Precision Plastic Double Gears

Specifications

• Product Category: Precision Transmission Components
• Tooth Profiles: Spur / Helical / Compound Spur-Helical configurations
• Module Range: M0.2 to M1.5 (Micro to standard module tooling)
• Standard Materials: Wear-resistant POM (Polyoxymethylene / Acetal), High-toughness Engineering Nylon (PA66 / PA46 / Glass-filled PA)
• Structural Type: Integrally molded double/compound gear (Cluster / Step Gear)
• Primary Functions: Multi-stage speed reduction, spatial optimization, high ratio step-down, torque multiplication
• Custom Capabilities: Custom mold tooling; modules, tooth counts, helix angles, step thicknesses, and shaft bores (round, D-cut, stepped) tailored to drawings
• Applications: Office Automation (Printers/Scanners), Micro Reduction Gearboxes, Robotic Actuators, Smart Home Appliances, Electric Toys, Medical Automation

Manufacturing Processes & Capabilities

• Integrally Molded Stepped-Gear Tooling: Covers M0.2 to M1.5 modules, integrally molding large and small gear tiers into a single component; micro-tolerance tooling and mold flow optimization eliminate differential shrinkage across uneven wall thicknesses to preserve tooth geometry.
• Strict Concentricity & Runout Control: Maintains strict concentricity and axial runout tolerances among the primary gear, secondary gear, and center bore, ensuring precise shaft center-distance alignment and non-binding rotation.

Features & Advantages

• Compact Footprint & Assembly Streamlining: Replaces multi-part assemblies (separate gears, spacers, and shafts) with a single molded component, significantly shortening axial gearbox dimensions while reducing parts count and labor costs.
• High Mechanical Efficiency & Low Backlash: Precise tooth engagement and smooth surface finish ensure efficient torque transfer between stages while minimizing cumulative backlash in multi-stage gear trains.
• Self-Lubricating, Wear-Resistant & Quiet Drive: Engineered POM and Nylon resins deliver low friction coefficients and vibration damping, eliminating meshing whine and extending maintenance-free service life.

About Plastic Gears

A gear is a toothed wheel designed to transmit force to another gear or toothed component. The teeth of a gear can be shaped to minimize wear, vibration and noise, and to maximize the efficiency of power transmission.

Gears of differing size are often used in pairs for a mechanical advantage, allowing the torque of the driving gear to produce a larger torque in the driven gear at lower speed, or a smaller torque at higher speed.

The Advantages of Plastic Gears:

1. Plastic gears are easily molded into various shapes, so they have a wider range of configurations.
2. Plastic gears are less expensive and lighter in weight.
3. Plastic gears are chemical- and corrosion-resistant.
4. Plastic gears provide quieter and smoother operation and offer more efficient drive geometry.
5. Plastic gears are inherently self-lubricating.

While plastic gears offer many advantages over metal gears, their effective use requires proper design and engineering to account for possible dimensional and property variations over the expected range of operating conditions.