More about part: Olympus CX31 / CX41 microscope focus block with toothed rack and roller guides incl 16 rollers (ID: 92014)

This is the complete module responsible for raising and lowering the stage and condenser assembly. It consists of the following parts:

• load-bearing metal casting to which the remaining parts are screwed (manufacturer's name: frame)
• brass rack fastened with two Allen screws (manufacturer's name: rack). This is the main rack that lifts the whole mechanism. Because it carries the entire load, this is a part that often gets damaged while the microscope is being transported
• outer guide with five screws used to adjust the lateral pressure and the running resistance (manufacturer's name: outer guide). It is the loosening of this part that is often responsible for the microscope stage sinking down on its own
• tracks on which the rollers run (manufacturer's name: wire guide)
• two brass plates with rectangular windows that keep the rollers evenly spaced (manufacturer's name: casing). These often get bent, which makes the vertical movement of the stage lose its smoothness
• set of 16 steel bearing rollers, 8 per side (manufacturer's name: roller). These often fall out and get lost after a mechanical impact or during servicing of the mechanism