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Black oxide steel sprocket with ten teeth and 5/8 inch bore

Tritan

Tritan 40BS10H 5/8 in Bore 10-Tooth Sprocket Collectible

SKU CH-SGSP-FN40F

A 10-tooth steel sprocket with 5/8 in bore, keyway and set screws for #40 chain

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • 10-tooth design meshes precisely with #40 chain
  • 5/8 in bore with keyway locks onto shaft securely
  • Black oxide finish resists corrosion for longer life
  • Two set screws included prevent sprocket slip under load
  • 84 in outside diameter fits compact drive assemblies

Precision Chain Drive Component

This 10-tooth steel sprocket fits 40-series roller chain with a 1/2-inch pitch and a 5/8-inch finished bore. It includes a 3/16-inch keyway and two set screws for positive shaft locking in power transmission builds.

Mechanical Fit Limits

The fixed bore accepts shafts up to 5/8 inch diameter only, with a hub projection of .591 inch and a 1 1/4-inch hub diameter. Single-strand chain engagement is defined by the 1.618-inch pitch diameter and 1.84-inch outside diameter.

Replaces Worn 40-Chain Sprockets

It upgrades from damaged or undersized sprockets on existing 40-chain drives where the shaft diameter matches exactly. The jump is worth it when the keyway depth of 3/32 inch and black-oxide finish are required for the application.

Highlights

  • 10-tooth design meshes precisely with #40 chain
  • 5/8 in bore with keyway locks onto shaft securely
  • Black oxide finish resists corrosion for longer life
  • Two set screws included prevent sprocket slip under load
  • 84 in outside diameter fits compact drive assemblies

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

Should I pick the 10-tooth or a different tooth count for my 40 chain?

The 10-tooth version gives a 1.618 in pitch diameter and 1.84 in outside diameter; choose a higher tooth count if you need a larger driven sprocket or a smaller one for higher driven speed.

What does the 1.618 in pitch diameter mean once the sprocket is mounted on a shaft?

It is the effective diameter where the 40 chain engages, so chain speed equals shaft rpm multiplied by 1.618 in divided by 2.

Does the 5/8 in bore with 3/16 in keyway and two set screws lock securely to a standard shaft?

Yes, the fixed 5/8 in bore includes a 3/16 in wide by 3/32 in deep keyway plus two set screws for positive drive and axial retention.

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