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Black oxide steel sprocket, 11 teeth, 1 inch bore, 4.01 inch diameter

Tsubaki

Tsubaki 80B11 Sprocket 80 Chain 11 Teeth collectible

SKU CH-V4QZ-DR1R6

An 11-tooth steel sprocket for 80 chain with a plain 1-inch bore and black-oxide finish

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Precision 11-tooth engagement for smooth 80-chain drive
  • 1045-grade steel body resists wear in high-load use
  • Black-oxide finish protects against corrosion and galling
  • Plain 1-inch bore with keyway simplifies shaft mounting
  • 01-inch outside diameter fits compact power-transmission layouts

Industrial sprocket for chain drives

The TSUBAKI 80B11 sprocket is a plain-bore steel component designed for single-strand 80 chain pitch applications. It suits maintenance teams and machinery builders who need a direct replacement part for power-transmission systems. The 11-tooth profile and 1 in bore diameter match standard ANSI roller chain dimensions for light to moderate load duties.

Set screws and keyway secure mounting

The unit ships with set screws and a 1/4 in wide by 1/8 in deep keyway already machined, so installers can lock the sprocket to a shaft without additional machining. A 1 9/16 in length through bore provides full hub engagement while the 1.05 in hub projection keeps the assembly compact inside guard enclosures.

Single-pitch chain limits speed and load

The 3.55 in pitch diameter and 4.01 in outside diameter constrain the maximum chain speed and tensile load to the ratings for ANSI 80 single-pitch chain. Builders needing higher torque capacity or multi-strand configurations must select a different sprocket series, as this model supports only one strand of 1 in pitch chain.

Highlights

  • Precision 11-tooth engagement for smooth 80-chain drive
  • 1045-grade steel body resists wear in high-load use
  • Black-oxide finish protects against corrosion and galling
  • Plain 1-inch bore with keyway simplifies shaft mounting
  • 01-inch outside diameter fits compact power-transmission layouts

Specifications

BrandTSUBAKI
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

How often should the set screws on the 11-tooth sprocket be checked and retightened?

Inspect the set screws after the first few hours of operation and then at regular maintenance intervals to maintain secure hub attachment.

What is the first wear limit reached on the 1045 steel teeth during continuous running?

Tooth profile wear on the 11-tooth pitch diameter will appear before hub or bore wear under sustained load.

How much heat does the black-oxide 80 chain sprocket generate when running all day?

Steel construction dissipates heat through the 2 13/16 in hub; temperature rise stays modest with proper chain lubrication.

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