4-010-02-0087 4010020087 CUP SPRING DIN 2093 B 18.0 GR.1 Homag Accessories

The 4-010-02-0087 cup spring is a DIN 2093 B disc spring for Homag woodworking machines, 18mm in diameter. It sits in the machine's spring stack and holds preload where the original spring has flattened or cracked. Confirm fit by matching the part number 4-010-02-0087 and the 18mm diameter against your machine's parts book. The spring is grade GR.1 to DIN 2093. Shipment is by DHL, FedEx, UPS, or similar.

When a cup spring in a Homag machine loses its load height, the stack no longer holds the pressure it was set for. Tools or clamps can shift, and the operator sees inconsistent clamping or a loose assembly. Replacing the spring with the same DIN 2093 B 18mm spring restores the stack to its original working height.

The 4-010-02-0087 is a cup spring made to DIN 2093 B, 18mm in diameter, grade GR.1. It fits Homag woodworking machines as an accessory. To confirm the fit, check the part number 4-010-02-0087 or 4010020087 in your machine's parts book and measure the old spring across its outside diameter; it should read 18mm.

Before fitting, check the spring seat for burrs and the old spring for cracks or a flattened cone. Mount the spring in the same orientation as the original, because a disc spring only carries load one way. Correct orientation and a clean seat keep the stack height stable through the machine's working cycle.

Springs ship by DHL, FedEx, UPS, or similar courier. No packing or customisation details are specified beyond that. When you enquire, send the part number 4-010-02-0087, the 18mm diameter, and a photo of the old spring and its seat so the fit can be checked against your machine.

What the specification fixes, and what it leaves to the machine:

• Stack preload — The 18mm cup spring restores preload in the spring stack so the assembly holds its set pressure through the working cycle.
• Fit check by part number — Match 4-010-02-0087 or 4010020087 in the parts book before ordering to avoid a wrong-size spring.
• Diameter check at the bench — Measuring the old spring across its outside diameter gives 18mm, the same diameter as this replacement.
• Standard profile — Made to DIN 2093 B, the spring follows a known disc-spring profile, so it seats in the existing pocket.
• Grade GR.1 — Grade GR.1 to DIN 2093 sets the spring's dimensional tolerance band, which keeps stack height consistent when several springs sit together.
• Wear point — The spring is the wear point in the stack; a flattened or cracked spring is the usual cause of lost preload.
• Installation orientation — Fit the spring in the same orientation as the original, since a disc spring carries load in one direction only.
• Seat preparation — Clean burrs from the spring seat before mounting so the 18mm spring sits flat and does not tilt under load.
• Machine fit — The spring is an accessory for Homag woodworking machines and replaces the same part number in the stack.

What changes on the shop floor when the right part goes back in:

• Restores stack height. A flattened spring drops the stack and changes clamping pressure; fitting the 18mm DIN 2093 B spring brings the stack back to its set height.
• One number to order. Using 4-010-02-0087 or 4010020087 as the order reference avoids the guesswork of matching a spring by eye at the bench.
• Known tolerance band. Grade GR.1 to DIN 2093 gives the spring a defined tolerance band, so several springs in one stack share load predictably.
• Simple fit check. An 18mm diameter reading on the old spring plus the part number confirms the replacement before the machine is opened.
• Fewer repeat failures. Checking the seat for burrs and fitting the spring in the correct orientation reduces the chance of the new spring tilting and wearing early.
• Single-part ordering. You can order the cup spring on its own rather than a full assembly, which keeps the repair to the worn item in the stack.
• Courier delivery. Shipment by DHL, FedEx, UPS, or similar means the spring arrives as a tracked parcel, so the machine's downtime is planned around a known delivery.

Check the part number 4-010-02-0087 or 4010020087 in your machine's parts book and measure the old spring; it should read 18mm across.

The cup spring is 18mm in diameter and is made to DIN 2093 B, grade GR.1.

Yes. A disc spring carries load in one direction, so fit it in the same orientation as the original to keep the stack working.

Check the spring seat for burrs and the old spring for cracks or a flattened cone, then clean the seat so the 18mm spring sits flat.

You can order the cup spring as a single part using the number 4-010-02-0087; the enquiry is for the spring itself.

Shipment is by DHL, FedEx, UPS, or similar courier.

Send the part number 4-010-02-0087, the 18mm diameter, and a photo of the old spring and its seat so the fit can be checked.

Yes. The spring is made to DIN 2093 B, grade GR.1, and is 18mm in diameter.