GUMMI A-140/140 flexible coupling

GUMMI A-140/140 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-140/140 and any equivalents.

When two shafts need to stay connected while the machine works under changing load, the GUMMI A-140/140 flexible coupling does the job. Its rubber center sits in compression between two standard hubs, so angular and radial offset is taken up inside the coupling instead of reaching the bearings. Maintenance and purchasing teams specify it on pumps, fans, conveyors and other driven equipment where the drivetrain has to be protected from vibration and torque spikes.

The unit belongs to the GUMMI Type A line and comes in the two standard hub (CN) arrangement. Reading the code, the A-140/140 figure points to the bore capacity of the hubs. Nominal torque is 8500 Nm and the largest bore the hubs accept is 140 mm, starting from a 45 mm pilot hole that can be machined out to match the shaft. Around that sits an elastic center of 403 mm diameter; assembled, the coupling measures 380 mm in length and weighs 94 kg.

Because of this size and torque capacity, the model shows up on centrifugal pumps, industrial fans, mills, mixers and conveyors. In each case the rubber element handles angular and radial misalignment, keeps vibration from traveling along the shaft line and softens overloads. Process plants in the chemical and food sectors, where uptime and straightforward servicing matter, are frequent users of this configuration.

Before mounting, check that the two shafts are aligned to the tolerances given by the manufacturer and that the bore matches the shaft diameter. The 45 mm pilot hole gives you room to machine the final bore up to 140 mm. Model selection should follow nominal torque, operating speed and the nature of the load. During service, look at the rubber center at regular intervals for signs of wear or hardening.

If another size or a comparable model is needed, send the part number or your shaft dimensions through WhatsApp or email. The team can point you to other Type A configurations or to similar options from the same brand, including units with comparable torque and dimensions, and replies promptly so your project keeps moving.