25M42A 11A20

The 25M42A 11A20 motor is produced by Vickers for the Vane Motors series and serves as a hydraulic power source that converts pressurized fluid into bidirectional shaft rotation for automation tasks. It uses vane technology to provide consistent torque with low pulsation. Bidirectional rotation allows the unit to drive machinery in either direction without changing plumbing. A SAE 2-bolt mounting flange simplifies installation on common hydraulic frames and keeps alignment accurate. The SAE 4-bolt flange port connection matches standard high-pressure lines to reduce fitting complexity. Together, these features enable straightforward integration of the motor into mobile or industrial hydraulic circuits that require reliable reversible motion.

An external cover port provides the case drain so excess fluid is routed away from the housing and prevents seal pressure buildup. The cover port is arranged opposite the body port, which helps installers route drain lines separately from pressure lines to improve service access. A ring torque rating of 42 in-lb for every 100 psi indicates the capacity of the vane ring to transmit load without distortion, guiding system designers on allowable operating pressure. The 13-tooth 16/32 pitch MDF shaft spline delivers positive drive engagement with compatible couplings and assists in transmitting power without slippage. These specifications support durable operation under continuous hydraulic duty.