FULL CERAMIC 6804, 20x32x7 MILLIMETERS VICAN BEARING

VICAN FULL CERAMIC

100% CERAMIC BEARINGS WITH ZIRCONIA RACES AND BALLS AND PTFE CAGE

VICAN specializes in high-performance radial ceramic bearings. “Full Ceramic” VICANs are made entirely of ceramic material and are superior to common stainless steel and hybrid bearings as they are immune to oxidation and other reasons listed below.

Ceramic is a polymer with a surface similar to glass and has extremely low coefficients of friction and expansion compared to steel, which makes this type of bearing the ideal choice for those looking for friction reduction and heat resistance. In the case of “Full Ceramic” VICANs, there are two types of polymers in their structure:

- Zirconium dioxide (ZrO2) is used in the raceways and balls, an ideal material for applications with special objectives, such as achieving higher RPMs (revolutions per minute), seeking to reduce weight (many bearings have 1/3 of the weight of a conventional bearing) and use in aggressive environments where the mechanism is subject not only to high temperatures but also corrosive substances.

*Zirconia is inert to corrosive materials, with the exception of hydrofluoric acid and hot concentrated sulfuric acid. Zirconia is lighter than steel, non-magnetic and has a maximum useful temperature of 752°F (400°C).

- In cages or often also known as retainers, polytetrafluoroethylene (PTFE) is used, a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications in addition to also withstanding high temperatures (up to 626°F or 330°C) and being very unreactive, partly due to the strength of carbon-fluorine bonds and is therefore often used in containers and piping for reactive and corrosive chemicals.

They have the advantage of “working dry” in the mechanism into which they are inserted, as ceramic balls require less lubricant and are harder than steel balls, which contributes to increasing the bearing's useful life. Lubrication in this case is optional, but the use of suitable lubricants is recommended to increase the durability of the parts, reducing wear and tear between components.

We recommend the use of our special fluids for cleaning and adequate lubrication of this type of material.