A customer needed a bevel gear machined from PEEK: a gear that transmits motion between two shafts that meet at an angle, made in a self-lubricating, wear-resistant plastic instead of metal. We machined it from solid PEEK, with the angled teeth, a bored and keyed center hole, and a hub at the base. It’s a custom PEEK bevel gear, with teeth cut on an angled (conical) face, used to transmit power and change the direction of drive between two shafts that meet at an angle. The center bore takes the shaft, and the keyway locks the gear to the shaft so it turns with it. The hub at the base gives the bore more length to sit squarely on the shaft.

We turned the body, the hub, and the center bore first to get a round, accurate part, then machined the bevel teeth on the angled face and cut the keyway in the bore. The teeth take the most work.

Part type: Custom PEEK Bevel Gear

Material: PEEK

Machining Process: CNC Turning + CNC Milling

Surface Finish: As-machined, Edges Deburred

PEEK is a high-performance engineering plastic that handles continuous service around 250°C, resists a wide range of chemicals, insulates electrically, and offers low friction and good wear resistance without added lubrication. The customer chose it over a metal gear because it is self-lubricating, runs with low friction and less noise, resists wear and chemicals, is electrically insulating, and is much lighter than metal.

That suits drives where a metal gear would need lubrication, would be noisy, or can’t be used because of corrosion or electrical concerns. Machining the gear from solid stock, rather than molding it, lets us hold the tooth form and the bore accurately on a one-off or low-volume part without the cost of a mold. Where a customer needs more strength or stiffness, we also machine PEEK-GF or PEEK-CF, which raises the load the gear can carry.

We provide custom CNC machining services for low-volume production and rapid prototyping for design verification.  Click Here to Upload Your CAD Files