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Black oxide steel shaft collar 30 mm bore 54 mm OD 15 mm wide

Ruland Manufacturing

Ruland Manufacturing MCL-30-F Shaft Collar 30 mm 15 mm 54 mm

SKU CH-GSNJ-SPX7V

A one-piece carbon-steel clamp collar with a 30 mm bore, 15 mm width and 54 mm outside diameter

  • TypeCouplings, Collars & Adapters
  • Clamp-style design enables quick installation without shaft damage
  • 30 mm bore fits standard metric shafts precisely
  • 15 mm width provides secure grip in tight assemblies
  • 1215 lead-free carbon steel resists corrosion with black oxide finish
  • 2 mm clearance diameter clears adjacent components easily

30 mm Metric Shaft Collar for Power Transmission

The Ruland Manufacturing MCL-30-F is a one-piece clamp collar with a 30 mm round bore and a 54 mm outside diameter. It is made from 1215 lead-free carbon steel with a black oxide finish. Maintenance teams and machine builders use it to locate bearings, sprockets or other components on metric shafts without marring the surface.

Clamp Force Retention Under Continuous Operation

The single alloy-steel screw applies uniform circumferential pressure that resists axial shift when vibration or reversing loads are present. Because the collar is machined from solid 1215 grade steel, the clamping force does not relax as quickly as it can on split-hub designs. The 15 mm width distributes the load across a broad contact area to limit fretting during extended duty cycles.

Simple Installation With One Hex Key

Installation requires only a hex key to tighten the integral screw to the manufacturer’s recommended torque. The one-piece construction means there are no loose halves to align or drop. Over-tightening is the most common error; it can distort the bore and reduce holding power. The black oxide coating meets California Proposition 65 labelling requirements for listed chemicals.

Highlights

  • Clamp-style design enables quick installation without shaft damage
  • 30 mm bore fits standard metric shafts precisely
  • 15 mm width provides secure grip in tight assemblies
  • 1215 lead-free carbon steel resists corrosion with black oxide finish
  • 2 mm clearance diameter clears adjacent components easily

Specifications

TypeCouplings, Collars & Adapters

Questions about this item

Does the 30 mm bore clamp generate noticeable heat or noise when the shaft runs continuously?

The collar is a passive 1215 carbon-steel clamp with no moving parts, so it adds no heat or noise of its own.

What shaft diameter must I already have for this 30 mm bore collar to fit?

You need a 30 mm round shaft; the bore is metric and not threaded.

Will the 54 mm outside diameter clear the bearings or hubs I am keeping on the same shaft?

The collar measures 54 mm OD with a 59.2 mm clearance diameter, so verify that adjacent components allow at least that much radial space.

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