Silicon Nitride Ceramic Bearings Reach 30,000 rpm: Why EV eAxles Are Becoming a Major Si₃N₄ Application
Electric-vehicle powertrains are changing the requirements placed on bearings. A conventional vehicle transmission is largely mechanical. An electric eAxle integrates: As manufacturers increase motor speed to reduce motor size and weight, bearing rotational speeds are rising sharply. In June 2026, JTEKT announced a grease-lubricated ceramic-ball bearing designed for high-performance EV eAxles with operation up to […]



