina, in industrial distribution.
The GUMMI Type A elastic coupling with spacer is a power transmission component that allows the drive unit to be removed without moving the pump or the piping. It is used in back-pull-out pumps, where the spacer provides the space needed to withdraw the rotor without uncoupling the system. MR Accesorios Industriales supplies this line in Buenos Aires, Argentina, in power transmission.
Some codes:A-20/25 ES 75A-20/25 ES 100A-20/25 ES 140A-30/35 ES 100A-30/35 ES 140
Just the manufacturer part number is enough: we will quote it and provide dimensions and equivalents via WhatsApp or email.
