There are usually two types of ceramic bearings, including all ceramic bearings and hybrid ceramic bearings. All ceramic bearing rings and balls are made of ceramic materials. The hybrid ceramic bearing is composed of bearing steel ferrule and ceramic ball.
Ceramic materials:
Silicon nitride (Si3N4)
Zirconia (ZrO2)
Silicon carbide (SIC)
Our ceramic bearings have been applied to:
Sliding plate and bicycle wheel
Turbocharger
Aerospace equipment
Mechanical tools
Ceramic bearing characteristics:
Accuracy class: abec-1, abec-3, abec-5, ABEC-7, abec-9.
Generally, ABEC5 grade, including ABEC7 and ABEC9, is called high precision bearing. In addition, some customers are still interested in the grade of ceramic balls, which are usually divided into G3, G5, G10 and G16. The smaller the value, the higher the accuracy.
Bearing size: we can provide micro ceramic bearings with a minimum inner diameter of 2mm and large ceramic bearings with an inner diameter of 400mm. We can provide ceramic bearings in English and metric sizes.
Sealing form: generally, all ceramic bearings are open and unsealed, but we can provide all ceramic bearings with PTFE seal.
Ceramic bearings have many advantages:
High speed bearing. Especially for hybrid ceramic bearings, the maximum speed can reach 450000 rpm, which is mainly used in the field of dental handpieces and spindles.
High temperature resistant ceramic bearing. The maximum temperature tolerated in is 1200 degrees Celsius.
Corrosion resistance. The material itself has special corrosion resistance, which can be applied to strong acid, strong alkali, inorganic, organic salt, seawater, etc. application fields: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical devices
Non magnetic: ceramic bearings have no magnetism and do not absorb dust, which can reduce bearing wear and noise. Application examples, such as degaussing equipment, precision instrument field.
Insulation: since high resistance can avoid arc damage to the bearing, the bearing can be used in necessary electronic equipment.
High vacuum: because ceramic materials are self-lubricating and oil-free, ceramic bearings can be used in ultra-high vacuum environment.
