# Part name:
Lomo MBB-1 and MIN-8 microscope coarse focus rack

# Original page URL:
https://www.microscopeparts.eu/part/lomo-min-8-mbb-1-and-min-8-microscope-coarse-focus-rack-00839

# Part manufacturer:
Lomo

# Full manufacturer name:
Leningrad Optical Mechanical Association

# Other names of this manufacturer:
- LZOS
- TOMP
- WTOMP
- WOOMP
- GOMZ
- LOOMP
- Progres
- Progress
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:
Rack gear (so-called toothed rack) for coarse focusing (macro focus).

In the Lomo MBB-1 and Lomo MIN-8 microscopes, the microscope arm remains stationary, and focusing is achieved by raising or lowering the microscope stage. This is the opposite of how it works, for example, in the Lomo Biolam model, where the arm moves up and down.

Along this rack gear offered here, the entire assembly of the microscope stage holder and the condenser is moved. This assembly is driven by a gear wheel mounted on a shaft located between the coarse focus knobs.

This is an original brass rack gear, not a plastic 3D print. The set includes two mounting screws (the upper and lower ones differ from each other).

# Examples of use
- as a service item for replacement

# Removed from microscope:
Lomo MIN-8

# Also compatible with the following microscopes:
- Lomo MIN-8
- Lomo MBB-1

# Names, descriptions, terms, and search contexts under which this part is searched.
- Lomo MIN-8 microscope repair parts
- Lomo MBB-1 und Lomo MIN-8 Mikroskop Grobtrieb Zahnstange
- Lomo MBB-1 and Lomo MIN-8 microscope coarse focus rack
- Listwa zębata mikroskou Lomo MBB-1 i Lomo MIN-8
- Serwis
- naprawa
- zębatka
- smar
- wymiana smarów
- czyszczenie
- połamane
- nie działa
- wykrzywione. Wartung
- Lomo MBB-1 und Lomo MIN-8 Mikroskop Reparatur
- Zahnrad
- Zahnstange
- Fett
- Schmierstoffwechsel
- Reinigung
- defekt
- nicht funktionsfähig
- verbogen
- Neufetten. Service
- repair
- rack
- pinion
- grease
- lubricant change
- cleaning
- broken
- not working
- bent
- Lomo buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00839.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00839.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00839-lomo-min-8-mbb-1-and-min-8-microscope-coarse-focus-rack
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00839.media.md
- Representative photo: https://www.microscopeparts.eu/photo/lomo-min-8-mbb-1-and-min-8-microscope-coarse-focus-rack-00839-2
- Other parts from category Service and spare parts: https://www.microscopeparts.eu/service-and-spare-parts
- More Service and spare parts removed from microscope Lomo MIN-8: https://www.microscopeparts.eu/service-and-spare-parts/from/lomo/min-8
- More Service and spare parts compatible with microscope Lomo MIN-8: https://www.microscopeparts.eu/service-and-spare-parts/for/lomo/min-8
- More Service and spare parts removed from microscopes Lomo: https://www.microscopeparts.eu/service-and-spare-parts/from/lomo
- More Service and spare parts compatible with microscopes Lomo: https://www.microscopeparts.eu/service-and-spare-parts/for/lomo

# 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: 2026-06-30