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Black oxide steel sprocket 18 teeth 1/2 in bore

Tsubaki

Tsubaki 35B18 sprocket 35 chain 18 teeth 1/2 in bore

SKU CH-05FY-P2JNC

Steel sprocket with 18 teeth for 35 chain, 1/2 in plain bore and keyway

  • TypeSprockets
  • Precision fit for #35 chain with 18 teeth and 2.16 in pitch diameter
  • Durable 1045 steel construction with black oxide finish resists wear
  • Secure mounting via 1/2 in plain bore with keyway and included set screws
  • Compact 2.35 in outside diameter suits tight machine spaces
  • Hub projects 0.582 in for stable single-strand power transmission

Precision drive component

The Tsubaki 35B18 sprocket is a steel power-transmission part built for 35 chain size with 18 teeth and a 1/2 inch plain bore. It suits machinery that requires a single-strand, single-pitch drive with a 2.16 inch pitch diameter and a 2.35 inch outside diameter.

Steel construction and finish

The sprocket is machined from 1045 grade steel and coated with a black oxide finish. A 1/8 inch wide by 1/16 inch deep keyway and included set screws lock the hub to the shaft. The hub projects .582 inch and measures 1 3/4 inch in diameter.

Build integration

The 3/4 inch length through bore and 1 3/16 inch maximum bore diameter define the mounting envelope. The plain bore and keyway suit shafts prepared for a keyed connection. It does not suit applications needing a taper-lock bush or a through-bore design without a hub projection.

Highlights

  • Precision fit for #35 chain with 18 teeth and 2.16 in pitch diameter
  • Durable 1045 steel construction with black oxide finish resists wear
  • Secure mounting via 1/2 in plain bore with keyway and included set screws
  • Compact 2.35 in outside diameter suits tight machine spaces
  • Hub projects 0.582 in for stable single-strand power transmission

Specifications

TypeSprockets

Questions about this item

How do I install the Tsubaki 35B18 sprocket and what step is often missed?

Slide the sprocket onto the 1/2 in bore shaft, align the 1/8 in keyway with the shaft key, then tighten the included set screws securely; the step often missed is fully seating the key before locking the screws.

What maintenance or replacement will this sprocket need over time?

Inspect the 18 teeth regularly for hooking or uneven wear; replace the sprocket when tooth profiles show visible deformation or when chain elongation exceeds recommended limits.

What is the first limit that appears under sustained high-speed or heavy-load use?

The 1045 steel hub and black oxide finish resist wear, but sustained load will first show as accelerated tooth wear on the 2.16 in pitch diameter before hub or bore issues develop.

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