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Surface profile measurement of oil seals using a laser microscope

Oil seal
Oil seal


Automobile oil seals are usually attached to the end face of the rotating part of a unit. The oil seals help to prevent oil leakage or the entry of small foreign objects into the engine. Therefore, the shape and roughness of the oil seal surface are strictly managed so that the attaching part is securely sealed. Because oil seals are generally made of rubber, using contact-type measurement equipment may affect their surface profile and lead to inaccurate data.

The Olympus solution

Noncontact measurement using the LEXT OLS5000 3D laser scanning microscope 

Product features

  • Thanks to the system’s contact-free measurement function, the material of the test object is not damaged, even if it is soft.
  • Surface roughness can be measured to provide more accurate data.
  • Even rounded test objects can be accurately measured.


Measurement of surface scratches, 20x objective lens

Measurement of surface scratches, 20x objective lens

Olympus IMS

Products Used for This Application

The LEXT™ OLS5100 laser scanning microscope combines exceptional accuracy and optical performance with smart tools that make the system easy to use. The tasks of precisely measuring shape and surface roughness at the submicron level are fast and efficient, simplifying your workflow and delivering high-quality data you can trust.

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