Application Notes
Surface profile measurement of oil seals using a laser microscope
Oil seal
Application
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.
Image
Measurement of surface scratches, 20x objective lens
Related products
LEXT OLS5500
Hybrid 3D Optical Profilometer
- Traceable surface measurements from the nanometer to micrometer scale
- Laser scanning microscopy (LSM), white light interferometry (WLI), and focus variation microscopy (FVM) in one award-winning platform
- First 3D optical profilometer to offer guaranteed accuracy and repeatability* for both LSM and WLI measurements
- WLI mode delivers up to 40x faster measurement throughput than conventional LSM
- Exceptional precision across surfaces with in-house engineered optics
- Intuitive interface and smart automation streamline operation for users of all levels
- AI-enhanced and high-throughput workflows with PRECiV™ software integration
*Based on Evident’s internal research as of October 2025. The guaranteed accuracy and repeatability apply only if the device has been calibrated according to the manufacturer’s specifications and is in defect free condition. Calibration must be performed by an Evident technician or an Evident-authorized specialist.
LEXT OLS5100
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.