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Metal shaft collar, 5/16 inch bore, steel finish, pack of 100

Climax Metal Products

Climax Metal Products C-031X100 Shaft Collar 5/16 in Steel PK100

SKU CH-CFFH-DHN8V

Pack of 100 steel shaft collars with 5/16 in bore and 5/8 in outside diameter

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Round 5/16 in bore fits shafts precisely
  • 5/8 in outside diameter keeps assembly compact
  • 5/16 in collar width saves axial space
  • Carbon steel grade 1211 resists wear well
  • Pack of 100 collars supports volume needs

Precision Shaft Collar 5/16 in Bore

The Climax Metal Products C-031X100 is a one-piece set-screw collar with a 5/16 in round bore and a 5/8 in outside diameter. It is machined from Grade 1211 carbon steel with a matching carbon-steel screw. The pack contains 100 pieces for volume maintenance or OEM assembly work.

Sustained Clamping Performance

The single-piece design distributes clamping force evenly around the shaft without the gap found on split collars. Grade 1211 steel resists deformation under continuous vibration and axial loading. The 5/16 in width provides a broad contact surface that maintains holding power over extended duty cycles.

Replaces Split or Undersized Collars

This collar upgrades from two-piece styles that can loosen under reversing loads or from narrower collars that mar softer shafts. The jump is worth it when a permanent, high-torque connection is required on 5/16 in diameter shafts in power-transmission builds.

Highlights

  • Round 5/16 in bore fits shafts precisely
  • 5/8 in outside diameter keeps assembly compact
  • 5/16 in collar width saves axial space
  • Carbon steel grade 1211 resists wear well
  • Pack of 100 collars supports volume needs

Specifications

BrandCLIMAX METAL PRODUCTS
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

Will the carbon-steel screw on this 5/16 in collar loosen from vibration when the shaft runs all day?

The 1-piece carbon-steel collar with its integral set screw clamps directly on the 5/16 in bore, so normal vibration does not back the screw out.

Does the 5/8 in outside diameter fit inside my existing 5/8 in bore pillow block?

The collar OD is 5/8 in (0.63 in clearance), so it matches a 5/8 in bore housing without modification.

Can I use these 1211-grade steel collars on a 5/16 in hardened shaft I already own?

Yes, the 1211 carbon-steel collar and screw are designed for standard 5/16 in round shafts, including hardened ones.

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