Keyway Broaching Services for Precision Internal Slots

At Broaching Technologies, our keyway broaching services are performed using rigid vertical slotting machines that provide precise stroke control and consistent cutting action. This approach allows us to produce accurate internal keyways with reliable depth, width, and surface finish across both prototype and production volumes.

What Is Keyway Broaching?

Keyway broaching is the process of machining a single internal slot within a bore to accept a mating key. This slot allows torque to be transferred from a shaft to a hub while maintaining proper alignment between components.

Broaching Technologies|Keyway Broaching
Broaching Technologies|Keyway Broaching

Why Keyway Broaching Requires Precision Equipment

Keyway broaching requires accurate control of slot width, depth, and straightness to ensure proper fit and load transfer. Variations in geometry can lead to poor alignment, uneven load distribution, or premature wear.

As the exclusive US distributor of CAMS slotting machines, Broaching Technologies operates the same precision equipment we supply to manufacturers, giving us unmatched insight into what these machines can achieve in real production environments.

Keyway Broaching as a Core Capability

Keyway broaching is a core capability at Broaching Technologies, supporting manufacturers that require dependable internal keyways for power transmission and mechanical assemblies.

Sunk Key Broaching

We offer sunk key broaching with precision tolerances using our specialized keyway broaching tools for shafts and gears of varying diameters.

Saddle Key Broaching

Our keyway broaching services include saddle key machining, performed using high-efficiency rotary broaching and keyway cutting machine setups.

Tangent Key Machining

Complex tangent keyways are achieved through precision indexing and broaching systems for seamless torque transmission.

Round Keyway Cutting

Round keyways are formed accurately using both rotary and hex broaching services tailored to the part geometry.

Spline Keyway Broaching

Internal and external spline profiles are produced using slotting machines for keyways and custom internal broach tooling.

Keyseat Machining

We machine keyseats with fast cycle times using horizontal and vertical keyway cutting machines for hubs, pulleys, and more.

Tooling and Engineering Expertise for Keyway Broaching

Keyway broaching performance depends heavily on tooling design and condition. Broaching Technologies designs, maintains, and reconditions custom broach tools to match specific keyway sizes, materials, and tolerance requirements.

Materials We Commonly Broach

Our keyway broaching services support a wide range of materials commonly used in mechanical and power transmission components.

With controlled cutting strategies and rigid machine platforms, we achieve tight tolerances and repeatable surface finishes across these materials.

Industries That Rely on Keyway Broaching

Our keyway broaching services support manufacturers across a wide range of industries where reliable torque transmission and component alignment are essential.

Oil and Gas Equipment

Pump & Fluid Handling

Electric Motors & Power Transmission

Agricultural & Construction Equipment

Aerospace & Defense Components

Medical Device Manufacturing

Why Choose Broaching Technologies for Keyway Broaching?

Specialists in Accurate Internal Keyway Broaching

Broaching Technologies|Keyway Broaching

Ready to Get Started with Keyway Broaching?

If your application requires accurate internal keyways with proper fit and dependable torque transfer, Broaching Technologies delivers precision keyway broaching backed by controlled machining and proven process expertise.

Frequently Asked Questions

What is keyway broaching?

Keyway broaching cuts a single internal slot that allows a shaft key to transmit torque.

When is keyway broaching preferred over spline broaching?

Keyway broaching is preferred for simpler designs requiring reliable torque transfer without multiple internal teeth.

How accurate is keyway broaching?

Keyway broaching produces consistent width, depth, and straightness when performed on rigid, controlled machines.

Can keyways be broached to precise depth?

Yes, keyway depth is precisely controlled using vertical slotting machines with accurate stroke adjustment.

What parts commonly require keyway broaching?

Keyway broaching is commonly used in gears, pulleys, hubs, couplings, and power transmission components.

What materials are suitable for keyway broaching?

Keyways can be broached in steels, stainless steel, aluminum alloys, titanium, and high strength materials.

Is keyway broaching suitable for repeat production?

Yes, keyway broaching is well suited for repeat production due to its consistency and predictable geometry.
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