The model 4152D installation is intended to be used for measuring the mean diameter of openings in bearing inner races measured in three cross-sections along the axis of the opening, and also for grading the bearings into size groups according to their mean diameter for the consecutive selective assembly.
The installation consists of an electronic unit and any number of measuring stages for different diameters of bearing races. The
stages are connected in turns to the electronic unit.
The measuring stages do not need readjustment. When the bearing ring is turned on the measuring stage the opening’s diameter is automatically determined as the mean of half-sums of the diameter’s maximum and minimum values in each cross-section.
The setting up of the measuring stage is carried out with the aid of
reference gauges (included in the complete set) and ends up by a single push of the button on the electronic unit’s front panel. The measured results are shown in alphanumeric form on the screen of the electronic unit. The electronic unit’s software enables the operator:
• to receive instructions from the screen of the electronic unit that
help him to quickly master the instrument.
• to receive diagnostic messages on the screen that facilitate quick detection and elimination of malfunctions in the instrument.
Employing this instrument in combination with the Indicating snap gauge model 4150M-D provides the selective assembly of the ring with the axle in a predetermined interference fit.