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Flexible coupling GUMMI A-20
- Manufacturer Part Number
- A-20
- Brand
- GUMMIOfficial distributor
- Category
- Power transmission
- Subcategory
- Couplings
- Series
- Tipo A
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Description
GUMMI A-20 is a flexible coupling reference, within Power transmission. Request a quote for A-20 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The GUMMI A-20 flexible coupling is a power transmission component that joins two shafts and absorbs misalignments and vibrations through an elastic rubber center. It is used in equipment where smooth starting is required and mechanisms need protection. MR Accesorios Industriales supplies this model with two standard hubs, a nominal torque of 38 Nm and a maximum bore of 20 mm.
This GUMMI A-20 coupling, from the Type A series, is configured with two standard hubs (CN). Its elastic rubber center has a diameter of 95 mm, and the assembly reaches a total length of 80 mm. The nominal torque is 38 Nm and it accepts a maximum bore of 20 mm. The 10 mm pilot hole allows the shaft seat to be machined to the required final size. The approximate weight is 1.05 kg.
It is used in centrifugal pumps, fans, screw compressors, conveyor belts and machine tools. It is common in installations where the aim is to reduce vibration transmission and compensate for small misalignments between shafts. It is also used in low and medium power equipment that requires a flexible coupling with simple maintenance.
To select the coupling, check the nominal torque of the system and the diameter of the shafts to be joined. The maximum bore of 20 mm defines the limit for machining the hubs. It is important to control alignment during installation to avoid parasitic loads on the elastic center. The two standard hub configuration allows the flexible element to be mounted between both hubs and secured with the corresponding screws.
If you need a nearby size or an equivalent model, write to us on WhatsApp with the code A-20 or the model you are looking for. We can advise you on other configurations of the Type A series and check the availability of variants with different bores or rubber hardnesses. MR Accesorios Industriales has more than 80 years of experience in power transmission.
To request a quote for the GUMMI A-20 coupling, send the code on WhatsApp to MR Accesorios Industriales. We will reply shortly with the commercial information and available alternatives. You can also ask about bearing housings, bearings, chains and other transmission components we supply.
Dimensions
- Model
- A-20
- Configuration
- Two standard hubs (CN)
- Nominal torque
- 38Nm
- Max bore
- 20mm
- Pilot bore
- 10mm
- Elastic center Ø
- 95mm
- Overall length
- 80mm
- Weight
- 1,05kg
Frequently Asked Questions
- What does the CN configuration mean in the GUMMI A-20 coupling?
- CN indicates two standard hubs. It is one of the configurations of the Type A series, where the elastic rubber center is mounted between both hubs and secured with screws. This arrangement allows torque to be transmitted and misalignments to be absorbed.
- What is the nominal torque and maximum bore of the A-20?
- The nominal torque is 38 Nm and the maximum bore is 20 mm. The 10 mm pilot hole allows the shaft seat to be machined to the final size. These values define the application limit of the coupling.
- How do I request a different size or an equivalent?
- Write to us on WhatsApp with the code A-20 or the model you need. We can advise you on other variants of the Type A series and check alternatives with different bores or configurations. The reply is sent shortly.

