/ Perfectly fitting profiles

Keyway broaching and keyseating

From 3 to 24 mm, with consistent dimensions and a precise fit.
Fully manufactured in-house, allowing us to respond quickly and continuously monitor quality.

/ Power and precision in one profile

Keyway broaching & slotting: precision-fit connections

Keyway broaching or lapping for precise mechanical connections at BO-Solutions.

A gear on a shaft, a clutch on a hub, a pulley on a motor shaft: they all have one thing in common, the connection must be low-backlash and infallible.

With our internal broaching capacity, we create:

  • Keyway profiles with minimal clearance
  • High transmission force without “knocking” or wear
  • Reproducible quality, piece after piece

We combine machining with broaching and slotting in-house. The result? Shorter delivery times, no risk of quality loss, and lower total costs.

TECHNICAL CAPACITY: KEYWAY FROM 3 TO 24 MM

We broach keyway and cut keyway profiles for various applications – from compact precision parts to robust drive components.

Broaching specifications

  • Keyway width: 3mm – 24mm
  • Internal keyways: in hubs, couplings, gears, sleeves…
  • External profiles: where structurally required
  • Precise fit through single clamping
  • Suitable for all machinable metals

With keyway broaching or slotting in a single clamping operation, the geometry remains concentric and aligned with the rest of the part.

This eliminates the need for post-processing or realignment.

APPLICATIONS: FOR POWER TRANSMISSION

Keyway broaching is primarily used for parts where rotation and power transmission come together.

Typical applications:

  • Keyways in gears and timing belt pulleys
  • Hubs and couplings on drive shafts
  • Pumps, fans and motors
  • Power transmission connections in machine building and OEM

Do you have a shaft-hub connection that currently has too much play, or a design where you are unsure about the correct keyway dimension?

We are happy to brainstorm with you. 

/ Everything about keyway broaching or keyway cutting

One partner for machining, keyway broaching & keyseating

The great added value of BO-Solutions: we combine CNC turning/milling with broaching and numerous other finishing processes.

That gives you:

  • One metalworking partner from raw part to finished product
  • Less coordination between different suppliers
  • Better control of fit, concentricity, and dimensions
  • Efficient process for prototypes, small series, and high-mix/low-volume

You supply a drawing, photo, 3D model, or existing part – we provide a manufacturable solution with the correct keyway class and tolerance.

Keyway gears — key broaching of internal keyways by BO-Solutions

/ Request for quotation

Keyway broaching or slotting?
Request a quote.

Need a precision keyway machined or an existing connection optimized?

Provide us with a drawing or photo of the part. We will advise on the correct keyway width, fit, and machining sequence.

Here is how to get in touch:

  • Use the contact form and upload the files.

  • Email info@bo-solutions.be for technical advice

  • Call +32 51 24 89 32 for direct consultation

BENEFITS OF keyway broaching AT BO-SOLUTIONS

Why is in-house broaching and/or keyseating a plus for your project?

  • No outsourcing: Fewer links, less risk, less waiting time.
  • Faster turnaround time: Milling/turning + broaching within the same process.
  • Complete quality control: One quality system, one point of contact.
  • Ideal for power transmission connections: Think of shafts, hubs, gears, couplings…

Technical questions? Contact us

/ FAQ

Frequently asked questions about Broaching

What is keyway broaching?

Broaching is a machining operation in which a special tool – the broach – is drawn (or pressed) through or along the material in a single continuous motion. The broach has a series of successive cutting teeth, each removing slightly more material. In this way, a precise profile is created in a single operation, for example, a keyway.

A broaching operation is the entire process in which, with the aid of a broach:

  • An internal keyway is installed in a bore
  • An external profile is formed
  • A shape or profile with high tolerances and repeatability is created

The major advantage of broaching is that you obtain a ready-made profile with accurate dimensions and shape in a single setup, without multiple consecutive milling or parting operations.

A broaching machine is used to:

  • To make keyways in hubs, couplings, and gears
  • To create profiles and form holes that are more difficult with standard drills/milling cutters
  • To provide power-transmitting connections with a precise, low-backlash fit

In short: a broaching machine converts a single linear operation into a perfectly formed profile, ideal for parts used in drive trains and rotating systems.