nylon rod

An application fixes duty—wear, bushing, spacer, low-load roller—not a promised service life. For nylon rod, the application usually locks diameter, length and whether the surface must be as-extruded or ground. Density in g/cc, if used to distinguish grade, comes from the buyer’s drawing or incoming-inspection method, not from a catalogue reprint on this site.

What stays open after the use is described: color, filled versus unfilled, moisture condition, packing and the named ASTM or equivalent method. Those remain buyer decisions until a supplier confirms the quoted line.

Dimensional packet

Diameter, length and machining allowance. Tensile strength and flexural modulus are acceptance questions only if the drawing names them.

Ask	Unit
Diameter	in or mm
Length	in or mm
Density if used	g/cc

Grade discriminator

PA6 versus PA66, glass-filled or oil-filled. Heat deflection temperature (HDT) and melt temperature (Tm) belong on the offer if they are gates—not as decorative ranges.

Ask	Why
PA6 / PA66	Moisture and HDT differ
Filler	Wear versus toughness
Color	Pigment can shift density

Request, not CAD store

This desk does not host STEP files. Describe the revision in the requirements box. After contact, drawings can be sent by the buyer’s own channel.

Send the open axes

Uses that change the purchase line

Wear pads

Locks surface finish and whether oil-filled is even in scope. Life hours are not promised here.

Bushings

Locks ID after machining. Parent nylon rod diameter must still be stated with allowance.

Spacers

Locks length tolerance. Color can wait unless the assembly is inspected by pigment.

Food-adjacent

Locks a named FDA 21 CFR 177 file request. A plant ISO certificate is not that file.

Commodity sheet versus engineering nylon rod

Buyers sometimes substitute PE or PP because the unit price looks lower. That is a different polymer family. Nylon rod is specified when moisture uptake, HDT and tensile strength are actually on the drawing. The table is a purchase check, not a performance guarantee.

Check	Stay on PE / PP sheet	Stay on nylon rod
Duty	Guards, liners, low-load covers	Machined wear, bushings, spacers
Axes named	Thickness and sheet size	Diameter, length, density in g/cc if used
Thermal gate	Often none	HDT or continuous temperature if the drawing has it
Moisture	Usually ignored	Dry versus conditioned dimension must be stated
Evidence	Resin type and color	Grade, filler, named ASTM method

Translate the use into a nylon rod line

We will not invent a density in g/cc or a service-life hour to complete the brief.

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