Key Takeaways RBC's Aerospace/Defense segment revenues rose 10.4% year over year in fiscal Q1 2026.Commercial aerospace sales grew 9.6%, while defense market revenues climbed 11.9%.Backlog of $1.02B and strong demand in OEM and aftermarket support future growth.RBC Bearings Incorporated (RBC) is benefiting from solid momentum in aerospace and defense markets. Strength in the commercial aerospace market, driven by strong growth in orders from the OEM (original equipment manufacturer) and the aftermarket vert ...