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Cutaway of a GUMMI Type A elastic coupling with integral hub · GUMMI A-25 CI
Flexible coupling GUMMI A-25 with integral hub

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Flexible coupling GUMMI A-25 with integral hub

Manufacturer Part Number
A-25 CI
Brand
GUMMIOfficial distributor
Category
Power transmission
Subcategory
Couplings
Series
Tipo A

GUMMI

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Description

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

The GUMMI A-25 CI flexible coupling is a power transmission component that connects two shafts and absorbs misalignment, vibration and load peaks. Its integral hub (CI) configuration makes it suitable for larger diameter shafts, with a maximum bore of 30 mm. It is used in equipment where continuous operation and protection of bearings and gears are required. MR Accesorios Industriales sells it in Buenos Aires, Argentina, with more than 80 years of experience in the field.

This coupling from the GUMMI Type A series is identified as model A-25 and stands out for its integral hub, a single piece that simplifies mounting and adds rigidity to the assembly. The maximum bore accepted is 30 mm, which allows it to be coupled to larger diameter shafts than those of the standard version. The intermediate flexible element transmits torque and dampens oscillations, reducing wear on neighboring components.

Typical applications of this coupling include centrifugal pumps, fans, screw compressors, conveyor belts and machine tools. In all cases, the function is to transmit power between shafts aligned with small angular or radial deviations, and to filter vibrations that would otherwise reach the bearings. It is a common solution in industrial plants, workshops and continuous process equipment.

To correctly select the A-25 CI, take into account the diameter of the shafts to be joined, the nominal torque and starting peaks, and the permissible degree of misalignment. The integral hub requires verifying the maximum bore of 30 mm and the fastening system (keyway or set screw). Mounting must be done with the shafts aligned within the manufacturer's tolerances, without forcing the flexible element, and with the bolts tightened to specification.

If you need a nearby size or an equivalent, message us on WhatsApp with the code A-25 CI or with your shaft dimensions and the type of machine. We can advise you on other configurations of the Type A series or alternatives from other brands we carry. MR Accesorios Industriales replies promptly so you can request a quote without delays.

To complete your inquiry, send the code GUMMI A-25 CI by WhatsApp to MR Accesorios Industriales. We will send you the quote and coordinate shipping. You can also ask about the rest of the couplings and power transmission line we have available.

Dimensions

Model
A-25
Configuration
Integral hub (CI)
Max bore
30mm

Frequently Asked Questions

What does the CI configuration mean in the GUMMI A-25 coupling?
CI stands for integral hub: the hub and the flange form a single piece, which simplifies mounting and adds greater rigidity. This version accepts a maximum bore of 30 mm, designed for larger diameter shafts than those of the standard variant.
How do I choose the right coupling for my application?
You need to know the shaft diameter, the torque to be transmitted, the operating speed and the degree of misalignment. With that data, we determine whether the A-25 CI is the right option or whether another size from the Type A series is better.
Can I request a size other than the one published?
Yes. Message us on WhatsApp with the code or model you need and we will send you a quote promptly. We can also advise you on equivalents from other brands we carry for your equipment.
Request a quote on WhatsApp