· Product Overview

· Core Specifications

Material Performance

Manufacturing Standards

• Certification: ISO 9001 Certified
• Core Processes: CNC Precision Turning → Gear Hobbing/Milling → Spline Forming → Deburring → Polishing → Dimensional Inspection
• Precision Parameters:
  • Gear Tolerance: ISO 8-9 grade (standard), customizable to ISO 6-7 for high-precision meshing
  • Dimensional Tolerance: ±0.008mm for critical features (tooth root, shaft diameter)
  • Surface Finish: Natural brass polished finish (Ra ≤ 1.6μm), burr-free, no sharp edges
  • Meshing Performance: Zero backlash (customizable), low noise (≤45dB) during operation

· Application Scenarios

• Hobby & Model Making: Core transmission parts for RC cars, aircraft models, ship models, and precision mechanical toys.
• Precision Instruments: Gear trains and drive shafts for measuring equipment, metering devices, and optical instrument adjustment systems.
• Office Automation: Transmission components for printers, copiers, scanners, and shredder internal drive mechanisms.
• Marine Equipment: Corrosion-resistant transmission parts for small boat winches, marine gauges, and underwater micro-motors.
• Medical Devices: Low-noise gear shafts for diagnostic instruments, portable medical equipment, and laboratory sample handling systems.
• Electrical Equipment: Conductive transmission components for switches, relays, and small electric motor drive assemblies.

· Production Process Introduction

1. Raw Material Preparation: Select certified brass bars/sheets, cut to fixed lengths according to component design dimensions via precision sawing.
2. CNC Rough Machining: Use CNC lathes/mills to remove excess material, forming the basic shape of shafts, gear blanks, and transmission bars.
3. Precision Feature Forming:
   • Gears: Process tooth profiles via high-precision gear hobbing or milling for uniform tooth spacing and accurate meshing.
   • Shafts: Form splines, steps, and mounting holes to ensure perfect fit with mating components.
4. Deburring & Polishing: Manually remove burrs from tooth roots, shaft ends, and splines; polish the surface to enhance wear resistance and appearance.
5. Quality Inspection:
   • Use gear measuring instruments to verify tooth profile, pitch, and meshing accuracy.
   • Conduct CMM scanning to confirm dimensional tolerances and concentricity.
6. Cleaning & Sorting: Ultrasonically clean components to remove machining debris, then sort by type and specification for packaging.

· Packaging and Shipping Methods

Packaging

• Individual Component: Each gear, shaft, and bar is wrapped in anti-tarnish paper and sealed in PE bags to prevent oxidation and scratch damage.
• Kit Packaging: Components are placed in custom foam-lined plastic trays with labeled compartments (by part type/size) for easy identification.
• Bulk/Wholesale Packaging: Foam-lined export cartons with moisture-proof desiccants to protect brass from tarnishing during long-distance transit.

Shipping Methods

• Express Delivery (DHL/FedEx/UPS): 3–5 business days for sample kits and small-batch orders (ideal for prototype testing).
• Air Freight: 7–10 business days for medium-batch production runs (cost-effective for regional shipments).
• Sea Freight: 20–28 business days for large-volume wholesale orders (suitable for long-term supply contracts).
• All shipments include real-time tracking numbers and anti-tarnish packaging guarantees.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 200 pieces per single component type; 50 kits for standard mixed-component sets; sample kits (1 set) are available for testing (sample fee applicable).
• Lead Time: Sample kits: 3–7 working days; Standard production: 8–15 working days; Custom high-precision components: 12–22 working days. Expedited production (5–8 days) is available for urgent orders (additional fees apply).
• Customization Capability: Full customization is supported for all components:
  • Gear parameters: Module (0.3–2.0), number of teeth, tooth profile (spur/helical).
  • Shaft specifications: Length, diameter, spline type, step design, and mounting hole positions.
  • Material & Finish: Custom brass grades, plating (nickel/chrome) for anti-tarnish, or lubrication treatment for enhanced performance.
  • We accept 2D drawings (PDF/DXF) and 3D models (STEP/IGS) for custom design production.