Materials · Mechanical plastics

Nylon machining

Custom nylon parts CNC machined to your drawing or sample: sheaves, sprockets, gears, wear rings and more. Machined in our Aurora, Illinois shop.

Nylon at a glance

Full name
Polyamide (PA)
Also called
PA 6, PA 6/6, cast nylon, Nylatron®
Known for
Toughness, wear resistance and strength
In water
Takes on moisture and grows slightly
Grades
Extruded, cast, oil-filled, MoS₂-filled and more

Parts in nylon

Nylon parts we machine

The parts we see most often in nylon, and why it suits each job. We machine any nylon part to your drawing or sample, listed here or not.

Need a different nylon part? Send the drawing, or the old part, and we’ll quote it. Request a quote

Is nylon right for the part?

Where nylon works, and where another plastic may suit

General guidance on how nylon behaves. If your drawing specifies a nylon grade, we machine to it. Compare acetal and nylon

Where it works

Toughness
Takes impact and shock loads without cracking.
Wear
Resists wear in gears, sheaves and sliding parts.
Strength
Strong and stiff for a plastic, so it carries load.
Quiet running
Runs quieter than metal and is gentler on mating metal parts.
Light weight
Much lighter than the metal parts it often replaces.
Lubricated grades
Oil-filled and MoS₂-filled grades run with less friction.

Where another plastic may suit

Where another plastic may suit
If the part needs Often used instead
Wet service or tight fits Nylon takes on moisture and grows. Acetal stays closer to size.
Abrasive or wet wear surfaces For wet, abrasive sliding, UHMW usually lasts longer and absorbs almost no water.
Strong acids Strong acids attack nylon.
Higher temperatures Heat-stabilized grades help, but its heat limit is moderate.

Precision in nylon

How we machine nylon

±0.002"–±0.005" On critical dimensions, depending on the plastic

Nylon takes on moisture from the air and grows slightly, so it usually sits between the middle and the wider end of our range. We confirm the critical dimensions with your quote.

  1. Moisture

    Nylon takes on moisture from the air and grows slightly as it does.

    We allow for it on close fits and bores, and confirm the critical dimensions with your quote.

  2. Large parts

    Cast nylon comes in large rod, tube and plate.

    We machine large sheaves, gears and wear parts from one piece of cast stock.

  3. Edges

    Nylon is tough, so it can leave stringy burrs at edges and bores.

    We deburr edges and bores so parts fit and run the way they should.

Grades

Nylon grades

Nylon comes as extruded, cast and filled grades. Name the grade on your drawing, or tell us how the part runs and we’ll suggest one.

Nylon grades
Grade Typically used for
Extruded nylon 6 General machined parts from rod and plate.
Nylon 6/6 Slightly harder, stiffer and more heat resistant than nylon 6.
Cast nylon Large parts and thick sections. Cast stock comes in large sizes with low internal stress.
Oil-filled cast Lower friction in sliding and wear parts.
MoS₂-filled (Nylatron®) Gears, bushings and wear parts that need lower friction and better wear.
Glass-filled Extra stiffness, and less growth with heat.
Heat-stabilized Parts that run warm for long periods.
Food-contact grades Parts that touch food. Compliance comes with the grade’s supplier documentation.
Metal-detectable Food and pharmaceutical lines where stray fragments must be found. Detectable plastics

Buyer questions

Nylon FAQs

Nylatron® is a brand of filled nylon. Its grades are nylon with added lubricants such as MoS₂, for lower friction and better wear. If your drawing specifies a Nylatron grade, we machine the part in that grade. Nylatron® is a registered trademark; CDS is not affiliated with its owner.

Extruded nylon 6 and 6/6 come as rod and plate in smaller sizes. Cast nylon is made in large shapes with low internal stress, so it suits large and thick parts. Both machine well. We machine whichever your drawing names, or suggest one with your quote.

Slightly. Nylon takes on moisture from the air and from water, and grows a little as it does. For wet service or close fits, we allow for it, or suggest a plastic that stays closer to size, such as acetal or UHMW.

Yes. We supply nylon sheet and rod, cut to size when you need it, through our material supply service.

Getting a quote

Start with what you have

A drawing, a sketch or the worn nylon part itself. Our experienced team takes it from there.

When a breakdown can’t wait, ask about our expedited service