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Carbon steel shaft collar, one-piece set-screw type, 1 1/4 inch bore, 2 inch outer diameter, 11/16 inch wide, matte grey finish

Climax Metal Products

Climax Metal Products C-125 Shaft Collar 1 1/4 in Carbon Steel

SKU CH-0K07-2ZCZ8

Secures a 1 1/4 in shaft with a one-piece carbon-steel collar using a set-screw design

  • TypeCouplings, Collars & Adapters
  • Precise 1 1/4 in bore fits shafts securely
  • One-piece carbon steel collar resists deformation under load
  • 1211 grade steel provides consistent machining quality
  • 11/16 in width distributes clamping force evenly
  • Included carbon steel set screw locks collar in place

1 1/4-Inch Carbon-Steel Shaft Collar

The Climax Metal Products C-125 is a one-piece set-screw collar machined from 1211-grade carbon steel. It fits a 1 1/4-inch round bore and provides a simple axial stop or component mount for maintenance, prototype or light-production machinery.

2-Inch OD with 11/16-Inch Width

The collar measures 2 inches across the outside and 11/16 inch wide, giving enough clamping surface for moderate radial loads while keeping the stack height low. The single set screw locks directly on the shaft, so holding power drops off on hardened or undersized shafts and under reversing or high-vibration duty.

Replaces Split Collars in Fixed-Position Jobs

Builders who need a permanent reference point on a 1 1/4-inch shaft can swap a two-piece clamp for this solid ring and save assembly time. It is not suited for frequent repositioning, for shafts larger than the stated bore, or for applications that demand a keyway or a threaded bore.

Highlights

  • Precise 1 1/4 in bore fits shafts securely
  • One-piece carbon steel collar resists deformation under load
  • 1211 grade steel provides consistent machining quality
  • 11/16 in width distributes clamping force evenly
  • Included carbon steel set screw locks collar in place

Specifications

TypeCouplings, Collars & Adapters

Questions about this item

Will the 1 1/4 in bore fit the existing 1 1/4 in shaft in my older machine?

Yes, the bore diameter is 1 1/4 in and the round bore type matches standard shafts of that size, so it will slide onto the shaft you already have.

How can I confirm the set screw is holding the collar securely after installation?

Tighten the carbon-steel set screw until the collar no longer rotates or slides along the shaft, then test by applying light torque by hand to verify it stays fixed.

Does the package include the set screw or do I need to buy one separately?

The 1-piece carbon-steel collar comes with its matching carbon-steel set screw already installed, so no separate hardware is required.

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