Posted by Austin B on | Comments Off on Motor Shaft Keyway Machining – Keyways for Electric Motors and Generators

Keyway Machining for Motor and Generator Shafts

If you build motors or generators, you already know—every rotor shaft needs a precise internal keyway to lock in place and transmit torque.

At Keyseaters.com, we specialize in fast, repeatable keyway cutting for electric motor and generator OEMs across the U.S. Whether you’re working with mild steel, 4140, or hardened stainless, we deliver spec-accurate slots without broaching, long lead times, or tooling hassles.

Keyway Broaching for Food Augers

Designed for Scalable, Repeatable Output

We partner with:

  • Motor and generator OEMs

  • Industrial electric power system suppliers

  • Pump and fan motor manufacturers

  • Wind/solar generator part fabricators

  • Repair and rewind shops

Need 5 pieces or 500? We’ve got you covered—with quick turnarounds and tight tolerances, every time.

Common Applications We Support

  • Rotor shafts

  • Stator couplings

  • Endbell hubs

  • Pulley drive interfaces

  • Custom generator drive components

Our process supports blind bore keyways and can handle both rough stock and finished parts.

Conveyor Pulley

Fast, Precise Keyways—No Broaching Required

CapabilityDetail
Keyway Widths1/8” – 1.5”
Tolerance Range±0.0015” typical
Material Compatibility1018, 1045, 4140, 17-4, etc.
Max Bore SizeUp to 24” OD
Max Part Weight1,500 lbs
Blind Bore Capable✅

We use vertical keyseating to eliminate broaching lead times and tool costs, especially helpful in R&D, prototyping, or mid-volume production.

Other 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.

We Fit Right Into Your Supply Chain

  • Blanket orders and repeat production welcome

  • White-label and blind shipping options

  • Same-week turnaround available on standard specs

  • Zero broach tooling investment required

Whether you’re building for HVAC, energy, automation, or transportation—we help you hit deadlines without compromising precision.

Let’s Quote Your Next Order

Send your rotor shaft drawing, part specs, or volume breakdown—we’ll get you a fast, accurate quote and expected timeline.

Request a Quote