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Black oxide steel sprocket with 25 teeth, 1-inch bore and keyway

Tritan

Tritan 50BS25H 25T 50 Chain 1in Bore Keyway Sprocket

SKU CH-H4CC-80989

Steel sprocket with 25 teeth for 50 chain, 1in bore with keyway and set screws

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Precision fit for 50 chain with 1 in bore and keyway
  • 25-tooth steel sprocket delivers reliable power transfer
  • Black oxide finish resists corrosion in harsh environments
  • Includes two set screws for secure shaft locking
  • 32 in outside diameter matches standard drive dimensions

Sprocket for 50 Chain with 25 Teeth

This finished-bore sprocket fits 50 chain pitch and carries 25 teeth. It is built from steel with a black oxide finish and includes two set screws. The 1 in bore has a 1/4 in wide by 1/8 in deep keyway for positive drive. It suits power-transmission builds that need a single-strand hub on one side.

Replaces worn 50-pitch sprockets

Swapping to this unit restores correct pitch diameter of 4.987 in and outside diameter of 5.32 in when the old sprocket shows hook wear or stripped keyway. The jump is worth it if your chain runs on a 1 in shaft and you need the hub projection of .907 in to clear adjacent components.

Check shaft diameter and keyway dimensions before

Verify the shaft measures exactly 1 in and that the existing key matches 1/4 in width by 1/8 in depth. Confirm the hub diameter of 3 in and length through bore of 1 1/4 in fit within your guard or frame spacing. Ensure the two set-screw holes align with your shaft flats or drill points.

Highlights

  • Precision fit for 50 chain with 1 in bore and keyway
  • 25-tooth steel sprocket delivers reliable power transfer
  • Black oxide finish resists corrosion in harsh environments
  • Includes two set screws for secure shaft locking
  • 32 in outside diameter matches standard drive dimensions

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

Will a 1-inch shaft with a 1/4-inch keyway fit this sprocket?

The bore is 1 inch with a 1/4-inch wide by 1/8-inch deep keyway, matching those shaft dimensions.

How do I secure the sprocket onto the shaft?

Two set screws are included; tighten them over the keyway to lock the sprocket in place.

When should I replace this sprocket?

Replace it when the 25 teeth show visible hooking or the 5.32-inch outside diameter wears unevenly.

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