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Black oxide steel chain sprocket with 11 teeth and 1/2 inch bore

Tritan

Tritan 40BS11H 40 Chain Sprocket 11 Teeth 1/2 in Bore

SKU CH-JEH8-NBE0F

Steel chain sprocket with 11 teeth, 1/2 in bore and black-oxide finish for #40 chain

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Fits 40 chain with 11 teeth for precise drive engagement
  • 1/2 in finished bore with two set screws enables quick shaft mounting
  • No keyway design simplifies installation on plain shafts
  • Black oxide finish on steel resists corrosion in harsh environments
  • 775 in pitch diameter matches standard 40 chain geometry

Sprocket for 40 chain with 11 teeth

This finished-bore sprocket fits 40 pitch roller chain and carries 11 teeth on a 1/2 in bore. It is made from steel with a black oxide finish and has a 1.775 in pitch diameter. The hub projects .591 in and measures 1 3/8 in across. Two set screws secure the bore without a keyway.

Bore size and chain pitch

The critical match is a 1/2 in bore on 40 pitch chain; any other bore diameter or chain number will not engage. The fixed bore has no keyway, so torque transmits only through the set screws. Verify shaft diameter and chain size before ordering.

Straightforward shaft mounting

Slide the sprocket onto the shaft, align the two set screws over the flat or keyway area, and tighten. The absence of a keyway means the screws carry all rotational load, so check screw tightness after initial run-in. No special tools are required beyond a hex driver for the set screws.

Highlights

  • Fits 40 chain with 11 teeth for precise drive engagement
  • 1/2 in finished bore with two set screws enables quick shaft mounting
  • No keyway design simplifies installation on plain shafts
  • Black oxide finish on steel resists corrosion in harsh environments
  • 775 in pitch diameter matches standard 40 chain geometry

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

What does the 1.775 in pitch diameter mean for chain speed on my machine?

The 1.775 in pitch diameter sets the effective radius where the chain engages, so each revolution advances the chain by that circumference and fixes the driven speed ratio.

How does the ANSI 40 chain standard limit what I can pair with this sprocket?

The ANSI 40 standard fixes the pitch at 1/2 in, so only 40-series roller chain with matching 1/2 in pitch will mesh correctly with the 11 teeth.

Will the 1/2 in fixed bore with two set screws hold on my 1/2 in shaft without a keyway?

Yes, the 1/2 in fixed bore fits a 1/2 in shaft directly and the two included set screws clamp onto the shaft to transmit torque without a keyway.

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