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Steel sprocket, 18 teeth, black oxide finish, 1 inch bore with keyway

Tritan

Tritan 80BS18H 80 Chain 18T 1 in Bore collectible

SKU CH-BW51-A37DY

A finished-bore sprocket for 80 chain with 18 teeth, 1 in bore, keyway, set screws, and 6.27 in outside diameter

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Precision chain engagement with 18-tooth 80-pitch design
  • Secure keyed connection via 1/4 in keyway and set screws
  • Corrosion-resistant black oxide finish on hardened steel
  • Exact 1 in bore fit for direct shaft mounting
  • Verified 6.27 in outside diameter for space planning

Finished-bore sprocket for 80 chain

This TRITAN 80BS18H sprocket is a single-strand power-transmission component with 18 teeth and a 1 in finished bore that includes a keyway and two set screws. It suits maintenance teams and OEM builders who need a drop-in replacement for existing 80-chain drives. Buyers who need a different bore size or a multi-strand hub should look elsewhere.

Check chain size and shaft keyway

Verify that the drive uses 80 chain pitch and that the shaft measures 1 in with a 1/4 in wide by 1/8 in deep keyway slot. The sprocket hub projects .925 in and has a 4 1/4 in diameter, so confirm clearance inside the guard or housing. The fixed-bore design means the unit cannot be re-bored or adapted to a taper-lock bushing.

Black-oxide finish and included hardware

The steel body carries a black-oxide coating that resists surface corrosion during storage and initial operation. Two set screws and the machined keyway are supplied, removing the need to source separate locking hardware. No lubricant, tensioning tool or alignment gauge is bundled with the sprocket.

Highlights

  • Precision chain engagement with 18-tooth 80-pitch design
  • Secure keyed connection via 1/4 in keyway and set screws
  • Corrosion-resistant black oxide finish on hardened steel
  • Exact 1 in bore fit for direct shaft mounting
  • Verified 6.27 in outside diameter for space planning

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

Does the sprocket arrive with the set screws already in the box or do I need to order them separately?

Two set screws are included with the sprocket so no separate purchase is required.

How do I decide between the 18-tooth version and a different tooth count for my 80 chain drive?

Choose the 18-tooth sprocket when your design calls for a 5.759 in pitch diameter and a 6.27 in outside diameter on a 1 in bore.

What does the 6.27 in outside diameter mean when the sprocket is mounted on the shaft?

It defines the maximum envelope the chain will occupy, so guards and adjacent components must clear a 6.27 in circle centred on the 1 in bore.

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