We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small brass cylinder with two different bore sizes, gold finish

Unique-Bargains

Unique-Bargains Brass Motor Shaft Coupling 2.3mm to 3mm

SKU CH-AZD4-X05EF

Connects 2.3 mm and 3 mm motor shafts with a 0.79" long brass coupler featuring a 0.08" thread diameter

  • Product typeCable Connectors
  • Connects 2.3 mm to 3 mm shafts
  • Brass construction resists wear and corrosion
  • Compact 0.79 in length fits tight RC spaces
  • 2 mm thread secures motor couplings firmly

RC Motor Shaft Coupler

This brass coupling connects a 2.3mm motor shaft to a 3mm driven shaft in radio-controlled aircraft and boat models. The gold-tone connector has a 2mm thread diameter and measures 0.79in long by 0.35in wide. It is supplied new for hobbyist drivetrain alignment.

Upgrade From Loose Press Fits

Builders replacing a simple friction fit or a worn plastic coupler gain a more rigid, concentric joint that reduces vibration. The step from 0.09in to 0.12in inner diameter suits mismatched shaft pairs where a single-bore coupler cannot be used.

How it compares

Measured against everything we stock in Wire Connectors & Cable Ties, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 90% of the 1,040 comparable items (median $13.99).

Specifications

Product
Brand nameUnique Bargains
Product typeCable Connectors

Questions about this item

What shaft diameters does the 2.3mm to 3mm brass coupling accept?

The coupling joins a 2.3 mm motor shaft to a 3 mm driven shaft.

How do I secure the coupling onto the motor shaft?

Tighten the 2 mm set screw against the flat on the shaft; skipping the flat lets the coupling slip.

More in Wire Connectors & Cable Ties

Similar items