Seals and wipers

Seals and wipers are critical protective elements in linear motion systems, specifically designed for linear guide rails and actuators. Seals create a barrier to retain lubricants within the system while preventing internal contamination, while wipers actively scrape away external contaminants like dust, chips, and liquids from the rail surface before they enter the system. These components work in tandem to maintain optimal performance, extend service life, and reduce maintenance frequency by protecting precision rolling elements and raceways from abrasive wear and corrosion.

Seals function through elastic contact pressure against moving surfaces, creating a physical barrier that blocks contaminant ingress and lubricant egress. Wipers operate on a scraping or wiping action, using flexible lips or blades to mechanically remove particulate and liquid contaminants from the rail surface as it moves through the wiper assembly. Both utilize material elasticity and precise geometry to maintain consistent contact without excessive friction.