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Small silver stainless steel universal joint with set screws, 18 by 8 mm

Unique-Bargains

Unique-Bargains 2 mm universal joint coupling 18 x 8 mm

SKU CH-MQEC-142XZ

Connects two 2 mm shafts with a rotatable 18 × 8 mm stainless-steel universal joint

  • Size or dimensions18 × 8 mm / 0.71 in × 0.31 in (L*D)
  • Compact 18 mm length fits tight steering assemblies
  • Rotatable joint transmits torque through misaligned shafts
  • 2 mm bore matches small-diameter shafting precisely
  • Stainless steel resists corrosion in harsh environments
  • Set screws lock coupling securely to both shafts

Universal Joint 2 mm Bore

This stainless-steel universal joint couples two 2 mm shafts in a compact 18 mm by 8 mm body. Set screws secure each bore for reliable torque transmission and angular alignment. The silver-tone finish resists corrosion in damp or chemical environments. Net weight is 6 g and the package contains a single coupler.

Suits light-duty shaft links

Builders linking small-diameter shafts in instrumentation, models or light automation will find the 2 mm bore a direct fit. The fixed 2 mm to 2 mm sizing cannot adapt to larger or mismatched shafts, so buyers needing different bore diameters or higher torque capacity must look elsewhere. No additional hardware or adapters are included in the pack.

2 mm bore diameter decides fit

The only specification that determines compatibility is the 2 mm inner diameter on both ends. Measure the shafts precisely; even a slight deviation will prevent the set screws from clamping correctly. If the shafts are not 2 mm, this coupling will not work.

How it compares

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

Price $4.99
Cheaper than about 83% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameUnique Bargains
Size & build
Size or dimensions18 × 8 mm / 0.71 in × 0.31 in (L*D)

Questions about this item

How do I install the 2 mm bore universal joint and which step is often missed?

Slide each 2 mm shaft into the 18 mm long stainless steel body until it seats, then tighten both set screws securely; the step often missed is torquing the second set screw after the first shaft is locked.

What maintenance will the stainless steel universal joint need over time?

Inspect the set screws for loosening and the joint for corrosion or wear after prolonged use; re-tighten or replace the 6 g coupler if play develops.

What limit appears first when the 18 mm universal joint runs under sustained load?

The 2 mm bore diameter and set-screw holding power limit torque capacity before the stainless steel body yields.

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