Electric toothbrush gear set

Electric toothbrush gear set Applications and Precision Gear Manufacturing
UNITECH-GEAR specializes in precision gear mold design and micro precision injection molding, widely supplying electric toothbrush motor module gears, electric shaver transmission gears, electric oral irrigator motor module gears, massager motor module gears, and fascia gun motor module gears.
The electric toothbrush operates with a micro motor as the power source. The main gear fixed on the motor shaft drives an internal secondary gear, which through a side column on the secondary gear drives the internal swing arm in high-speed reciprocating motion. Since the brush head is fixed to the toothbrush body, this achieves high-frequency vibration for effective cleaning.
While the internal mechanical structure appears simple, achieving high-frequency vibration with low noise is extremely challenging. Gear material selection, swing arm design, and material choices all require professional analysis and testing. UNITECH-GEAR electric toothbrush plastic gear transmission solutions reduce operating noise, lower motor current for extended battery life, and deliver superior user experience.
UNITECH-GEAR Gears — High Precision, Low Noise, Long-Lasting Durability
Mastering Core Manufacturing Technology — Pursuing Excellence

Design-Driven, Analysis-FocusedExperienced Engineers Optimize Tooth Profile Design
- Gear design analysis software optimizes tooth profiles, improving safety factors and service life.
- Close communication with customers to understand product functional requirements including material selection, mechanical strength, dimensional accuracy, surface finish, and service life.
- Rigorous design review process: pre-design structural discussion, designer self-inspection against checklists, and post-design review with manufacturing teams.

Processing-Driven, Precision-FocusedFrom Mold Design to Injection Molding — Precision Manufacturing
- Independent machining department for copper electrode (EDM electrode) design and manufacturing. Post-machining copper electrode surface roughness reaches Ra 0.3, accuracy up to JIS Grade 0 (highest level).
- Mold cavity mirror finishing using Charmilles C-axis EDM, achieving surface roughness of Ra 0.3 and accuracy within 0.001mm.
- Japanese brand high-precision injection molding machines produce gears with dimensional tolerances within 0.03mm and weight deviation typically below 0.7%.

Detail-Driven, Control-Focused100% Visual Inspection — Full Testing Before Shipment
- Advanced inspection equipment: gear meshing testers, CMM (Coordinate Measuring Machines), roundness testers, and electron microscopes ensure product quality.
- Strict implementation of ISO 9001 quality management system ensures all products meet customer requirements.
- All gear products undergo 100% visual inspection before assembly, and all gearboxes are fully tested before shipment.
Need a Custom Gear Solution?
Contact UNITECH-GEAR for professional plastic gear design and manufacturing — from prototype to mass production.



