Bosch Rexroth | AZ-M-F-12-011-UQR12ML-SO018
AZ-M-F-12-011-UQR12ML SO018
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The AZ-M-F-12-011-UQR12ML SO018 external gear motor is part of the AZMF External Gear Motors series produced by Bosch Rexroth for hydraulic automation circuits that require predictable flow at a compact size. This unit moves 11 cm³ of fluid per revolution, giving designers a fixed displacement reference when calculating pump delivery. It accepts rotation in both directions, allowing flexible mounting in drive trains where flow may need to reverse. Continuous operation is possible from 500 to 3500 rpm, so the motor can match slow positioning tasks as well as high-speed work functions. Mineral oil conforming to DIN/ISO standards is the specified medium, and fluid temperature must remain below 80 °C to protect internal clearances. The motor remains lubricated and efficient as long as dynamic viscosity stays above 12 mm²/s, which maintains a stable hydrodynamic film during normal service.
The hydraulic interface is arranged with an axial drain port that uses an M12×1.5 thread with at least 13 mm of usable depth, simplifying line routing in tight manifolds. Cleanliness is preserved by a filtration level of Beta 20 = 75, equivalent to ISO 4406 code 19/16, preventing abrasive wear on gear flanks. Shaft motion accuracy is held to 0.2 mm runout so the coupling can transmit torque without excessive vibration. A nitrile rubber seal contains the working fluid and resists the prescribed temperature window. During cold starts the motor tolerates viscosity up to 2000 mm²/s, while normal running may not exceed 800 mm²/s to avoid inefficiency and cavitation. These characteristics complete the data needed for integrating the unit into closed-loop or open-loop hydraulic systems.
Technical Specifications
Direction Of Rotation
Universal
Displacement
11 cm3/rev
Drain Port Orientation
Axial
Drain Port Thread
M12x1.5
Drain Port Usable Depth (min)
13 mm
Filter Rating
Beta 20=75 (ISO 4406 19/16)
Fluid Temperature (max, Nbr)
80 °C
Fluid Type
Mineral Oil (DIN/ISO)
Maximum Rotation Speed
3500 min-1
Maximum Shaft Runout
0.2 mm
Minimum Rotation Speed
500 min-1
Seal Material
NBR
Starting Viscosity (max)
2000 mm2/s
Viscosity (max)
800 mm2/s
Viscosity (min)
12 mm2/s
1620 Old Apex Road
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