Overview
A nylon gear set is a group of molded spur gears cut on one tooth form so they run together in a drive. Each gear is molded as one part: a tooth band, a hub with a keyway bore, and spokes or lightening holes between them.
The keyway in the bore takes a shaft with a matching flat, so a nylon gear set turns the shaft rather than slipping on it. The large gear meshes with the medium one and the pinion closes the train, so three gears come off one tool family with a step down in speed.
Key Features & Benefits
- One tooth form across the set: the gears meet along the face as they were laid out
- Keyway bore: the flat is molded with the bore, so the shaft drives without a separate key
- Hub with ribs: carries the tooth band and keeps it in line
- Spokes or lightening holes: takes mass out of the web between hub and rim
- Nylon body: takes a knock in a drive without cracking at the tooth root
Teeth, bore and web all come off the model, so a nylon gear set from one tool runs with the next set in the family.
Customization Options
- Teeth count and tooth form per gear
- Bore: diameter, depth and keyway width
- Hub: height and diameter
- Web: spokes, lightening holes or a solid disc
- Rim and face width
- Material: nylon, glass filled nylon or acetal
- Color: black, white or a matched shade
A nylon gear set can take a different tooth count on one gear, so the train is rebalanced without a new tool for every part. Left and right hand spirals are molded in the same tool where the drive calls for them.
Quality & Delivery
Tooling for a nylon gear set is cut in our own mold shop, and the first article of each gear is gauged against your 3D file, bore and keyway included, before the run is released.
Mold faces are polished to the sheen your 3D file calls for, the gate is trimmed flush, and the tooth band comes off the tool with the flanks clean along the full face. Lead time is quoted with the unit price and held to the date, and each gear in a batch is gauged before packing.
We mold every nylon gear set to your 3D file, so the teeth, the keyway and the web follow the model. Send the 3D file for a quotation with the tool cost and the unit price.
Related Capabilities
A single gear in white sits beside this nylon gear set. Our spur gear is one wheel on its own, and the transmission gear is molded for a gearbox input.
Where the drive needs a plain wheel, the toothed drive gear and the nylon slide block run in the same housing.
Molding runs in house on our mold making floor, with injection molding for the gears. Our automotive plastic parts page groups vehicle work, our capabilities page lists the cells and our works page shows past jobs.
