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Steel sprocket with 12 teeth, black oxide finish, 1 1/4 inch bore with keyway

Tritan

Tritan 50BS12H 12-Tooth Sprocket 1 1/4 in Bore Keyway Collectible

SKU CH-AX92-DSHWF

A 12-tooth steel sprocket with a 1 1/4 inch bore, keyway, and set screws for 50 chain

  • Product typeBearings, V-belts & Power Transmission Equipment
  • Product colorTransparent
  • Precision power transfer with 12-tooth 50 chain sprocket
  • Secure shaft grip via 1/4 in keyway and dual set screws
  • Durable steel construction resists wear in heavy use
  • Exact fit ensured by 2.415 in pitch diameter spec
  • Ready to install with included set screws and black oxide finish

Sprocket for #50 chain

The Tritan 50BS12H is a finished-bore sprocket designed for single-strand #50 roller chain with a 5/8 in pitch. It suits maintenance teams and equipment builders who need a direct replacement on shafts measuring 1 1/4 in diameter.

Steel construction with black oxide finish

The steel body carries a black oxide coating that resists corrosion in typical industrial environments. Two set screws and a 1/4 in wide by 1/8 in deep keyway lock the sprocket to the shaft, while the 1 in length through bore keeps the assembly compact.

Fixed hub handles continuous rotation

The one-sided hub measures 2 in diameter and projects 0.657 in, providing a stable mount for sustained duty cycles. With a 2.71 in outside diameter and 2.415 in pitch diameter, the 12-tooth profile maintains consistent engagement without the vibration that can appear on smaller tooth counts under load.

How it compares

Measured against everything we stock in Fan Collectibles & Memorabilia, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 83% of the 1,367 comparable items (median $26.99).

Specifications

Product
Brand nameTRITAN
Product typeBearings, V-belts & Power Transmission Equipment
Product colorTransparent

Questions about this item

How do I install the 12-tooth sprocket on a 1 1/4 in shaft using the 1/4 in keyway and the two set screws?

Slide the sprocket onto the shaft so the 1/4 in wide by 1/8 in deep keyway engages the shaft key, then tighten both set screws against the key and shaft to lock the 1 in length through bore in place.

What maintenance or replacement will the black-oxide finished steel sprocket need when running on a 50 chain?

Inspect the 12 teeth for hook wear and the 2.71 in outside diameter for elongation; replace the sprocket when tooth profiles no longer mesh cleanly with the 5/8 in pitch chain.

What is the first limit that appears under sustained high-speed use with the 2.415 in pitch diameter?

Centrifugal force on the 2 in hub and 0.657 in projection grows with rpm, so the hub-to-shaft fit and key shear stress become the limiting factors before tooth wear.

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