AZMF-12-014-UQR12ML-S0018

The AZMF-12-014-UQR12ML-S0018 external gear motor belongs to the AZMF External Gear Motors series and is manufactured by Bosch Rexroth for hydraulic automation where compact positive-displacement units are required. It delivers a fixed displacement of 14 cm³/rev, converting hydraulic energy into rotary motion with predictable flow output. Continuous operation is supported up to 3000 min⁻¹, while speed can be reduced to 500 min⁻¹ for low-flow duties without loss of lubrication. The motor withstands working pressures up to 210 bar, permitting it to drive actuation circuits that demand moderate torque. Its rotation direction is universal, so the same unit can be installed for clockwise or counter-clockwise flow without internal changes. An axial drain port is integrated in the rear cover to return case leakage directly to tank and prevent seal overload. The hydraulic passages are intended for mineral oil-based fluid, maintaining compatibility with common power transmission media.

For reliable starting in cold systems the motor tolerates fluid viscosity up to 2000 mm²/s; during normal running viscosity should remain above 12 mm²/s to sustain hydrodynamic film strength. The hydraulic fluid may reach temperatures up to +80 °C without degrading internal components. NBR seals are fitted to resist swelling and leakage across this thermal range. The assembly remains functional in ambient environments from −30 °C to +80 °C, accommodating cold starts and high-temperature enclosures. System cleanliness must be controlled to ISO 4406 class 19/16 or better to avoid abrasive wear in the gear set. Adhering to these limits preserves volumetric efficiency and allows the motor to perform consistently across mobile and industrial hydraulic drives.