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Steel sprocket with black oxide finish, 15 teeth, 7/8 inch bore, keyway and set screws

Tritan

Tritan 50BS15H 7/8" Bore Sprocket 15T 50 Chain Collectible

SKU CH-E2QX-E27AF

Finished-bore steel sprocket with 15 teeth, 7/8 inch bore, keyway and set screws for 50 chain

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Hardened steel resists wear in heavy-duty drives
  • 15 teeth engage 50 chain for smooth power transfer
  • 7/8 in finished bore with keyway fits shafts directly
  • Black oxide finish protects against corrosion
  • Two set screws lock sprocket securely in place

Precision Power Transmission Sprocket

The Tritan 50BS15H is a finished-bore steel sprocket built for 50 chain size with 15 teeth. It features a 7/8 inch bore diameter, a 3.006 inch pitch diameter and a 3.32 inch outside diameter. The hub measures 2 3/8 inches in diameter with a .657 inch projection and a 1 inch length through bore. It includes a 3/16 inch wide by 3/32 inch deep keyway and two set screws for secure shaft locking. The black oxide finish adds corrosion resistance for industrial environments.

Ideal for Single-Strand Chain Drives

This sprocket suits maintenance teams and OEMs replacing worn components on existing single-strand 50 pitch drives where a 7/8 inch shaft is standard. It is not for buyers who need a different bore size, a multi-strand hub configuration or a higher tooth count for altered speed ratios. Applications requiring stainless steel construction or a detachable hub design should look elsewhere.

Ready-to-Mount Hardware Included

The supplied keyway and two set screws eliminate the need to source separate locking hardware, reducing assembly time on the shop floor. The fixed bore and one-sided hub keep the drivetrain compact without additional spacers. Black oxide coating protects the steel during storage and initial operation before lubrication takes over.

Highlights

  • Hardened steel resists wear in heavy-duty drives
  • 15 teeth engage 50 chain for smooth power transfer
  • 7/8 in finished bore with keyway fits shafts directly
  • Black oxide finish protects against corrosion
  • Two set screws lock sprocket securely in place

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

What chain size must my existing drive use for this 15-tooth sprocket to mesh correctly?

The sprocket is cut for 50 chain with a 5/8-inch pitch, so your drive must run the same chain size and pitch.

Will the 7/8-inch finished bore with 3/16-inch keyway fit the shaft on my older motor?

Yes, if the motor shaft is 7/8 inch diameter and has a matching 3/16-inch wide by 3/32-inch deep keyway slot.

After bolting it on, how do I confirm the 3.32-inch outside diameter is running true?

Rotate the shaft by hand and watch for wobble; a dial indicator on the tooth tips should show minimal run-out.

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