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Two-piece stainless steel shaft collar, 1-1/4 inch bore, satin finish

Ruland Manufacturing

Ruland Manufacturing SP-20-SS 2-Piece Shaft Collar 1-1/4 In 303 SS

SKU CH-8H9D-MY8K4

A 2-piece stainless steel shaft collar clamps onto a 1-1/4 inch round bore with a 2-1/16 inch outside diameter and 1/2 inch width

  • TypeCouplings, Collars & Adapters
  • 303 stainless steel resists corrosion in harsh environments
  • Two-piece clamp design allows installation without shaft disassembly
  • 1-1/4 inch bore fits standard shaft sizes precisely
  • 3 inch clearance diameter provides ample component space
  • Half-inch collar width delivers strong axial holding power

Precision 2-Piece Shaft Collar

The Ruland SP-20-SS is a 2-piece clamp-style shaft collar manufactured from 303 stainless steel. It fits a 1-1/4 inch round bore and provides axial positioning on shafts without marring the surface. The split design allows installation or adjustment without removing other components.

Suits maintenance and OEM assemblies

This collar suits maintenance teams and OEM builders who need a corrosion-resistant clamp that can be fitted in situ on a 1-1/4 inch shaft. It is not for applications requiring a keyway, a threaded bore or a different bore diameter. Buyers needing a 1-piece solid collar should look at another style.

1-1/4 inch round bore

The single specification that decides fit is the 1-1/4 inch round bore diameter. The collar's 2 1/16 inch outside diameter and 2.3 inch clearance diameter follow from this bore size. Verify the shaft diameter before ordering to ensure proper clamping function.

Highlights

  • 303 stainless steel resists corrosion in harsh environments
  • Two-piece clamp design allows installation without shaft disassembly
  • 1-1/4 inch bore fits standard shaft sizes precisely
  • 3 inch clearance diameter provides ample component space
  • Half-inch collar width delivers strong axial holding power

Specifications

TypeCouplings, Collars & Adapters

Questions about this item

Should I choose the 2-piece or a 1-piece collar for a 1-1/4 inch shaft?

The 2-piece design clamps around the shaft without sliding it over the end, so it installs in place on assembled equipment and avoids marring the shaft surface.

How does the 2 1/16 inch outside diameter affect fit inside my machine?

The 2 1/16 inch OD plus the 2.3 inch clearance diameter determine the radial space needed; verify your housing bore and adjacent parts can accommodate those dimensions.

Does the 303 stainless steel screw gall when I tighten the collar?

The screw is also 303 stainless steel; using an anti-seize lubricant on the threads reduces galling risk during installation and adjustment.

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