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Flexible coupling GUMMI A-120/120
- Manufacturer Part Number
- A-120/120
- Brand
- GUMMIOfficial distributor
- Category
- Power transmission
- Subcategory
- Couplings
- Series
- Tipo A
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Description
GUMMI A-120/120 is a flexible coupling reference, within Power transmission. Request a quote for A-120/120 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The GUMMI A-120/120 flexible coupling is a power transmission component that connects two shafts and absorbs misalignment, vibration and load peaks. Its rubber flexible center allows smooth operation in equipment with frequent starts or variable loads. It is used in pumps, fans, compressors and conveyors, among other industrial applications. MR Accesorios Industriales supplies this reference backed by more than 80 years in the industry.
The A-120/120 model belongs to the Type A series of GUMMI flexible couplings and comes with a two standard hub configuration (CN). Its main technical data are: rated torque of 4940 Nm, maximum bore of 120 mm, pilot bore of 45 mm, flexible center diameter of 403 mm, overall length of 380 mm and weight of 86 kg. This combination positions it as a robust option for medium and high power transmissions.
Typical applications of this coupling include driving centrifugal pumps, industrial fans, screw compressors, conveyor belts and mills. In all cases, the rubber flexible element dampens torsional vibration and compensates for small misalignments between shafts, which reduces wear on bearings and seals and extends the service life of the assembly.
To correctly select the coupling, take into account the rated torque required by the machine, the diameter of the shafts to be connected and the rotation speed. The maximum bore of 120 mm and the pilot bore of 45 mm allow the hubs to be machined to the final size of each shaft. It is important to verify alignment during assembly and use the appropriate fastening elements to avoid parasitic stresses.
If you need a different size or an equivalent coupling, write to us on WhatsApp with the part number or your shaft dimensions. At MR Accesorios Industriales we have 3,407 references and can guide you to find the variant that best suits your equipment. We can also advise you on the hub configuration and the type of flexible center most suitable for your application.
To request a quote for the GUMMI A-120/120 coupling or ask about other sizes in the Type A series, send the part number by WhatsApp to MR Accesorios Industriales. We will reply shortly with the information you need to move forward with your project.
Dimensions
- Model
- A-120/120
- Configuration
- Two standard hubs (CN)
- Nominal torque
- 4940Nm
- Max bore
- 120mm
- Pilot bore
- 45mm
- Elastic center Ø
- 403mm
- Overall length
- 380mm
- Weight
- 86kg
Frequently Asked Questions
- What does the CN configuration mean on this coupling?
- CN indicates two standard hubs, meaning both sides of the coupling are the same and are machined to fit the shafts. This configuration is the most common and allows the coupling to be mounted in any position, always respecting the indicated maximum bore and pilot bore.
- Can I machine the hubs to a different size?
- Yes, the coupling is supplied with a 45 mm pilot bore and can be machined up to a maximum bore of 120 mm. It is essential to machine with adequate tolerances and verify alignment so as not to compromise the service life of the flexible element.
- How do I request a quote or an equivalent?
- Write to us on WhatsApp with the part number A-120/120 or your shaft dimensions and the required torque. At MR Accesorios Industriales we advise you to find the right variant within the Type A series or an equivalent that meets your equipment's needs.

