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Black oxide steel sprocket, 15 teeth, plain 5/8 inch bore

Tritan

Tritan 50B15H 5/8 MPB Sprocket collectible

SKU CH-ESA1-G5MJS

A 15-tooth steel sprocket with a 5/8-inch plain bore for 50 chain size, finished in black oxide

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Fits 50 chain with 15-tooth precision
  • Plain 5/8 bore slides on without keyway
  • 32 in outside diameter clears tight guards
  • Black oxide finish resists corrosion in wet conditions
  • Steel hub handles high-torque loads reliably

Steel Sprocket for 50 Chain Size

The Tritan 50B15H is a plain-bore steel sprocket designed for single-strand roller chain with a 5/8-inch pitch. It carries 15 teeth and a 5/8-inch bore diameter, making it suitable for power-transmission builds that require a compact drive component. The black-oxide finish adds surface protection in industrial environments.

Heat Noise and Power in Normal Use

As a passive metal component it generates no operational noise and draws no electrical power. The steel body dissipates frictional heat through its 3.32-inch outside diameter and 2 3/8-inch hub without forced cooling. Normal use produces only the heat inherent to chain engagement at the 3.006-inch pitch diameter.

Upgrade Path and When It Matters

This sprocket replaces a worn or undersized unit on existing 50-series chain drives where a 15-tooth, 5/8-inch plain bore is specified. The jump is worth it when the current sprocket shows tooth elongation or when a new shaft diameter matches the 5/8-inch bore without additional machining. Buyers needing a keyway, a different tooth count, or a larger maximum bore of 1 1/2 inches should look elsewhere.

Highlights

  • Fits 50 chain with 15-tooth precision
  • Plain 5/8 bore slides on without keyway
  • 32 in outside diameter clears tight guards
  • Black oxide finish resists corrosion in wet conditions
  • Steel hub handles high-torque loads reliably

Specifications

BrandTRITAN
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

How do I install the 5/8 in plain-bore sprocket on the shaft, and what step is often missed?

Slide the 5/8 in bore onto the shaft, align the 15 teeth with the 50 chain, then drill and tap for a set screw since none are provided.

What maintenance or replacement will the steel sprocket need after extended service?

Inspect the 15 teeth and 3.32 in outside diameter for wear; replace when tooth profile degrades or chain elongation exceeds limits.

What limit appears first when the sprocket runs continuously under load?

The 3.006 in pitch diameter and 0.657 in hub projection concentrate stress, so tooth wear or hub deflection will occur before other failures.

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