Custom machined part
Plastic cylinder sleeves
- Job
- Reline a worn bore
- Keeps
- Your existing assembly
- Starting point
- Worn sleeve, drawing or bore size
- Quantity
- One to production
Machined plastic sleeves that reline a worn cylinder or bore, so the moving part runs on a replaceable liner and you keep the assembly you have.
- ±0.002"–±0.005" on critical dimensions
- Family owned in Aurora since 1986
- Expedited service for breakdowns
How relining works
Reline instead of replace
When a bore wears, the whole cylinder or assembly doesn’t have to go. A plastic liner takes the wear instead, and can be replaced again later. Replacing metal with plastic
What stays
- The cylinder or housing
- The rest of the assembly
- The moving part, if it’s sound
What’s replaced
- The plastic liner
- And again later, when it wears
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We size the sleeve
From your drawing, or from the bore and the part that runs in it.
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We machine the sleeve
Turned to your sizes in a plastic suited to the duty.
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It takes the wear
The moving part runs on the sleeve, which can be replaced again later.
What defines the sleeve
Five questions that define your sleeve
A worn sleeve may have changed size, roundness or wall. We measure it, account for the wear and confirm the sizes with you.
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What goes inside it, and what moves?
Why it matters The moving part sets the bore and the wear the sleeve sees.
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Does it sit still in the bore, or move with a shaft?
Why it matters It decides which surface holds the sleeve and which one slides.
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Is this a repair, or a new build?
Why it matters A repair has to match a worn bore; a new build can follow the drawing.
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Which surface holds it, and which slides?
Why it matters One side needs grip, the other needs clearance.
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Are your sizes for the loose part or the installed part?
Why it matters Pressing a sleeve in can make its bore smaller.
Getting a quote
Start with what you have
Any one of these is enough to get a quote started. Pick yours to see what helps.
Send the drawing and we machine to it.
- Quantity
- Plastic, if specified
- Loose or installed sizes
Upload drawings, CAD files or photos on the quote form.
Send the old sleeve with the bore size.
- What moves inside it
- What’s worn
- Quantity
Upload drawings, CAD files or photos on the quote form.
Send the bore and moving-part sizes. We’ll ask for the rest.
- Prepared bore size
- Moving part size
- Sleeve length
Upload drawings, CAD files or photos on the quote form.
Plastics for sleeves
Common choices, and why
Machined in Aurora
How your sleeves are made
±0.002"–
±0.005"
On critical dimensions, depending on the plastic.
- Sleeves CNC turned so the outside and bore stay concentric.
- Specs and CAD files kept, so the next reline matches the last.
Evaluating a supplier? See the shop and how we check the work.
Buyer questions
Cylinder sleeve FAQs
Something else? Call (630) 904-2525.
No. We machine the sleeve to your sizes; preparing the bore and fitting the sleeve stay with you or your maintenance team.
We hold ±0.002" to ±0.005" on critical dimensions, depending on the plastic. We review your drawing and confirm the critical dimensions with your quote.
Timing depends on the sleeve, plastic and quantity, and comes with your quote. For an emergency breakdown, ask about our expedited service.
Not a sleeve?
Find the right part
We machine almost any plastic part. If yours isn’t listed, describe it in a quote request.
Standard quote
Ready to send your sleeve details?
Experienced help from your first quote to the finished part.