Flexible coupling GUMMI A-155 with integral hub

GUMMI A-155 CI belongs to 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-155 CI and any equivalents.

A flexible coupling from the GUMMI Type A line, the A-155 CI joins two shafts while allowing for angular and radial misalignment, absorbing vibration and torque peaks along the way. The CI designation indicates an integral hub, meaning the hub and the flexible element come as one piece rather than separate parts held by jaws or screws. With a maximum bore of 200 mm, it suits larger shaft diameters, and it is commonly chosen where continuous duty calls for protection of bearings and gears on the drive side.

Reading the reference is straightforward: A-155 identifies the model within the Type A series, and CI tells you the hub is integral. Because there are no external screws or separate jaws, mounting involves fewer components and the assembly holds up well under shock loads and frequent reversals. The bore limit is 200 mm, so this unit fits large-diameter shafts.

You will find this coupling on centrifugal pump drives, fans, conveyor belts, mixers and mills, wherever torque has to pass through with enough give to offset minor angular or radial misalignment. Continuous process equipment in food, chemical or cement operations is another common setting, since unplanned stops carry real cost. The flexible element also helps keep vibration from traveling to bearings and seals downstream.

Selection comes down to a few inputs: shaft diameter, nominal and maximum torque of the application, and ambient conditions such as temperature, oil exposure or dust. Treat the 200 mm bore as a ceiling, not a target. If your shaft runs larger than that, look at a different configuration. Check shaft alignment before you tighten the hubs, since a careful alignment job protects the flexible element and avoids unnecessary stress on the assembly.

For an equivalent or a replacement, send the code A-155 CI on WhatsApp, or share your shaft dimensions and required torque. The team can also quote other Type A configurations, including split hubs or versions with a different bore, depending on what the machine calls for.