120x30x15mm PU Rolls Feeding Wheels for Woodworking Four Side Planer Machines

Need a replacement feed wheel for a four-side planer without ordering it from the machine builder? This is the polyurethane feeding wheel in φ120 x φ30 x 15 mm: 120 mm outer diameter, 30 mm bore, 15 mm thickness, yellow PU. It is sold as a woodworking machine spare for four-side planer and moulder feed positions, and those three dimensions are the whole fitment check: measure the old wheel with a caliper, match 120 / 30 / 15, and it goes on the shaft the old one came off.

When a feed wheel wears on a four-side planer, three things arrive in the same shift: boards start slipping at the infeed, the finished surface picks up marks where the PU face has gone flat, and the machine stands idle while somebody chases a replacement. This wheel is the replacement for the positions that take a 120 mm PU roller.

It is a yellow polyurethane feeding wheel measuring φ120 x φ30 x 15 mm — 120 mm outer diameter, 30 mm bore, 15 mm thickness. The face that meets the timber is PU rather than steel, and the wheel is supplied as a spare for four-side planer and moulder feed positions.

Fitment is a measuring job, not a guess. Pull the old wheel and read three numbers off it with a caliper: outside diameter 120 mm, bore 30 mm, thickness 15 mm. When all three match, the wheel seats on the same shaft with no spacer, no machining and no adapter — one wheel, one size, one part number.

That matters because a worn feed wheel does not fail loudly. It slips quietly, the profile drifts by a few tenths of a millimetre, and every board costs a little more sanding afterwards. Keeping one 120 mm wheel on the shelf turns the next worn position into a ten-minute swap instead of a week of waiting.

On a spare part, the numbers are the product.

• 120 mm outside diameter - the diameter the roller position is machined for, so the wheel sits at the same height as the one it replaces.
• 30 mm bore - the bore the shaft runs through; a 30 mm hole will not close down onto a thinner shaft, so measure the old wheel first.
• 15 mm thickness - a narrow contact face that keeps the loaded patch small and the wheel inside the clearance the previous one had.
• Polyurethane face at the contact point - the body that meets the timber is PU, so the 120 mm wheel presses on the board through a polymer face, not a steel rim.
• Yellow, so stock reads at a glance - the colour is on the spec sheet, so the wheel is identifiable in a drawer of mixed parts without a caliper.
• The size is the part number - 120x30x15mm carries the outside diameter, the bore and the thickness in one string, so a re-order needs no drawing.
• Built for four-side planer feed positions - sold as a woodworking machine spare for the planer and moulder family that runs a 120 mm feed wheel.
• Arrives ready to mount - the wheel is moulded complete, so nothing needs facing, boring or trimming before it goes back on the shaft.

A worn feed wheel means either a wait for the machine builder's part, or a wheel bought on the wrong bore. A 120 mm PU wheel with a 30 mm bore and a 15 mm face takes both off the table.

• The size is the part number. 120x30x15mm holds the outer diameter, the bore and the thickness in one string, so the stores counter can order without a drawing.
• Measured fit, not guessed fit. three numbers — 120 mm, 30 mm, 15 mm — decide whether it mounts, and a caliper settles them in under a minute.
• PU where the timber is gripped. the loaded face is polyurethane at a 120 mm diameter, so the contact patch is the same material the position was built around.
• A spare on the shelf. one wheel in stock turns a worn roller into a swap, not a stopped four-side planer and a late delivery date.
• Colour-coded stock control. yellow PU is easy to pick out of a parts drawer without measuring a wheel to know it is the 120 mm one.
• Repeat orders stay identical. because the part number is the size, the second and third wheel match the first one at 120 x 30 x 15 mm.
• Spare-part logic, not assembly logic. you buy the wheel that wears, not a complete feed unit, so a breakdown costs one small part.

Yes, if three measurements match: 120 mm outer diameter, 30 mm bore and 15 mm thickness. Pull the old wheel and check all three with a caliper — if any number differs, this size is the wrong one and the machine needs a different wheel.

Measure the old wheel, do not read it off a manual. Outside diameter should read 120 mm, bore 30 mm, thickness 15 mm, and the same three numbers are printed on this part.

Polyurethane. The spec sheet lists the material as PU and the colour as yellow; if the position on your machine was built around a rubber wheel of the same 120 x 30 x 15 mm size, check the old part before ordering.

It is the hole the shaft passes through, and it sets the fit. A 30 mm bore will not clamp down onto a thinner shaft, so a machine running a 25 mm shaft takes a different wheel.

15 mm. That is the face width that meets the timber, and it is the third number in 120x30x15mm — the one that decides whether the wheel clears the existing fence and pressure setting.

Yes. 120x30x15mm is one size in the range, and other sizes can be quoted on request — send the outer diameter, bore and thickness you need, and the answer comes back against those three numbers.

Four-side planer and moulder woodworking machines, in the feed position. It is a 120 mm PU wheel with a 30 mm bore, so it is not a fit for machines built around a different roller diameter.

One spare per size covers the usual single failure. Count the positions on your machine that take a 120 mm wheel, keep one extra for the loaded position, and the next worn roller is a swap rather than an order.