GUMMI A-350/250 flexible coupling
- Brand
- GUMMI
- Category
- Power transmission
- Subcategory
- Couplings
- Series
- Tipo A
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Description
GUMMI A-350/250 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-350/250 and any equivalents.
The GUMMI A-350/250 is a flexible coupling that connects two shafts while allowing for misalignment, damping vibration and absorbing torsional shock. It combines two standard hubs with an elastic rubber center, making it a good fit for heavy-duty drives that need to transmit high torque with some give. You will find it in mining, cement, steel and similar demanding operations.
This Type A unit, model A-350/250, uses a CN hub arrangement: two standard hubs paired with a rubber center measuring 1130 mm in diameter. Overall length is 885 mm and the assembly weighs 1211 kg. It is rated for a nominal torque of 118750 Nm, with a maximum bore of 250 mm and a pilot bore of 120 mm. These figures make it a robust choice for high-power transmission.
Mills, crushers, high-flow pumps, industrial fans and conveyor drives in cement, mining and steel plants are common installations. Because the rubber element compensates for angular and radial misalignment, bearings and seals see less wear and equipment tends to last longer. Variable loads and frequent starts are typical conditions for this coupling.
When selecting a coupling like this, check the nominal torque your application demands, the shaft diameters you need to join and the surrounding environment. During assembly, align the hubs within the tolerances the manufacturer recommends and use the pilot bores as your reference for final machining. The rubber center tolerates some misalignment, but careful alignment gets the most life out of the elastic element.
If you are looking for an equivalent, send the part number A-350/250 or the model you need by WhatsApp or email. We can point you to variants in the Type A series or alternatives from the brands we supply. Our technical team helps you match the right solution to your application.
To request a quote for this coupling or to ask about other power transmission parts, send the part number by WhatsApp or email. We reply promptly with the information you need for your project.
Dimensions
- Model
- A-350/250
- Configuration
- Two standard hubs (CN)
- Nominal torque
- 118750Nm
- Max bore
- 250mm
- Pilot bore
- 120mm
- Elastic center Ø
- 1130mm
- Overall length
- 885mm
- Weight
- 1211kg
Frequently asked questions
- What does the CN configuration mean on this coupling?
- CN stands for two standard hubs, meaning both hubs are of standard design without special flanges. This is the most common arrangement and allows mounting on keyed shafts. Contact our technical team for other configurations.
- What is the maximum torque the A-350/250 withstands?
- The nominal torque is 118750 Nm according to the manufacturer's specifications. For applications with load peaks, we recommend applying an appropriate service factor. Our team can advise you on the correct selection.
- How do I request a different size or a replacement elastic center?
- Write to us on WhatsApp with the part number A-350/250 or the dimensions you need. We can quote the complete coupling or the replacement elastic center, depending on your requirement. We will reply promptly.