... resistance, anti-corrosion, self-lubrication and maintenance, low noise, higher load capacity, high/low temperature resistance etc.2) Series available: Single-row ... speed,vacuum,fixed anode X-ray tube,high temp,low temp,electric insulation,high precision ballscrew set,valve balls ... to wear.ZrO2:Usage:high precision,vacuum, high temp,low temp,electric insulation,high precision ballscrew set,valve balls ...