Tianjin Uranus' hydraulic rack and pinion rotary actuator uses a linear-to-rotary conversion mechanism with precision-ground racks (module 3, grade 5). The dual-rack design provides balanced torque output (up to 40,000 N·m) and minimal radial load on the output shaft. The racks are made from 20CrMnTi carburized steel (60 HRC), while the pinion gear features a through-hardened design (55 HRC). This actuator is suitable for large industrial valves, slewing drives, and indexing tables. A wear-compensating mechanism adjusts for rack-pinion clearance, extending service life to 50,000 cycles. Contact us for rack-pinion backlash data or view slewing drive applications at [https://www.uranustj.com/].