Four Sides Moulder Planer Polyurethane Feeding Roller 140x35x50mm PU Feeding Wheel

Feed wheel gone flat on your four-sided moulder planer? This is the direct replacement: a 140X35X50 polyurethane feeding wheel on an aluminum core, 140 mm outside diameter, 35 mm bore, 50 mm width, 15 mm thickness, 90 Shore hardness, single keyhole version. Two materials, one part: the aluminum hub carries the shaft clamping load, the polyurethane ring grips the board. One wheel, one size, no assembly to buy. Match four values against the wheel you pulled off and the swap happens on the same shift.

A four-sided moulder usually reports a worn feed wheel quietly. Boards creep a few millimetres at the infeed, the pitch shortens under load, and the flat spot on the polyurethane face starts printing a mark through the planed surface. Plenty of shops run it until the mark shows, because the alternative is a purchase order to the machine builder and an idle moulder in the meantime.

This is the part that ends the wait: a polyurethane feeding wheel on an aluminum core, made for the feed position of a four-sided moulder planer. The size code is 140X35X50 — 140 mm outside diameter, 35 mm bore, 50 mm wheel width. The spec sheet puts the polyurethane layer at 15 mm thickness and 90 Shore hardness, and the wheel as the single keyhole version.

The build is two materials doing two different jobs. The aluminum core sits inside the bore and takes the clamping load from the 35 mm shaft, so the hub holds its shape under feed pressure. The polyurethane ring is the only surface touching the timber, and that is where grip, slippage and surface marking are decided.

It is supplied as one spare wheel in one size, ordered as a 140X35X50 PU wheel, so a worn face becomes a swap at the feed position instead of a stopped machine.

Every line below is a value off the spec sheet, not a claim about how it performs.

• 140 mm outside diameter — the roller diameter this feed position is built around, so the wheel sits at the same working height as the one it replaces.
• 35 mm bore — the shaft size it mounts on; a 35 mm bore will not clamp down onto a 30 mm shaft, so measure the old wheel first.
• 50 mm wheel width — the third number in the 140X35X50 code, and the value that decides clearance against the fence.
• 15 mm thickness — the thickness figure the sheet lists beside diameter and bore, quoted here exactly as written.
• 90 Shore polyurethane — the rim that meets the board is PU at 90 Shore, the hardness value carried on the same sheet.
• Aluminum core — a metal body inside the wheel takes the clamping load from the shaft, so the bore is supported across its full width.
• Single keyhole version — one keyhole locates the wheel on the shaft; a wheel drilled to a multi-hole pattern is a different part, whatever the diameter reads.
• Two materials, one spare — polyurethane outer, aluminum inner: grip comes from the polymer, structure from the metal.
• Size code as part number — 140X35X50 carries diameter, bore and width in one string, so a repeat order needs no drawing.

When a feed wheel wears, most shops choose between two bad options: wait on the machine builder's spare, or order against a bore size read off a guess. This part takes both off the table.

• Fit is measured, not promised. three numbers — 140 mm, 35 mm, 50 mm — decide whether the wheel mounts, and a caliper settles them in a minute.
• The wear surface is the spare. you buy the polyurethane ring on its aluminum core, not a complete feed assembly, so a worn face costs one part, not a unit.
• The keyhole is stated before you order. the sheet names the single keyhole version, so the pattern is checked against the old wheel, not discovered at fitting.
• Surface marking has one suspect. polyurethane at 90 Shore is the only material between metal and timber, so a mark on the board points at one part.
• Stores carry one line, not five. with the size acting as the part number, a reorder is 140X35X50 and comes back as the same wheel.
• Downtime is a swap, not a shutdown. one wheel on the shelf turns a slipping infeed into a job measured in minutes, before a flat spot prints.
• Quoted against your machine. send diameter, bore, width and keyhole type, and the answer comes back on those four values instead of a catalogue guess.

Only if four values match: 140 mm outside diameter, 35 mm bore, 50 mm width and the single keyhole pattern. It is the feed position spare for four-sided moulder and planer machines; if any of those four readings differs on the wheel you pulled off, this size is the wrong part for that head.

Use a caliper on the old wheel, not the machine manual. Outside diameter should read 140 mm, bore 35 mm and width 50 mm — the same three numbers this wheel carries in its size code — then compare the keyhole against the single keyhole version listed here.

Polyurethane on an aluminum core. The sheet lists the material as polyurethane plus aluminum, and the PU sits on the outside as the face that grips the timber, with the aluminum core inside the bore taking the clamping load.

One keyhole locates the wheel on the shaft, not a multi-hole pattern. Check that against the wheel you removed: a feed position built for a different key pattern needs a different wheel, however well the diameter matches.

90 Shore, quoted exactly as the spec sheet states it. The sheet does not name the A or D scale, so ask for that reading only if your machine builder publishes one for this position.

50 mm is the width, the third figure in the 140X35X50 size code; the sheet lists thickness separately at 15 mm. If you need to know which face that 15 mm measures before the order goes out, confirm it with us against your old wheel.

Price comes by quote, so nothing is committed online. Send the size code 140X35X50 and the quantity you need, and the offer is returned against that written size instead of a generic list price.

Yes, other sizes are quoted on the same basis. Send outside diameter, bore, width and keyhole type for the wheel you need, and the answer comes back against those four values.