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Small brass shaft coupling, gold finish, 2.3mm x 2mm with four screws

Unique-Bargains

Unique-Bargains 2.3mm x 2mm Brass Motor Shaft Coupling

SKU CH-ZTNZ-NRXSE

A brass motor-shaft coupling joins 2.3 mm and 2 mm shafts for RC airplane or boat models

  • Product typeOther Accessories
  • Connects 2.3 mm and 2 mm motor shafts
  • Brass construction resists wear and corrosion
  • Supplied with four installation screws for secure fit
  • Compact 0.79" length suits tight RC airframes
  • Weighs only 5 g to minimise added mass

Brass Motor Shaft Coupling for RC Models

This brass coupling connects a 2.3 mm motor shaft to a 2 mm threaded shaft on RC airplanes or boats. It suits hobbyists repairing or building small electric-powered models that use these specific shaft diameters.

Check Shaft Diameters Before Ordering

Verify that your motor output shaft measures 2.3 mm and the driven shaft uses a 2 mm thread. The coupling length is 0.79 in and the outer diameter is 0.35 in, so confirm there is enough clearance inside the fuselage or hull for the 0.9 cm long part.

Replaces Worn or Lost Brass Couplers

This part replaces a damaged or missing brass coupling of the same 2.3 mm by 2 mm specification. The upgrade is worth it when the original coupler strips, corrodes or loosens, causing vibration or power loss in the drivetrain.

How it compares

Measured against everything we stock in Boat Engine Components & Locks, at today’s prices. Recalculated every night.

Price $8.99
Pricier than about 81% of the 21 comparable items (median $6.99).

Specifications

Product
Brand nameUnique Bargains
Product typeOther Accessories

Questions about this item

Does the 2.3mm x 2mm brass coupling include the install screws, or must I source them separately?

The package contains one motor shaft coupling and four install screws, so no separate screw purchase is required.

Is the 2.3mm bore version the only option, or does this listing offer other bore sizes?

This listing is for the single 2.3mm by 2mm size; no alternative bore diameters are offered.

Will the 0.79in length and 2mm thread diameter fit the motor and propeller shaft on my RC airplane?

The coupling measures 0.79in long with a 2mm thread diameter, designed to join a 2.3mm motor shaft to a 2mm propeller shaft on RC airplane or boat models.

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