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Black oxide steel sprocket with 40 teeth, 1 inch bore and keyway

Tritan

Tritan 40BS40 40-tooth sprocket 1 in bore collectible

SKU CH-W0Z5-CDRFV

Steel sprocket with 40 teeth, 1 in bore and keyway fits 40 chain pitch

  • Product typeBearings, V-belts & Power Transmission Equipment
  • Product colorTransparent
  • 40-tooth steel sprocket meshes with 40 chain for reliable power transmission
  • 1-inch finished bore with keyway and two set screws locks securely on shafts
  • Black oxide finish resists corrosion during storage or display
  • 65-inch outside diameter matches standard 40-series dimensions
  • Hub projects 0.841 inch for compact mounting in tight spaces

TRITAN 40-Tooth Sprocket with 1-Inch Bore

This TRITAN sprocket features a finished 1-inch bore with keyway and two set screws for secure shaft mounting. It is cut for single-strand 40 chain and carries 40 teeth on a steel body with black oxide finish. The hub measures 3 1/2 inches in diameter with a projection of .841 inches and a length through bore of 1 1/8 inches. It suits maintenance crews and machinery builders replacing worn drive components.

Upgrading from worn or damaged 40-chain sprockets

A jump is warranted when the existing sprocket shows hooked teeth, excessive wobble, or a stripped keyway that lets the hub spin on the shaft. The black oxide finish adds corrosion resistance compared to bare steel, extending service life in damp or outdoor environments. Swapping during a scheduled shutdown avoids unplanned downtime on conveyors, agricultural equipment, or industrial drives.

Fits 1-inch shafts with standard 1/4-inch keyway

The fixed bore and dual set screws lock the sprocket without needing a separate bushing, freeing up axial space on short shafts. The 6.65-inch outside diameter and 6.373-inch pitch diameter match standard 40-chain geometry, so existing chain length and guard clearances remain unchanged. Builders must verify shaft diameter and key dimensions before installation.

How it compares

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

Price $45.99
Pricier than about 73% 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

Will the 1 in bore with 1/4 in keyway width and 1/8 in keyway depth fit my existing shaft?

The sprocket has a fixed 1 in bore, a 1/4 in keyway width and a 1/8 in keyway depth, so it matches shafts made to those dimensions.

How do I secure the sprocket on the shaft and what step is often missed?

Two set screws are included; after aligning the key in the 1/4 in keyway, tighten both set screws firmly — forgetting the second screw is the common oversight.

When will the black-oxide finish on the 40-tooth steel sprocket need attention?

The black-oxide coating on the steel teeth resists corrosion; inspect the 40 teeth periodically and replace the sprocket once tooth profiles show visible wear.

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