Custom Spur Gears
Straight-tooth gears engineered around your drawing, load case, and assembly requirements.
Engineering review
SINOF reviews tooth geometry, material, heat treatment, bore features, and inspection needs before confirming a manufacturing route.
- External and internal tooth concepts reviewed
- Hub, bore, keyway, spline, and set-screw options
- Prototype and production requirements evaluated separately
- Drawing-based tolerance and documentation review
Materials and precision
Accuracy grade and measurable acceptance criteria are confirmed after drawing review.
- Carbon and alloy steels, subject to drawing review
- Stainless steel grades, subject to application review
- Brass, bronze, and engineering plastics where suitable
Customization inputs
- Module or diametral pitch
- Tooth count and pressure angle
- Bore, hub, keyway, and spline geometry
- Heat treatment and surface-finish requirements
Inspection
- Dimensional verification against the released drawing
- Tooth profile, lead, pitch, and runout checks when specified
- Material and hardness documentation when agreed in the quotation
Frequently asked questions
What information is needed to quote a spur gear?
A drawing or 3D model is preferred. Please also share quantity, material preference, heat treatment, accuracy requirement, and the gear application.
Can SINOF review an existing gear sample?
A sample can support the engineering review, but a controlled drawing and agreed inspection criteria are still recommended before production.