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Black oxide steel sprocket with 15 hardened teeth for 40 chain

Tsubaki

Tsubaki 40H15 Sprocket 40 Chain 15 Teeth

SKU CH-0MKT-4B0S8

Carbon steel sprocket for size 40 chain with 15 hardened teeth, 2.652 in outside diameter, 2.405 in pitch diameter and .284 in tooth width

  • TypeSprockets
  • Hardened teeth resist wear for longer service life
  • Carbon steel grade 1045 provides high strength and durability
  • Black oxide finish protects against corrosion in harsh environments
  • Split taper bushing design enables quick installation and removal
  • Precise 15-tooth geometry ensures smooth engagement with 40 chain

Precision Power-Transmission Component

The Tsubaki 40H15 is a hardened-tooth sprocket engineered for single-strand 40 chain drives. It suits maintenance engineers and OEM assemblers who need a reliable 15-tooth driver for conveyors, packaging lines or agricultural equipment. The carbon-steel body with black-oxide finish resists corrosion in demanding industrial environments. Buyers requiring a different tooth count, multi-strand capability or stainless-steel construction will need another part.

Build Integration Requirements

This sprocket mounts on an H1 split-taper bushing, so the matching bushing and a compatible shaft key are essential for installation. The 1 in length through bore and 2.5 in hub diameter determine the axial space the assembly occupies on the shaft. With a pitch diameter of 2.405 in and an outside diameter of 2.652 in, chain wrap and guard clearance must be verified in the layout. The hardened teeth extend service life under high-cycle loading.

Included Hardware Benefits

The sprocket ships without a bushing, allowing the user to select the exact bore size for their shaft. Heat-treated teeth at 0.284 in width maintain profile accuracy and reduce chain wear over unhardened alternatives. Black-oxide coating provides immediate corrosion resistance without additional surface preparation. Together these features lower long-term maintenance intervals on the drive line.

Highlights

  • Hardened teeth resist wear for longer service life
  • Carbon steel grade 1045 provides high strength and durability
  • Black oxide finish protects against corrosion in harsh environments
  • Split taper bushing design enables quick installation and removal
  • Precise 15-tooth geometry ensures smooth engagement with 40 chain

Specifications

TypeSprockets

Questions about this item

How many teeth engage the 40 chain before wear limits service life?

The sprocket has 15 hardened teeth made from 1045 carbon steel with a .284 in tooth width to resist wear under load.

What heat builds up in the hub when the sprocket runs continuously?

The 1 in length through bore and 2.652 in outside diameter on 1045 steel dissipate heat from chain friction during sustained operation.

Which split-taper bushing size must I already have to mount this sprocket?

It requires an H1 split-taper bushing; the hub diameter is 2 1/2 in with .716 in projection and 1.409 in width with bushing installed.

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