Release time : 2015-06-11 07:43:01
By Bearing Manufacturer>Bearing News>Do You Have a Good Knowledge of Ceramic Bearings vs Steel Bearings?
Do you know ceramic bearings vs steel bearings well? I will give a brief introduction below for your choice. Firstly, I would like to introduce that our ceramic bearing are divided into four types, including three is the Full Ceramic Bearings, another one is hybrid ceramic bearing. For steel bearing there are four types either, chrome steel, stainless steel and Carbon Steel Bearing. Surly this do not means that we could only supply these types of material, we offer bearings manufactured from all of today's most versatile and durable materials.
Full Ceramic Bearings are made entirely of ceramic material and are superior to common steel bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM's , reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. Ceramic materials commonly used for bearings are Silicon Nitride (Si3N4), Zirconium Oxide (ZrO2), and Silicon Carbide (Sic).
Ceramic bearings vs steel bearings Full ceramic bearings can continue to operate under extremely high temperatures and are capable of operating up to 1800 Deg. F. Ceramic is much lighter than steel and many bearings are 1/3 the weight of a comparable steel bearing. Full ceramic bearings are highly corrosion resistant and will stand up to most common acids; they will not corrode in exposure to water or salt water. And finally full ceramic bearings are non-conductive.
Because ceramic is a glass like surface it has an extremely low coefficient of friction and is ideal for applications seeking to reduce friction. Ceramic balls require less lubricant and have a greater hardness than steel balls which will contribute to increased bearing life. Thermal properties are better than steel balls resulting in less heat generation at high speeds. Full Ceramic bearings can have a retainer or full complement of balls, retainer materials used are PEEk and PTFE.
Ceramic hybrid ball bearings are applied tohigh speed bearings , high precision, long-term use ceramic-steel hybrid bearing rolling bodies (internal and external laps are metal). In general, inner and outer races are made of chrome steel or stainless steel. You may choose ceramic balls consisting of ZRO2, SI3N4, or SIC. SI3N4 overall performance is superior to other ceramic-steel hybrid materials, and it has become a standard first choice.
The most common chrome steel used in bearings, SAE 52100 is a high-carbon chrome alloy that offers exceptional performance at continuous temperatures to 248'F (120'C) and intermittent temperatures to 302'F (150'C). Due to a protective oil coating on exterior surfaces, SAE 52100 bearings are not suitable for applications that may be exposed to food products or those that demand a high degree of cleanliness.
For stainless steel bearings we could supply all kinds of ball bearing with material of Stainless Steel, such as AISI304, AISI316, AISI440B, and AISI440C. The type of bearing enclosed: deep groove ball bearings , angular contact ball bearing, thrust ball bearing.
Ceramic bearings vs steel bearings Stainless steel bearings can work well under such environment which is moisture, corrosive and abrasive. They are widely used for food and beverage processing machinery, medical appliances and medicine equipments. Some time they call it corrosion resistant bearings, waterproof bearings, underwater bearings, non magnetic bearings.