Sintered Gears
Sintered gears are powder metallurgy components pressed and sintered to near-net shape. The process suits high-volume production of repeatable gear geometries in iron-, copper- and stainless-steel-based powders, for automotive, power tool, office equipment and smart home drive trains.
Yuehong manufactures precision micro gears and transmission gears through powder compaction and sintering. The near-net-shape process produces repeatable tooth geometries suitable for high-volume series production while reducing material waste compared with full machining.
Key specifications
- Material families
- Iron-based powder · Copper-based powder · Stainless-steel powder
- Industries
- Automotive & Transportation · Power Tools · Office Equipment · Smart Home · 3C Digital
- Primary process
- Powder compaction: metal powder is pressed in a shaped die to the required green geometry
- Scope
- Confirmed per project — exact grades, tolerances and scope agreed before production
Product overview
- Because the process starts from a shaped die, the same gear design can be repeated consistently across large batches. Typical parts include motor gears, reduction gears, planetary gear components, camera gear components and printer/Copier transmission gears.
- Product scope, specific dimensions, tooth forms and material grades are confirmed from customer drawings before tooling; the most common powder families are iron-based, copper-based and stainless-steel based.
Applications
- Power tool transmissions (drills, grinders, garden tools)
- Office equipment (printer and copier gears)
- Smart home devices (toilet and curtain-controller gears)
- Automotive and transportation components
- 3C digital (camera and consumer device gears)
Materials
- Iron-based powder
- Copper-based powder
- Stainless-steel powder
Manufacturing process
- Powder compaction: metal powder is pressed in a shaped die to the required green geometry
- Sintering: the green compact is sintered under controlled conditions to bond the particles
- Sizing: a secondary pressing step improves dimensional accuracy where required
- Secondary machining: CNC operations applied selectively for features that cannot be net-shaped
Secondary operations
- Sizing for dimensional accuracy
- CNC machining for critical faces and holes
- Cleaning and deburring
Quality & inspection
- In-process weight and dimensional checks
- Tooth geometry and fit inspection per drawing
- Density and hardness control as specified
- ISO9001 quality management system per company statement (certificate verification required)
Product family is derived from company focus statement (precision micro gears) and legacy application concepts. Specific grades, tolerances and certified capabilities require engineering confirmation.
Customization
- Custom tooling from customer drawings
- Sample confirmation before series production
- Material grade selection with engineering support
Frequently asked questions
Can you manufacture sintered gears from our drawings?
Yes. We support custom tooling development from customer drawings. Confirmed drawings and material requirements are reviewed before tooling is made.
What materials can be used for sintered gears?
Common families are iron-based, copper-based and stainless-steel-based powders. The final grade depends on the application's strength, wear and environment requirements.
Is powder metallurgy suitable for small production runs?
Powder metallurgy is most cost-efficient for high-volume production. Small quantities are possible, but tooling cost must be considered. Confirm quantity before we proceed.
Request a Quote for This Product Family
Send your drawing, specification or sample information and our engineering team will review geometry, material and tooling feasibility for your part.