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Silver aluminium helical beam coupling, 25mm diameter, 30mm length, 5mm to 11mm bore

Unique-Bargains

Unique-Bargains Helical Beam Coupling 5mm to 11mm 25mm Dia 30mm Length

SKU CH-0MQ0-KP1EK

Aluminium helical coupling joins 5 mm to 11 mm shafts with zero backlash and spring absorption of misalignment

  • Zero backlash for precise motion control
  • Spring action absorbs parallel and angular misalignment
  • Connects shafts from 5mm to 11mm diameter
  • Compact 25mm diameter fits tight spaces
  • Aluminium alloy construction keeps weight low

Helical Beam Coupling 5mm to 11mm

This aluminium-alloy helical beam coupling joins shafts from 5 mm to 11 mm. It provides zero-backlash torque transmission for light-to-medium duty motion-control applications such as encoders, lead screws and small pumps.

25 mm diameter 30 mm length build

The 25 mm outside diameter and 30 mm total length keep the assembly compact. A 90-degree screw angle on the two-piece metallic spring allows straightforward mounting while the spring action absorbs parallel, angular and end-play misalignments during operation.

Light-to-medium torque limit

The flexible spring design suits only low-torque shafts; it cannot handle high-torque loads or precision-rigid coupling requirements. Buyers needing rigid high-torque transmission or larger shaft diameters should select a different coupling type.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 80% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

Does the 90-degree screw angle limit the torque the 5-11 mm coupling can transmit?

The 90-degree screw angle is the set-screw orientation; the aluminium-alloy helical beam handles light-to-medium torque and absorbs misalignment by spring action.

Will the 25 mm outside diameter and 30 mm length fit inside my encoder housing?

The coupling measures 25 mm OD and 30 mm overall length; verify your housing bore and axial clearance against those dimensions before ordering.

Do I need to drill the 5 mm and 11 mm bores myself, or are they pre-machined?

Both bores are pre-machined to 5 mm and 11 mm; loosen each set screw, slide the shafts in fully, then tighten both screws evenly.

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