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Black oxide steel sprocket 24 teeth 50 chain 1 1/4 inch bore keyway set screws

Tritan

Tritan 50BS24H 1 1/4in Bore 24T 50 Chain Sprocket Collectible

SKU CH-3XKC-D7J66

Steel chain sprocket with 24 teeth for size 50 chain, 1 1/4 inch bore with keyway and set screws

  • Product typeBearings, V-belts & Power Transmission Equipment
  • Product colorTransparent
  • Precise chain engagement with 24-tooth 50 pitch design
  • Accurate shaft alignment via 1 1/4 inch bore with keyway
  • Durable steel construction resists wear in power transmission
  • Secure mounting using two included set screws
  • Corrosion-resistant black oxide finish protects steel surfaces

Finished-bore sprocket for 50 chain

The Tritan 50BS24H is a steel power-transmission sprocket with a 1 1/4 in fixed bore, keyway and two set screws included. It suits maintenance teams and machinery builders who need a direct replacement for worn 50-chain drives. Collectors of industrial hardware may also value the black-oxide finish and original packaging.

Single-strand 5/8 in pitch constraint

The sprocket accepts only single-strand 50 chain at 5/8 in pitch; multi-strand or different-pitch chain will not engage. Hub projection of .907 in and hub diameter of 3 in limit the space available on the shaft, so adjacent components must clear those dimensions. No other chain sizes or strand counts are compatible.

24-tooth count determines speed ratio

With 24 teeth the sprocket delivers a 4.788 in pitch diameter and 5.12 in outside diameter, fixing the drive ratio for a given shaft speed. Buyers who need a different ratio must select another tooth count; this part cannot be altered to change speed or torque output.

How it compares

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

Price $36.99
Pricier than about 64% 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

Should I pick the 24-tooth version or a different tooth count for my 50 chain?

The 24-tooth sprocket gives a 4.788 in pitch diameter and 5.12 in outside diameter; choose it when those dimensions match your shaft speed and centre distance requirements.

What does the 4.788 in pitch diameter mean once the sprocket is mounted on the shaft?

It defines the effective radius where the 5/8 in pitch chain engages, so chain speed equals shaft rpm multiplied by 4.788 in divided by two.

How does the 1 1/4 in fixed bore with 1/4 in keyway limit installation?

The bore only fits a 1 1/4 in shaft; the 1/4 in wide by 1/8 in deep keyway and two set screws lock rotation and axial position on that shaft size.

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