CD player gear
pt_106
Specifications
- Product Category: Precision Transmission & Optoelectronic Sensing Components
- Module Range: M0.2 to M1.5 (Micro to standard module tooling)
- Tooth Profiles: Spur Gears, Helical Gears, Compound Cluster Gears
- Integrated Features: Integrally molded peripheral optical encoder slits / photo-interrupter shutter slots
- Standard Materials: Opaque wear-resistant POM (Black / Custom Color Acetal), High-stiffness Opaque Nylon (PA66 / PA12)
- Primary Functions: Drives tray loading and laser pickup traversing mechanisms while providing pulse-count position/speed feedback via peripheral optical slits and photo-interrupters
- Applications: PC Slim/Desktop Optical Disc Drives (DVD/BD-ROM/RW), Automotive In-Dash ODD Units, Video Game Console Drives, Precision Optical Pickups
Manufacturing Processes & Capabilities
- Integrated Micro-Gear & Optical Slit Tooling: Accommodates M0.2 to M1.5 modules utilizing micro-EDM tooling; integrally molds precision gear teeth and uniform micro-slit arrays with crisp, burr-free aperture edges to guarantee sharp optical signal interruption.
- Tight Concentricity & Runout Control: Balanced gating and mold flow control prevent differential cooling shrinkage, maintaining strict concentricity and axial runout across the shaft bore, pitch diameter, and peripheral encoder ring.
Features & Advantages
- Dual Transmission & Sensing Integration: Combines drive gearing and optical encoding into a single molded component, eliminating secondary encoder wheel assembly while reducing parts count and mechanism footprint.
- Precise Speed & Position Feedback: High-uniformity shutter slits interface seamlessly with optical sensors to provide reliable pulse signals for smooth tray movement, precise end-stop detection, and accurate sled positioning.
- High Opacity & Optical Noise Shielding: Molded with high-opacity, light-absorbing engineering resins to completely block stray laser light and ambient reflections, preventing optical false triggers.
- Self-Lubricating, Wear-Resistant & Quiet Operation: Polymer formulations provide natural self-lubrication and vibration damping, ensuring whisper-quiet tray ejection and long-term wear resistance in dry operating environments.