Buses for mechanics

Machine heads: essential for stable tuning machines

Machine head bushings ensure a firm and stable attachment of your tuners to the headstock. Without properly fitting bushings, machine heads can develop play, which affects tuning stability and playing comfort. Whether you're replacing a worn set or building a new neck, the right bushings make the difference between a solid installation and persistent problems.

In this category, you'll find various bushings for a wide variety of guitars and basses. From vintage models to modern versions, the right size and finish will ensure your tuners fit perfectly.

What are bushings for mechanics?

Bushings – also called bushings – are metal or brass sleeves that are placed in the drilled holes in the headstock. They guide the tuning peg's shaft and ensure a tight fit in the wood. This keeps the peg stable and prevents wear and tear on your instrument's headstock.

There are roughly two common types:

• Press-fit bushings : are pressed into the wood without threads.
• Screw bushings : have a screw thread and are tightened into the headstock.

The variant you need depends on the type of mechanism and the diameter of the holes drilled.

Why good bushings are important

A well-fitting bushing prevents the mechanism from moving. Even minimal play can cause tuning instability. A secure mounting is essential, especially with heavy use or on guitars with thicker strings.

With high-quality bushings for mechanics you benefit from:

• Better vocal stability
• Less wear on the headstock
• Tighter and more professional finish
• Reliable installation during upgrades or replacements

Working on a guitar project or replacing old tuners? Always check if your existing bushings still fit properly or if replacement is necessary.

What size mechanical bushings do you need?

The correct size is crucial. The outer diameter of the bushing must exactly match the drilled hole in your guitar's headstock. A bushing that's too small will create play, while a bushing that's too large can damage the wood.

Please note the following points:

• Outer diameter : usually expressed in millimeters (e.g. 8 mm, 10 mm).
• Inner diameter : must match the axle of your mechanism.
• Type of mechanism : vintage or modern.
• Mounting method : pressure fit or screw thread.

Not sure about the size? Measure the hole in your headstock accurately with a caliper. This will prevent any surprises during installation.

Buying advice: how to choose the right bushings

When choosing bushings for mechanics, it is important that you look not only at the diameter, but also at compatibility with your mechanics.

1. Check your current situation

Do you have existing mechanisms you want to replace? Check if the old bushings are reusable. If they are damaged or worn, replace them immediately.

2. Tune to your guitar type

Vintage guitars often use smaller push-in bushings, while modern guitars typically have larger screw-in bushings. Choose a version that suits the style and construction of your instrument.

3. Pay attention to the finish

Bushings are available in various finishes, such as chrome, nickel, or gold. Match the color to your mechanics for a sleek look.

Frequently asked questions about bushings

Can I reuse bushings?

That's possible, provided they still fit snugly and show no signs of damage. When in doubt, replacing them is often the safest option.

What happens if my bushings are too loose?

Loose bushings can cause unstable tuners and tuning problems. In some cases, a thin layer of wood glue can help, but usually it's better to use the correct size.

Are bushings universal?

No. The size and type vary by machine head and guitar. Always check the specifications before ordering.