
GUMMI A-45 flexible coupling
- Brand
- GUMMI
- Category
- Power transmission
- Subcategory
- Couplings
- Series
- Tipo A
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Description
GUMMI A-45 belongs to flexible coupling, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for A-45 and any equivalents.
The GUMMI A-45 flexible coupling connects two shafts while compensating misalignment and damping vibration and torsional shocks. Its elastic rubber center supports smooth, quiet operation and helps protect connected equipment. This coupling is part of the GUMMI Type A series and is available from MR Industrial Accessories LLC.
The A-45 uses a rubber center and a CN configuration, meaning two standard hubs. It is rated for a nominal torque of 250 Nm and accepts a maximum bore of 40 mm. The pilot bore measures 15 mm, the elastic center has a diameter of 167 mm, and the overall length is 140 mm. The coupling weighs 5 kg.
This model is commonly selected for centrifugal pumps, fans, compressors, conveyor belts, and mixers, as well as other equipment that needs vibration absorption and misalignment compensation. The rubber center reduces torque peaks and noise, which helps extend the life of connected bearings and gears. It is frequently found in process plants, food industries, and pumping systems.
When choosing a GUMMI A-45, consider the required nominal torque, the shaft diameters, and the operating environment. The 40 mm maximum bore sets the shaft limit, while the 15 mm pilot bore can be machined to the final size. Proper alignment during installation is important to avoid extra load on the elastic center and to support reliable operation.
For a different size or an equivalent, contact our team through WhatsApp or email with the code A-45 or the characteristics you need. We can suggest alternatives and help you select the right coupling for the application.
Dimensions
- Model
- A-45
- Configuration
- Two standard hubs (CN)
- Nominal torque
- 250Nm
- Max bore
- 40mm
- Pilot bore
- 15mm
- Elastic center Ø
- 167mm
- Overall length
- 140mm
- Weight
- 5kg
Frequently asked questions
- What does the CN configuration mean on the GUMMI A-45 coupling?
- CN indicates two standard hubs. Both hubs are standard design without special modification, making this configuration common for many shaft connections within the specified bore range.
- What is the nominal torque of the GUMMI A-45 coupling?
- The nominal torque is 250 Nm. This value reflects the power transmission capacity under normal operating conditions. For applications with torque peaks or variable loads, consider an appropriate service factor.
- Can the pilot bore of the GUMMI A-45 coupling be machined?
- Yes, the 15 mm pilot bore can be machined up to the maximum bore of 40 mm to match the shaft diameter. Machining should be precise, and alignment must be verified to ensure correct operation.

