CERÂMICOS OU INOX ? - DIFERENÇAS ENTRE OS ROLAMENTOS DE CARRETILHA

https://www.rolamentosvican.com.br/ COUPON: HIAGOCOSTA VICAN STAINLESS STEEL We can call this line of deep groove ball bearings "conventional bearings," as it is the most commonly found type of bearing on the market and has the sole purpose of fulfilling the rotational function of the mechanism in which it will work. VICAN stainless steel bearings, like any other deep groove ball bearings in stainless steel, are not intended to improve performance or seek any significant gains in increased durability. Due to physical-chemical treatments, stainless steel stands out for being more resistant to oxidation than other metal alloys, such as chrome steel, which makes stainless steel bearings an excellent option for those seeking great cost-effectiveness. However, it is important to emphasize that this type of material is "resistant to" and not "proof against" oxidation. The lack of proper care for the parts, whether in storage, cleaning, or lubrication, can cause corrosion due to material contamination. Stainless steel bearings must always be lubricated for proper operation and to protect them from possible oxidation. We recommend using our special fluids for proper cleaning and lubrication of this type of material. VICAN HYBRID CERAMIC OPEN OR SHIELDED HYBRID OPEN STRUCTURE BEARINGS WITH CERAMIC BALLS AND STAINLESS STEEL RACEWAYS (WITH OR WITHOUT SHIELDING) The benefits of this type of bearing come from the characteristics of ceramic when compared to stainless steel. Among them, the following stand out: greater hardness, low coefficient of thermal expansion, lower weight, greater precision, and greater resistance to corrosion, thermal shock, and impacts. The VICAN brand emerged from the evolution of this type of bearing. Our hybrid bearings have P4 precision - ABEC 7 and are already at an advanced level of development after several years of testing and applications. For those seeking high performance and greater durability, this is one of the best cost-effective options due to the high rotational power achieved by minimizing friction between materials. Shielded hybrid bearings differ from open ones by the shields on their sides. These shields protect the internal structure from the entry of small impurities and also preserve the lubrication of the part for longer, thus minimizing the need for more frequent maintenance. Hybrid bearings have the advantage of being able to operate "dry" in the mechanism in which they are inserted; however, the use of appropriate lubricants is recommended to increase the durability of the parts, reducing wear between components and inhibiting possible oxidation in the stainless steel parts. VICAN FULL CERAMIC 100% CERAMIC BEARINGS WITH ZIRCONIA RACEWAYS AND BALLS AND PTFE CAGE VICAN specializes in high-performance radial ceramic bearings. VICAN's "Full Ceramic" bearings are made entirely of ceramic material and are superior to common stainless steel and hybrid bearings because they are immune to oxidation and other reasons listed below. Ceramic is a glass-like surface polymer with extremely low coefficients of friction and expansion compared to steel, making this type of bearing the ideal choice for those seeking reduced friction and heat resistance. In the case of VICANs “Full Ceramic”, there are two types of polymers in their structure: Zirconia oxide (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 weight reduction (many bearings weigh 1/3 of a steel bearing), and use in aggressive environments where the mechanism is subject not only to high temperatures but also to corrosive substances. *Zirconia is inert to corrosive materials, except for hydrofloric acid and hot concentrated sulfuric acid. Zirconia is lighter than steel, non-magnetic, and has a maximum useful temperature of 400°C. In cages, also known as retainers, polytetrafluoroethylene (PTFE) is used. PTFE is a synthetic fluoropolymer derived from tetrafluoroethylene and has numerous applications. It can withstand high temperatures (up to 330°C) and is very unreactive, partly due to the strength of the carbon-fluorine bonds. Therefore, it is frequently used in containers and piping for reactive and corrosive chemicals. They have the advantage of "working dry" in the mechanism in which they are inserted, as the ceramic balls require less lubricant and have a higher hardness than steel balls, which contributes to increasing the bearing's lifespan. Lubrication is optional in this case, but the use of appropriate lubricants is recommended to increase the durability of the parts, reducing wear between components.