Custom silicon nitride ceramic ball bearings outlive their metal counterparts, cutting down maintenance costs and frequency of replacements. Furthermore, these ball bearings offer greater resistance against corrosion from different chemicals including strong acids and alkalis.
These materials are non-magnetic and non-contaminating, making them the ideal choice for medical equipment like MRI scanners. Furthermore, their low density allows for easy installation without the added expense and hassle of adding additional lubricant.
High-Precision Design
Silicon nitride ceramic ball bearings are precision-manufactured with tight tolerances to maintain consistent load capacity and performance in any condition. They’re ideal for high-speed and heavy-load applications such as aerospace, automotive and medical equipment.
Steel bearings tend to perform consistently over long periods, due to their superior ability to withstand thermal stresses. Their thermal shock-proof properties also protect them from corrosion, oxidation and abrasion; increasing durability and longevity over time.
Ceramic bearings also produce less friction than steel bearings, reducing heat production by approximately 50 percent and thus decreasing cooling system reliance. This can help lower operational risk while improving operating efficiency.
Silicon nitride bearings have the capability of running with minimal or no lubrication at all, which allows for significant cost savings in some environments. However, it is essential that you assess the lubrication needs for your particular application and adhere to recommended handling and installation practices in order to achieve maximum performance and safety.
Corrosion Resistance
Ceramic ball bearings are well-suited to operating in harsh environments due to their low coefficient of friction, corrosion resistance and high temperature resistance – these characteristics make them perfect for temperatures above 1200degF without losing their properties or succumbing to acids, alkalis or seawater corrosion.
Ceramic materials’ fracture toughness and hardness enhance their performance across a range of demanding applications, from impact resistance and shock absorption to superior rolling life compared to steel bearings. Their low friction levels reduce energy loss, heat generation and wear-and-tear–even eliminating frequent lubrication needs in many situations.
Ceramic’s lower density helps reduce centrifugal force during operation, making them suitable for precision applications and electric vehicle traction motors. Their ability to withstand extreme temperatures, chemical environments, marine environments and electrical insulation make hybrid ceramic bearings an efficient way of decreasing power consumption while increasing efficiency compared to traditional metal bearings while offering greater load capacity in smaller designs.
High-Temperature Resistance
Silicon nitride ceramics retain their hardness and mechanical strength even in extremely hot environments, making them suitable for applications like high-heat industrial equipment or spacecraft engines. Furthermore, these lightweight ceramics can protect against corrosive chemicals while protecting against electrical arcing in high-voltage electric motors – plus reduce centrifugal force and rolling friction at higher speeds by being lighter than their metal counterparts.
CoorsTek’s silicon nitride ceramic materials allow them to craft precision deep groove ball, angular contact needle and roller bearings of all sizes ranging from deep groove ball bearings up to 50 mm (2in). Custom sizes for small applications range from 0.5mm (0.02in).
Silicon nitride is an advanced ceramic that requires special handling and maintenance procedures for optimal performance. To achieve maximum effectiveness, damaged or worn parts should be replaced quickly, and stored using quality seals to avoid damage or contamination during storage. Furthermore, inspection and record keeping practices should be set in place so maintenance personnel can quickly identify problems and plan replacements as soon as necessary.
Non-Contaminating
Silicon nitride ceramic ball bearings are non-contaminating, meaning they won’t attract and retain dirt or contaminants like grease would. As such, they make an ideal choice for environments in which cleanliness is of utmost importance; additionally, their reduced maintenance requirements also contribute to reduced overall ownership costs for equipment.
As these bearings produce low friction levels, their use reduces heat generation and energy loss for greater system efficiency – especially with advanced hybrid bearings made up of both steel and ceramic components.
These characteristics make these bearings ideal for applications requiring high performance, such as aerospace equipment gyroscopes and guidance systems, medical devices like MRI scanners, high performance car wheels, among others. Furthermore, their low coefficient of thermal expansion means they’ll handle temperature fluctuations better and offer consistent performance, leading to longer lifespan and less frequent replacement needs – further lowering total cost of ownership.
Non-Magnetic
Silicon nitride ceramic is one of the strongest yet lightest ceramic materials. It is also highly corrosion resistant, handling strong acids, alkalis and seawater without issue. Similar to zirconia bearings, silicon nitride ceramic can withstand temperatures ranging from -210degC up to 800degC when fitted with a cage and 1200degC when not. Furthermore, this nonmagnetic material offers electrical isolation making it suitable for use where corrosion or magnetic fields cannot be tolerated – ideal for applications where corrosion or magnetic fields cannot.
Silicon nitride ceramic ball bearings are well-suited to numerous industries due to their durability, low friction, and temperature resistance; aerospace applications include machine tools and precision equipment as well as medical imaging devices like MRI scanners and semiconductor manufacturing equipment. Their non-magnetic properties and reliable high speed performance have even allowed them to withstand sudden temperature changes that might otherwise cause metals to fracture and break.