Keyway Machining for Gear and Sprocket Manufacturers
Making quality gears and sprockets is only half the battle—they still need a precise internal keyway to lock into place. That’s where we come in.
At Keyseaters.com, we specialize in internal keyway machining for gear manufacturers, power transmission shops, and OEMs. Whether you’re cutting carbon steel, stainless, or hardened alloy components, we deliver repeatable, high-tolerance keyways with fast turnaround and zero tooling investment.

Built for Power Transmission Applications
Gears and sprockets are torque-critical components. A poorly machined keyway risks backlash, misalignment, or even complete failure in the field.
Our shop is optimized for:
Spur gears
Helical gears
Sprockets (all pitch sizes)
Pulleys and timing wheels
Internal drive hubs and couplings
We hit tight tolerances with zero taper, ensuring a clean engagement with mating shafts.
Better Than Broaching, Faster Than EDM
Why leading gear shops send their parts to us:
No broach tooling required
Ideal for short and mid-size production runs
Compatible with blind bores
Cuts hardened alloys with ease
Rush jobs and same-week delivery available


What We Can Handle
Spec | Capability |
---|---|
Keyway width | 1/8” to 1.5” |
Bore diameter | Up to 24” OD |
Max part weight | 1,500 lbs |
Materials | 1018, 1045, 4140, 17-4, A2, D2, Inconel, etc. |
We’re not just a general machine shop—we’re 100% focused on keyway cutting, so we’ve seen it all.
Industries We Serve
We provide keyway machining services for:

Aerospace
High-precision keyseating for aerospace parts and components.

Automotive
Machines capable of creating custom keyways for automotive transmission and engine parts.

Construction
Heavy-duty keyseating equipment suitable for demanding environments.

Energy & Utility
Machines for keyway cutting in power generation and utility equipment.
Trusted by Gear Shops Nationwide
From local job shops to national OEMs, we help:
Supplement internal capacity
Eliminate the cost of broach tooling
Turn around jobs fast without compromise
We also offer blind shipping for white-label or contract manufacturing support.

Request a Quote Today
Send over your gear drawings, specs, or just the bore size and keyway width—we’ll provide a fast, accurate quote and timeline.