This worm gear set for optical instruments has a module of 0.63. The worm wheel and worm shaft are made from high-strength 40Cr alloy steel, heat-treated to 20–24 HRC for optimal wear resistance and dimensional stability. The worm gear achieves DIN 8 accuracy, while the worm meets DIN 6-7 accuracy. A black oxide surface finish provides corrosion resistance and reduces light reflection, which is critical for optical applications. Worm gears are ideal for focusing mechanisms, angle measuring stations, and fine-tuning drives that require reliability and precision.
Worm Gear For Optical Instruments
Specification
Module
0.63
Application
Optical instruments
Material
40Cr
Heat Treatment
QT 20-24HRC
Accuracy
DIN8+DIN7
Worm Gear Applied in Optical Instruments
In optical instruments, the requirements for components are extremely high. Minimal mechanical backlash is essential, and the instruments must maintain repeatable positioning for extended periods. Where are these applications specifically located? Here are a few common examples:
Focusing mechanisms in microscopes, telescopes, and cinema lenses. Because of their small backlash, the focus won’t shift after repeated refocusing.
Rotating stages, such as those housing waveplates, polarizers, or filter wheels. Smooth rotation and step-by-step movement are crucial, eliminating “stick-slip” phenomena.
Angle measuring stages are used for adjusting laser beam paths or collimating lenses.
Adjustment mechanisms in spectrometers, profilometers, and interferometers. The precision of the gears directly determines the accuracy of the measurements.
Whether it’s a hand-tightened fine-tuning knob or an electrically powered autofocus module, worm gears deliver the mechanical precision required by modern optical instruments.
Production process
9-Step Production Process
Worm Gear Casting
Worm Shaft Baiting
Turning or Machining
Worm Gear Hobbing
Worm Shaft Milling
Worm Shaft Grinding
OD Grinding
Worm Gear Marking
Worm Shaft Marking
Worm Gear Casting
Worm gear casting uses molten metal poured into precision molds to form worm gears near-net shape, ideal for complex geometries and high-volume production.
Worm Shaft Baiting
Baiting cuts raw steel bars to precise lengths, preparing consistent blanks for subsequent forging or machining operations.
Turning or Machining
Turning or Machining includes rough and fine turning on a lathe, removing bulk material first and achieving final dimensions, tight tolerances and excellent surface finish for gears.
Worm Gear Hobbing
Gear Hobbing is a gear cutting process that used a worm-like cutting tool called a hob cutter meshes with a gear blank in a continuous, synchronized motion (like a worm gear pair).
Worm Shaft Milling
In worm shaft milling, a threaded rotating cutter progressively generates the worm profile, ensuring precise thread geometry and surface finish.
Worm Shaft Grinding
Worm shaft grinding uses a rotating grinding wheel to achieve precise thread geometry and superior surface finish.
OD Grinding
OD Grinding is also called External Cylindrical Grinding, which is in order to finish the external cylindrical surface of a gear to precise diameter, roundness, and surface finish.
Worm Gear Marking
Precision laser marking permanently engraves traceability data (part numbers, date codes, logos) onto gears, ensuring reliable identification and quality tracking throughout the product lifecycle.
Worm Shaft Marking
Precision laser marking permanently engraves traceability data (part numbers, date codes, logos) onto gears, ensuring reliable identification and quality tracking throughout the product lifecycle.
Inspection
Strict Quality Inspection
Dimension Inspection
Material Inspection
Runout Testing
Heat Treatment Testing
Worm Shaft Accuracy Inspection
Worm Wheel Accuracy Inspection
Meshing Testing
Dimension Inspection
Material Inspection
Runout Testing
Heat Treatment Testing
Worm Shaft Accuracy Inspection
Worm Wheel Accuracy Inspection
Meshing Testing
Download
Download To Learn More
Meshing Testing Report
09/03/2026
English
297KB
Worm Gear Dimension Report
09/03/2026
English
2MB
Worm Gear Material Report
09/03/2026
English
783KB
Worm Gear Accuracy Report
09/03/2026
English
1MB
Worm Gear Bubble Drawing
17/03/2026
English
319KB
Worm Shaft Dimension Report
09/03/2026
English
2MB
Worm Shaft Material Report
17/03/2026
English
96KB
Worm Shaft Accuracy report
09/03/2026
English
2MB
Worm Shaft Heat Treatment Report
17/03/2026
English
503KB
Worm Shaft Bubble Drawing
09/03/2026
English
635KB
Packages
Professional Packaging Safe Arrival
Customized cost-effective packages for products protection. We select multi-model solutions, combining air, sea, or land freight for the optimal balance of cost, speed, and reliability.
Inner Package
Out Package
Carton
Wooden Package
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