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Steel sprocket with black oxide finish, 11 teeth, 3/4 inch bore, keyway, set screws

Tritan

Tritan 40BS11H X 3/4 Sprocket Finished Bore Keyway SS 40 Chain Size collectible

SKU CH-M95Z-3WA7M

Steel sprocket with 11 teeth for 40 chain, 3/4 inch bore, keyway and set screws included

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • 11-tooth sprocket meshes with 40 chain for precise power transfer
  • 3/4 in finished bore with keyway locks onto shaft without slippage
  • Black oxide finish resists corrosion in demanding environments
  • Two set screws secure hub for vibration-resistant mounting
  • .591 in hub projection keeps assembly compact in tight spaces

Precision Sprocket for Chain Drive Systems

The Tritan 40BS11H is a finished-bore steel sprocket designed for single-strand roller chain drives. It suits maintenance technicians and machinery builders who need a direct replacement on existing shafts.

Eleven-Tooth Pitch Diameter Matches Chain 40

The sprocket carries 11 teeth on a 1.775 in pitch diameter for 1/2 in pitch chain, size 40. This tooth count and pitch combination fixes the speed ratio and chain engagement; verify both before ordering.

Keyway and Set Screws Simplify Shaft Locking

A 3/16 in wide by 3/32 in deep keyway plus two set screws secure the 3/4 in bore to the shaft. Installers should confirm key stock dimensions and set-screw torque to prevent slippage.

Highlights

  • 11-tooth sprocket meshes with 40 chain for precise power transfer
  • 3/4 in finished bore with keyway locks onto shaft without slippage
  • Black oxide finish resists corrosion in demanding environments
  • Two set screws secure hub for vibration-resistant mounting
  • .591 in hub projection keeps assembly compact in tight spaces

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

What does the 11-tooth count mean once the sprocket is on a shaft?

With 11 teeth on a 1/2 in pitch, the sprocket gives a 1.775 in pitch diameter and a 2 in outside diameter, so each revolution moves the chain by exactly 11 half-inch pitches.

How does the finished bore with keyway and two set screws lock onto a shaft?

The 3/4 in bore includes a 3/16 in wide by 3/32 in deep keyway plus two set screws, providing positive drive and axial retention on a matching keyed shaft.

What hub and clearance dimensions must the mounting space accommodate?

The hub measures 1 3/8 in diameter with a 0.591 in projection, and the overall length through the bore is 7/8 in, so allow at least that much axial room.

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