Hybrid Ceramic Bearings – BEARIC
Published on : Friday 03-02-2023
Bearic offers a wide range of hybrid bearings to eliminate premature bearing failure caused by electric arc bearing damage.
Bearic – Hybrid Ceramic Bearings – the latest offering from Durga Mechatronics, are equipped with high-electrically insulated Japanese ceramic balls which improve energy efficiency in combination with rings made with high quality SAE52100 steel. In addition to being excellent insulators, hybrid bearings have a higher speed capability and provide longer service life than all steel bearings in most applications. These bearings can be used in diverse set of application such as: railways, steel mills, chemical plants and equipment, electric cars, electric motors, etc.
Bearic offers a wide range of hybrid bearings to eliminate premature bearing failure caused by electric arc bearing damage. Hybrid bearings have rings of bearing steel and rolling elements of bearing grade silicon nitride (Si3N4). Because silicon nitride has high resistivity, hybrid bearings provide insulation from electric currents in both AC and DC motors.
In addition to being an excellent insulator, hybrid bearings have a higher speed capacity and will provide longer service life than all-steel bearings in most applications. The density of silicon nitride is only 40 % of the density of bearing steel. Because silicon nitride rolling elements weigh less they have lower inertia. This means less damage to the cage during rapid starts and stops and also significantly lower friction at high speeds. Lower friction means cooler running and thus longer lubricant life. Hybrid bearings are thus suitable for operating at high speeds.
If the lubrication for some reason becomes insufficient, there is no risk of smearing between silicon nitride and steel. Also, the friction coefficient between steel and silicon nitride is low. This enables hybrid bearings to run cooler and last longer in applications where there is inadequate lubrication. Silicon nitride has higher hardness and higher modulus of elasticity than steel. This means high wear resistance, increased bearing stiffness and longer bearing service life in contaminated environments.
Bearic Benefits
• High qualityJapanese ceramic balls
• Operating Life increased by a factor of 3x
• Gives additional rigidity and geometrical accuracy
• Lower friction, so the drive power required is significantly lower
• Lower heating losses
• Extreme protection against passage of current even with Alternating current
• Higher speed capability due to lower density of silicon nitride compared to steel, and
• Lower Overall cost structure.
Durga Mechatronics Private Limited, Mumbai. Tel: 022-68629000. Email: [email protected]