Magneto Bearings

Magneto Bearings Online in the UK

Looking for magneto bearings for a motor, generator, vintage engine, or some other high-speed application? Bolton Engineering Products Ltd stocks a range of magneto ball bearings in different sizes, so you should be able to find the right fit for your equipment without much trouble.

Magneto bearings are a specialised type of deep groove ball bearing — the main differences are a single-shoulder design and a shallower inner groove than you'd get on a standard deep groove bearing. That makes them quicker to fit and remove, and it's why they suit applications with high rotational speeds and relatively light loads.

Have a browse through the range below, and just double-check the bearing reference and dimensions before you order.

Why Choose Magneto Bearings?

Getting the right bearing matters for smooth running, especially if the application involves continuous or high-speed rotation. Magneto bearings tend to get used wherever a compact bearing with easy installation and removal is needed.

You'll typically find them in:

• Motors and generators
• Magneto ignition systems
• Vintage and classic vehicle engines
• Small high-speed machinery
• Precision equipment and instrumentation

They're often fitted in pairs, though that depends on the application and load. If you're not sure whether a magneto bearing is right for your equipment, our team can help you work it out.

Magneto Bearing Sizes and Options

We carry magneto bearings across a range of bore sizes and dimensions, so it's easier to match one to your existing component.

Before buying, check the inside diameter, outside diameter and width against your existing bearing or equipment spec. The dimensions above are listed against each individual reference for exactly that reason.

How to Choose the Right Magneto Bearing

Not sure which one you need? Start by measuring what's already fitted:

1. Measure the bore (inside diameter) — this needs to match the shaft.
2. Check the outside diameter — this decides whether it'll fit into the housing.
3. Check the width — make sure there's enough room for installation.
4. Match the reference — E10, E14, E20 and so on each point to a specific set of dimensions.
5. Think about the application — make sure it suits your speed, load and running conditions.

If you're replacing a bearing that's already in use, the simplest approach is usually to read off the reference number and dimensions from the old one and match it directly.

Magneto Bearings vs Standard Deep Groove Bearings

The right choice really comes down to the equipment, the dimensions, and the speed and load it'll be under. Don't assume a standard deep groove bearing is a safe swap for a magneto bearing just because the sizes look similar.

Magneto Bearing Cage Options

These bearings come with a couple of different cage configurations — fibreglass-reinforced polyamide 66, or brass plate.

Which one suits you depends on the bearing spec and the conditions it'll be running in. If you're unsure, get in touch before placing an order.

Buy Magneto Bearings in the UK

Whether it's for a vintage engine, a generator, a motor, or another high-speed application, getting the size right is what makes the difference between a proper fit and a bearing that fails early.

Browse the range above and pick out the reference and dimensions you need. Can't find the right size, or not sure which magneto ball bearing suits your application? Get in touch with Bolton Engineering Products Ltd and we'll help you sort it out.

Frequently Asked Questions

What is a magneto bearing?

It's a specialised deep groove ball bearing with a single-shoulder design and a shallower inner groove, typically used where you need high rotational speed and relatively low loads.

What are magneto bearings used for?

Most commonly motors, generators and vintage vehicle engines, though they show up in other equipment too where their design fits the job.

What size magneto bearing do I need?

That comes down to your shaft and housing dimensions. Check the inside diameter, outside diameter and width of your current bearing and match them against the replacement's spec.

Are magneto bearings suitable for high-speed applications?

Yes — that's really what they're built for. Just make sure the specific speed and load ratings line up with what your equipment needs.

Can magneto bearings replace standard ball bearings?

Not automatically. They're related, but the single-shoulder and shallower-groove design gives them different characteristics. Always check the manufacturer's requirements and the exact dimensions before swapping one in.

Do magneto bearings need to be installed in pairs?

Often, yes, but it depends on the equipment and load requirements. If you're unsure, check the manufacturer's spec or ask a bearing specialist.