Various Tooth Profiles: Common types include double-sided arc teeth (HTD) and double-sided trapezoidal teeth (T-type).
Applications
Automated Production Lines: Synchronizes multiple stations, such as assembly, sorting, and conveying equipment.
Printing Machinery: Double-sided synchronous drive for rollers, ensuring registration accuracy.
Textile Machinery: Synchronous control for multi-axis winding and coiling equipment.
Advantages and Case Studies
Replaces complex layouts with multiple single-sided belts and pulleys, simplifying the structure.
Achieves multi-axis synchronization through S-shaped or crossed routing (as shown in diagrams).
In printing machines, double-sided timing belt systems eliminate lubrication contamination issues of traditional chain drives.
Selection Considerations
Tooth Profile Matching: Choose arc teeth (HTD) or trapezoidal teeth (T-type) based on load requirements.
Material Selection:
Standard environments: Neoprene (CR),
High-temperature/oil-resistant: Hydrogenated Nitrile Rubber (HNBR)
Clean environments: Polyurethane (PU).
Pulley Design: Must use dedicated double-sided pulleys (e.g., with double-sided flanges).
The core advantage of double-sided timing belts lies in their dual-engagement capability, optimizing transmission layouts in scenarios requiring high space efficiency, precision, or environmental adaptability.
Application Scenarios for Space-Constrained Environments
Medical Equipment: Internal transmission in precision instruments like CT scanners and X-ray machines.
Robotic Joints: Compact joint drives in collaborative robots or SCARA robots.
Semiconductor Equipment: High-precision positioning for wafer transfer robotic arms.
Dual-Sided Engagement: Enables bidirectional power transmission in confined spaces.
Example: CT scanner rotating gantries use dual-sided toothed belts to reduce space and noise.
Scenarios Requiring Reverse Synchronous Drive
Packaging Machinery: Synchronous opening/closing of molds or clamps (e.g., dual-action lids in filling machines).
Automotive Engines: Auxiliary drives in timing systems (e.g., some hybrid vehicle models).
Lifting Mechanisms: Dual-sided toothed belts with pulleys for symmetrical lift platform drives.
Advantages: Reverse pulley arrangement eliminates the need for additional reversing mechanisms.
maintains constant transmission ratio, avoiding backlash errors from gear reversal.
High-Precision Positioning and High-Speed Transmission
CNC Machine Tools: Synchronous control of spindle and feed axes.
3D Printers: High-precision synchronous lifting for multi-nozzle or dual Z-axis systems.
Optical Equipment: Bidirectional adjustment of focusing lenses in laser cutting machines.
Benefits: Toothed engagement ensures no slippage, with positioning accuracy within ±0.1mm.
minimal vibration at high speeds (linear velocity up to 20m/s).
