# Part name:
Zeiss Axiolab microscope compound gear for coarse and fine focus

# Original page URL:
https://www.microscopeparts.eu/part/zeiss-axiolab-microscope-compound-gear-for-coarse-and-fine-focus-99938

# Part manufacturer:
Zeiss

# Full manufacturer name:
Carl Zeiss West Germany

# Other names of this manufacturer:
- Carl Zeiss West
- Carl Zeiss West Germany
- Opton
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Service and spare parts

# Description and specifications:
Steel gear wheel (pinion gear) for the coarse and fine focus of Carl Zeiss Axiolab microscopes.

This is a gear wheel joined to a coaxial pinion. The large gear wheel transfers the movement from the shaft that the user turns with the knobs - and on the smaller pinion runs the brass toothed rack (https://www.microscopeparts.eu/part/99943), raising and lowering the stage with the specimen.

In the Zeiss Axiolab microscope these wheels are mounted on the housing casting on a relatively thin axle (it is included in the set offered here), and even the slightest bend of that axle makes the gear turn unevenly.

This gear wheel was removed from a Zeiss Axiolab re microscope, P/N 45 09 05 (also written as 450905). However, it also fits the following variants:
- Zeiss Axiolab drb KT, which carries the same number 45 09 05 (450905)
- Zeiss Axiolab E re, 45 09 07 (450907)
- Zeiss Axiolab A, 45 09 09 (450909)
- Zeiss Axiolab Pol, 45 09 10 (450910)

I was not able to confirm this, but in my opinion it is very likely that the focusing gear wheel from the Zeiss Axiolab microscope also fits the following microscopes:
- Zeiss Standard 20
- Zeiss Standard 25 ICS
- Zeiss Axiostar
- Zeiss Axioskop 20
It may also fit the inverted microscope Zeiss Axiovert 25.

# Examples of use
- as a service part, if you need to replace a damaged gear wheel

# Removed from microscope:
Zeiss Axiolab

# Also compatible with the following microscopes:
Zeiss Axiolab

# Names, descriptions, terms, and search contexts under which this part is searched.
- Zeiss Axiolab microscope repair parts
- Zeiss Axiolab Zahnrad Grobtrieb Ersatzteil
- Zeiss Axiolab focus gear wheel replacement
- Zeiss Axiolab 450905 Zahnrad Feintrieb
- Zeiss Axiolab re Zahnrad mit Ritzel
- Zeiss Axiolab E 450907 focus pinion gear
- Zeiss Axiolab Pol 450910 Zahnrad
- Zeiss Axiolab drb KT rack and pinion
- Zahnrad Zaehne abgebrochen Zeiss Axiolab
- Fokus ruckelt Zahnrad verbogene Achse Mikroskop
- broken focus gear Zeiss Axiolab microscope
- microscope focus gear slipping jumping repair
- Zahnrad und Zahnstange Mikroskop Scharfstellung
- Zeiss Standard 20 Zahnrad Scharfstellung
- Zeiss Standard 25 ICS focus gear wheel
- Zeiss Axiostar Zahnrad Grobtrieb
- Zeiss Axioskop 20 focusing gear pinion
- Zeiss Axiovert 25 Zahnrad Mikroskop
- Zeiss Axiolab Mikroskop restaurieren Zahnrad Trieb
- restoring an antique Zeiss microscope focus gear
- ozubené kolo mikroskopu Zeiss Axiolab
- pinon de enfoque microscopio Zeiss Axiolab
- repuesto engranaje enfoque microscopio Zeiss
- ingranaggio di messa a fuoco microscopio Zeiss Axiolab
- ricambio pignone microscopio Zeiss Axiolab
- koło zębate śruby mikrometrycznej mikroskop Zeiss Axiolab
- Zeiss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99938.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99938.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99938-zeiss-axiolab-microscope-compound-gear-for-coarse-and-fine-focus
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99938.media.md
- Representative photo: https://www.microscopeparts.eu/photo/zeiss-axiolab-microscope-compound-gear-for-coarse-and-fine-focus-99938-2
- Other parts from category Service and spare parts: https://www.microscopeparts.eu/service-and-spare-parts
- More Service and spare parts removed from microscope Zeiss Axiolab: https://www.microscopeparts.eu/service-and-spare-parts/from/zeiss/axiolab
- More Service and spare parts compatible with microscope Zeiss Axiolab: https://www.microscopeparts.eu/service-and-spare-parts/for/zeiss/axiolab
- More Service and spare parts removed from microscopes Zeiss: https://www.microscopeparts.eu/service-and-spare-parts/from/zeiss
- More Service and spare parts compatible with microscopes Zeiss: https://www.microscopeparts.eu/service-and-spare-parts/for/zeiss

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-10-26