Bosch Rexroth | AZ-M-F-12-019-UQR12ML-S0022
AZ-M-F-12-019-UQR12ML-S0022
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The AZ-M-F-12-019-UQR12ML-S0022 is manufactured by Bosch Rexroth within the AZMF External Gear Motors series and is intended to convert hydraulic energy into rotary motion in automated systems. Its displacement is 19.0 cm³ per revolution, delivering a predictable volumetric output for circuit sizing. Universal rotation, identified by code U, lets the shaft operate in either direction to simplify plumbing on reversible drives. The shaft can run as slowly as 500 min⁻¹, allowing stable performance in low-speed feed functions. A maximum rotational speed of 3000 min⁻¹ supports high throughput when rapid actuator movement is needed. Continuous operating pressure is limited to 180 bar so components downstream remain within standard rating, while starting pressure may briefly reach 210 bar to provide extra torque during acceleration. An axial drain port, coded L, routes case leakage straight back to tank and eases manifold mounting. An NBR seal identified by code M protects the shaft interface against oil escape and dust ingress.
Minimum ambient temperature is −30 °C, so cold-start performance is retained in winter climates, and maximum ambient temperature of 80 °C prevents thermal overload in hot engine rooms. Fluid temperature must not exceed 80 °C, keeping internal clearances within design limits. The unit is intended for mineral oil-based fluids specified by DIN/ISO, ensuring compatibility with common hydraulic oils. Permitted viscosity ranges from 12 mm²/s up to 800 mm²/s, giving flexibility in oil selection across typical operating temperatures. Cold starts are acceptable with viscosity up to 2000 mm²/s, preventing cavitation during initial pump circulation. These thermal and viscosity limits define oil cooler and heater requirements for stable service.
Technical Specifications
Ambient Temp Max (nbr)
80 °C
Ambient Temp Min (nbr)
-30 °C
Direction Of Rotation
Universal (code U)
Displacement
19.0 cm3/rev
Drain Port Orientation
Axial (code L)
Fluid Temp Max (nbr)
80 °C
Fluid Type
Mineral Oil-Based (DIN/ISO)
Max Continuous Pressure
180 bar
Max Rotational Speed
3000 min-1
Max Starting Pressure
210 bar
Min Rotational Speed
500 min-1
Seal Material
NBR (code M)
Starting Viscosity Max
2000 mm2/s
Viscosity Permitted Max
800 mm2/s
Viscosity Permitted Min
12 mm2/s
1620 Old Apex Road
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