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Black oxide steel sprocket, 18 teeth, 1 inch bore with keyway

Tritan

Tritan 40BS18H 40 Chain 18T 1in Bore Keyway Collectible

SKU CH-96M5-4TG88

Finished-bore steel sprocket with 18 teeth for 40 chain, 1 in bore, keyway and set screws included

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Precision power transmission with 18-tooth steel sprocket
  • Secure 1-inch bore fit using 1/4-inch keyway and dual set screws
  • Durable black oxide finish resists wear in chain drives
  • Compact 3.14-inch outside diameter suits tight installations
  • Ready for ANSI 40 chain with 1/2-inch pitch compatibility

Finished-Bore Sprocket for #40 Chain

This TRITAN 40BS18H sprocket is a new power-transmission component with an 18-tooth profile cut for single-strand #40 roller chain. It ships with a finished 1-inch bore that includes a standard keyway and two set screws for positive shaft locking.

For Maintenance Teams Standardising on #40 Drive

The sprocket suits technicians replacing a worn unit on existing #40 chain drives where a 1-inch keyed shaft is already specified. Buyers needing a different bore size, a split hub for quick removal, or a multi-strand configuration should look at other listings.

Eighteen Teeth on a 2.879-Inch Pitch Diameter

At 18 teeth the sprocket delivers a 3.14-inch outside diameter and 1-inch length through bore, providing standard wrap for #40 chain at moderate speeds. The 0.716-inch hub projection and 2 5/16-inch hub diameter limit use where shaft spacing is tighter than those dimensions.

Highlights

  • Precision power transmission with 18-tooth steel sprocket
  • Secure 1-inch bore fit using 1/4-inch keyway and dual set screws
  • Durable black oxide finish resists wear in chain drives
  • Compact 3.14-inch outside diameter suits tight installations
  • Ready for ANSI 40 chain with 1/2-inch pitch compatibility

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

What chain pitch and size does the 18-tooth sprocket require?

The sprocket is made for 40 chain with a 1/2 in pitch and single-strand width.

Will the 1 in bore with 1/4 in keyway fit the shaft on my existing drive?

The bore is fixed at 1 in with a 1/4 in wide by 1/8 in deep keyway and two set screws for locking.

How can I confirm the sprocket is seated correctly after installation?

Measure the outside diameter to 3.14 in and the hub projection to .716 in; both should match the specs.

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