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Dimensional control for mechanical parts: boring0 pages
Application example SOLEX - n°4a
Dimensional control for mechanical parts: boring
Objective
Measure bore diameters and shape defects
(out-of-roundness, conical shape) instantly and
reliably using an easy-to-use tool that can be
operated by non-dedicated operators.
Outer
ring
Inner
ring
Groove 1
Cage
Ball
(rolling element)
Groove 2
Main components
Solex pneumatic micro-measurers
Specific gauge
Depending on the case, a system with or without
assembly
Figure 1 – Ball bearing
Advantages
Solex pneumatic micro-measurers, which use a
gauge specific to the part being measured, are
either used to present the part on an assembly
with a fixed gauge, or to bring the gauge onto the
part.
The advantages of the pneumatic method are
determining when there are low tolerances on the
boring to be checked (less than 100 µm).
Figure 2 – Gears in a gearbox
on their shaft
(source: Wikipedia)
Application
There are a large number of applications, since all types of borings to be checked can be
envisaged, examples are:
Inner diameters of bearing rings (part d on figure 1), that are used to fix to a fixed or
rotating shaft
Gearbox gears (figure 2), that must also respect precise tolerances
The contactless measurement used uses a constant pressure air flow through the holes in
the gauge. When there are size variations in the checked boring, the air flow varies, causing
pressure changes that are detected by the flow meter.
A gauge specific to this application is shown in figure 3.
www.solex-metrology.com
solex@kep-technologies.com
