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Steel sprocket with black oxide finish, 11 teeth, 1 1/2 inch bore, keyway and set screws

Tritan

Tritan 80BS11H 1 1/2 in Bore Sprocket 80 Chain Size collectible

SKU CH-3ZZT-J7M8M

Finished-bore steel sprocket with 11 teeth, 1 1/2 in bore, keyway and two set screws for 80 chain

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • 11-tooth design matches 80 chain pitch
  • 1 1/2 in fixed bore with keyway for secure fit
  • Black oxide finish resists corrosion on steel body
  • 01 in outside diameter fits standard drive layouts
  • Two set screws and 1.05 in hub projection lock sprocket in place

Finished-bore sprocket for 80 chain

The Tritan 80BS11H is a single-strand sprocket with an 11-tooth profile and a 1 1/2 inch finished bore. It is supplied new for buyers maintaining or assembling power-transmission drives that use 80 chain pitch. The steel body carries a black-oxide finish and includes a 3/8 inch wide by 3/16 inch deep keyway plus two set screws for positive shaft locking.

Black-oxide steel runs without added lubrication

The black-oxide coating provides a degree of corrosion resistance and helps the sprocket operate cleanly in normal service. With a 3.55 inch pitch diameter and 4.01 inch outside diameter, the tooth form meshes smoothly with 80 chain, keeping vibration and noise low during routine power transfer. The 1.05 inch hub projection and 2 13/16 inch hub diameter keep the assembly compact on the shaft.

Fixed-bore design limits sustained overloads

Because the bore is fixed at 1 1/2 inches with a standard keyway, the sprocket cannot be re-bored for larger shafts if loading increases. Under continuous heavy torque the black-oxide surface and set-screw retention rely on proper installation torque; the 1 5/8 inch length through bore gives adequate bearing contact but offers no provision for additional cooling or lubrication channels.

Highlights

  • 11-tooth design matches 80 chain pitch
  • 1 1/2 in fixed bore with keyway for secure fit
  • Black oxide finish resists corrosion on steel body
  • 01 in outside diameter fits standard drive layouts
  • Two set screws and 1.05 in hub projection lock sprocket in place

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

How do I install the 1 1/2 in bore sprocket onto the shaft without damaging the keyway?

Align the 3/8 in wide by 3/16 in deep keyway with the shaft key, slide the sprocket on, then tighten both set screws evenly against the shaft flats to secure the 1 5/8 in length through bore.

What maintenance will the steel sprocket with black oxide finish need after extended use?

Inspect the 11 teeth for hooking or uneven wear, check the 4.01 in outside diameter for runout, and reapply light oil to the chain contact surfaces to protect the black oxide coating.

At what point does the 3.55 in pitch diameter limit power transmission under continuous load?

The 3.55 in pitch diameter determines the maximum chain wrap and torque capacity; sustained loads beyond the chain 80 rating will accelerate tooth wear and elongate the chain pitch first.

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