Microscope Focusing Rack and Pinion
Coarse and fine focusing rack and pinion mechanism for compound microscope stands. Provides 0.002mm precision with counterbalanced design. HTS 9011.90.00.00 for focusing accessories.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If precision measuring mechanisms
Chapter 90 note 7 prioritizes 9031 for optical measuring instruments over mechanical parts
If general gears and gearing
Rack and pinion assemblies principally for machines classify in Chapter 84
If universal adjustment mechanisms
Non-dedicated focusing parts under note 2(c)
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Import Tips & Compliance
• Document micrometer precision and stage travel range specific to 9011 optical requirements
• Avoid 9031 classification by proving mechanical vs measuring function dominance
• Lubrication specifications must match cleanroom standards for lab use
Related Products under HTS 9011.90.00.00
Microscope Stage Micrometer Slide
Precision glass slide with etched micrometer scale for calibrating compound optical microscopes. Used to measure field of view and ensure accurate measurements in scientific analysis. Classified under HTS 9011.90.00.00 as a calibration accessory dedicated to compound microscopes.
Mechanical Stage for Compound Microscope
Precision X-Y mechanical stage with vernier scales for compound microscopes, enabling smooth specimen positioning. Typically 140mm x 140mm size for standard lab microscopes. Falls under HTS 9011.90.00.00 as dedicated positioning accessory.
Trinocular Phototube Adapter
Trinocular phototube for attaching DSLR cameras to compound microscopes, with 23.2mm eyepiece port. Enables photomicrography by diverting light to digital sensors. Covered by HTS 9011.90.00.00 for photomicrography accessories.
Immersion Oil Kit for Microscopy
Cedarwood-based immersion oil (nD=1.515) in dropper bottles for 100x oil immersion objectives on compound microscopes. Essential for achieving maximum resolution in biological applications. Classifies under HTS 9011.90.00.00 as dedicated accessory.
Microscope Slide Clips Set of 2
Spring-loaded metal slide clips holding standard 25x75mm slides securely on compound microscope stages. Set of two for X-Y mechanical stages. HTS 9011.90.00.00 for specimen holding accessories.
Compound Microscope Nosepiece Turret 5-Position
Quintuple ball-bearing nosepiece turret for compound microscopes, holding five objectives with smooth indexing. Precision machined for parfocal alignment. Dedicated part under HTS 9011.90.00.00.