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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)

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LEXT OLS5100

具有出色精度和光学性能的LEXT™OLS5100激光扫描显微镜配备了让系统更加易于使用的智能工具。其能够快速高效完成亚微米级形貌和表面粗糙度的精确测量任务,既简化了工作流程又能让您获得可信赖的高质量数据。