Croix Gear, a US-based manufacturer of custom gears, has recently achieved AS9100D certification, aligning its quality management system with aerospace and defense industry standards. The certification applies to the company’s full range of manufacturing processes and reflects implementation of documented traceability, process control, and continuous improvement protocols. Best known for its specialization in bevel gears—including spiral bevel, straight bevel, hypoid bevel, and Zerol® configurations—Croix Gear serves a range of industries requiring application-specific gear geometries and high dimensional stability. The company also produces spur, helical, internal, and worm gears and maintains capabilities for high-accuracy gear inspection and quality documentation to customer specifications. With AS9100D now in place, Croix Gear is positioned to support more complex requirements in aerospace and defense applications, where performance tolerances, material conformance, and process traceability are critical. The company’s bevel gear expertise includes precision matching, optimized tooth contact patterns, and consistent profile control across batches. Croix Gear is exhibiting at Booth 613 at this year’s Motion + Power Technology Expo. Technical representatives will be available to provide details on gear manufacturing capabilities, inspection protocols, and aerospace-related production workflows.