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Evaluating the Roughness of Raceway Grooves in the Inner and Outer Rings of a Ball Bearing


Ball bearing
Ball bearing

Application

Bearing balls roll at high speed through the raceway formed by grooves in the inner and outer rings of a ball bearing assembly. In quality control, it is important to accurately evaluate the roughness of both the balls and the grooves.
If a conventional microscope is used to evaluate roughness, the working distance of the objective lenses may be too short to allow clear focusing on the bottom of the grooves, which can prevent accurate measurement.

Solution

The LEXT OLS5000 laser scanning microscope enables clearly focused, 3D measurement of roughness on raceway grooves over long working distances.

LEXT OLS5000 product features

The LEXT OLS5000 microscope is equipped with dedicated long working distance objective lenses suitable for roughness measurement on grooves up to 6.5 mm deep.

Images

Bearing inner ring

Bearing inner ring


Bearing outer ring (side view)

Bearing outer ring (side view)


Bearing outer ring (cross-sectional view)

Bearing outer ring (cross-sectional view)


An example of roughness measurement on the groove of an inner ring  (long working distance 100X objective lens; 4x optical zoom)

An example of roughness measurement on the groove of an inner ring
(long working distance 100X objective lens; 4x optical zoom)

Olympus IMS

ProductsUsedApplications


LEXT OLS5000NEW

With the Olympus LEXT OLS5000 laser scanning confocal microscope, noncontact, nondestructive 3D observations and measurements are easy to produce. Simply by pushing the Start button, users can measure fine shapes at the submicron level. Ease of use is combined with leading-edge features to deliver an acquisition speed four times faster than our previous model. For customers with larger samples, LEXT long working distance objectives and an extended frame option allow the system to accommodate samples as large as 210 mm.
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