Ceramic bearings and conventional bearings (generally referring to bearing steel) have some differences in materials and characteristics, and they also have their own advantages, disadvantages, and applicable fields.
Differences: 1. Material: Ceramic bearings use ceramic materials, such as aluminum oxide, silicon nitride, etc; Conventional bearings use metal materials such as bearing steel. 2. Density and hardness: Ceramic bearings have lower density and higher hardness; Conventional bearings have high density and hardness. 3. Friction coefficient: Ceramic bearings have a lower friction coefficient and better self-lubricating characteristics; Conventional bearings have a high coefficient of friction. 4. Corrosion resistance: Ceramic bearings have good corrosion resistance and are less susceptible to corrosion by chemicals, acids, and alkalis; Conventional bearings are prone to corrosion in corrosive environments.
Advantages and disadvantages:
Advantages of ceramic bearings:
-Higher hardness and rigidity provide higher wear resistance.
-Lower friction coefficient and smaller frictional heat.
-Strong corrosion resistance.
-Capable of maintaining stability under high temperature and high-speed operating conditions.
Disadvantages of ceramic bearings:
-Expensive manufacturing costs.
-It is brittle and easily damaged by impact and collision.
-Not suitable for high load and shock load scenarios.
Advantages of conventional bearings:
-Low cost and mature manufacturing process.
-High toughness and impact resistance.
-Suitable for conventional industrial equipment and traditional application scenarios.
Disadvantages of conventional bearings:
-High friction coefficient and friction heat.
-It may be affected by thermal expansion and wear in high temperature and high-speed environments.
-It is prone to oxidation and corrosion in corrosive environments.
Differences in application fields:
Ceramic bearings are mainly suitable for environments with high requirements for high hardness, wear resistance, and high-temperature stability, such as applications in space, chemical engineering, and other fields. Conventional bearings are suitable for both conventional and traditional industrial equipment, and are widely used in industries such as machinery, automobiles, and motors.
Suitable bearing types need to be selected based on specific application requirements and working environment to meet performance, reliability, and economic requirements.
