
Flexible coupling GUMMI A-45/50 with ES spacer 100
- Brand
- GUMMI
- Category
- Power transmission
- Subcategory
- Couplings
- Series
- Tipo A
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Description
GUMMI A-45/50 ES 100 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-45/50 ES 100 and any equivalents.
For drives where the pump has to come out without disturbing the piping, the GUMMI A-45/50 ES 100 answers the need: a flexible coupling from the Type A line that links motor and machine shaft while taking up misalignment and vibration. The ES build adds a spacer between the hubs, and in this reference that span measures 100 mm, so the rotating equipment can be pulled back and the shaft freed without shifting either machine.
Read the code first. A-45/50 identifies the model inside the GUMMI Type A family; ES tells you a spacer is part of the assembly; 100 is the flange-to-flange distance in millimeters. The spacer sits between the two flexible hubs, and once it is taken out there is room to separate the shafts with no axial movement of the pump or the motor. Units ship as a complete assembly with flexible elements and mounting flanges.
Typical duty is back-pull-out centrifugal pumps, where the impeller and casing are drawn out to the rear and the installation stays as it is. Compressors, fans, conveyors and machine tools with motor-side service needs also use this arrangement, as do water treatment plants and chemical and food processing lines.
Sizing calls for shaft diameters, motor power and rpm, and the load character of the driven machine. Type A accepts limited angular and radial misalignment, but shafts must be lined up carefully before the flexible elements are tightened. Because the spacer sets the gap between shaft ends, check that the space on site matches the flange and the equipment.
For an equivalent, send part number A-45/50 ES 100 or the application data: shaft diameter, power, rpm and distance between ends. If your hubs are still serviceable, the spacer alone can be quoted.
Dimensions
- Model
- A-45/50
- Configuration
- With spacer (ES)
- Spacer
- 100mm
Frequently asked questions
- What does ES mean in part number A-45/50 ES 100?
- ES means the coupling comes with a spacer, and 100 is the flange-to-flange distance in millimeters. That layout lets the equipment be removed without moving the shafts, which suits back-pull-out pumps.
- Can I replace only the spacer?
- Yes, the spacer is available on its own when the hubs and flexible elements are still in good condition. Send the full coupling part number or the spacer dimensions you need.
- How do I request a different spacer size?
- Send the current part number and the flange-to-flange distance you require. With that information we can review the GUMMI line and propose the variant that fits your equipment.

