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Two-piece aluminum shaft collar with alloy steel screws

Ruland Manufacturing

Ruland Manufacturing SP-6-A Shaft Collar 2-Piece 3/8 In Aluminum

SKU CH-07KK-CZ686

A two-piece aluminum shaft collar with a 3/8 inch bore and 1.03 inch clearance diameter for secure shaft clamping

  • Product typeCouplings, Collars & Adapters
  • Two-piece design enables quick installation without shaft removal
  • 2024 aluminium construction provides lightweight strength and corrosion resistance
  • 3/8 inch bore fits standard fractional shafts precisely
  • 03 inch clearance diameter avoids interference with adjacent components
  • Alloy steel screw delivers reliable clamping force for secure hold

Shaft Collar 3/8 Inch Aluminum

This two-piece clamp collar fits a 3/8 inch round bore and is machined from 2024 aluminum. It provides a secure grip on shafts without marring the surface, making it suitable for positioning components in light-duty power transmission assemblies.

Installation With Two-Piece Design

The split construction allows the collar to be installed or removed without sliding it over the end of the shaft, reducing downtime during adjustments. Over-tightening the alloy steel screws can distort the aluminum clamp, so apply only enough torque to hold the position firmly.

Capacity And Limits For Light Loads

The collar handles radial positioning and light axial loads in applications such as guide rails, sensor mounts or small pulleys. It is not intended for high-torque drives, heavy vibration environments or situations where a keyed connection is required.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 693 comparable items (median $35.99).

Specifications

Product
Product typeCouplings, Collars & Adapters

Questions about this item

How do I verify the SP-6-A collar is seated correctly after installation?

Tighten both alloy-steel clamp screws evenly until the 2-piece collar grips the 3/8 in shaft firmly with no axial play; the 1.03 in clearance diameter should sit concentric and the 11/32 in width should appear uniform around the bore.

What comes with the SP-6-A shaft collar and what must I source separately?

The box contains one 2-piece aluminum collar (2024 alloy, 7/8 in OD) with two alloy-steel clamp screws already fitted; no shaft, keys, set screws or lubricant are included.

Which SP-6-A variant should I choose for a 3/8 inch round shaft?

Select the SP-6-A with 3/8 in bore diameter, 7/8 in outside diameter, 11/32 in width and 2024 aluminum construction — the only version in this listing that matches those dimensions.

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