The Drive & Control Company Rexroth Bosch Group External gear motor High Performance AZMB RE 14027 Edition: 03.2016 Features ► Consistently high quality due to high-volume series production ► Long service life ► Large speed range ► Slide bearings for high loads ► Optional reversible version for 2-quadrant and 4-quadrant operation ► Variety of versions available ► Output shafts conform to ISO or SAE and customer-specific solutions ► Line connections: Connection flange or screw thread ► High pressures with small installation space and low weight ► Large viscosity and temperature range Flow and power characteristic curves 6 Gear motors with integrated valves 8 Dimensions - drive shafts 9 Dimensions - front cover 9 Dimensions - line connections 10 Dimensions - preferred series 11 Order number overview 16

AZMB | External gear motor Functional description Functional description General Reversible gear motor If pressurized oil is fed into the motor, a torque can be The displacement principle of external gear motors is the obtained from the shaft leading out of the housing. opposite of that of pumps. Reversible motors are an exception Motors can be either for one direction of rotation or revers- to this concept. Due to their symmetrical layout, the high- pressure and low-pressure chambers are separate from the bearing and shaft seal chambers. Any leakage oil is drained Gear motor for one direction...

AZMB | External gear motor Technical data General Weight Installation position Mounting type Line connections Direction of rotation (viewed on drive shaft) kg See dimensions starting on page 11 No restrictions Flange or through-bolting with spigot Flange, thread Non-reversible or reversible Drive shaft load Radial and axial forces only after consultation Ambient temperature range 6 °C -30 to +80 with NBR seals (NBR = nitrile rubber) -20 to +110 with FKM seals (FKM = fluoroelastomer) Hydraulic Hydraulic fluid Hydraulic fluid temperature range Viscosity range Minimum for continuous...

External gear motor | AZMB 5 Technical data Geometric displacement per revolution Vg cm3 2.5 3.15 4.0 4.5 5.0 6.3 7.1 Maximum drain port abs. pL bar 3 3 3 3 3 3 3 Minimum motor input abs. pmin bar 0.7 0.7 0.7 0.7 0.7 0.7 0.7 pressure Maximum intermittent pressure p2 bar 250 250 250 250 250 250 230 Motor output pressure pA bar For reversible motors: < working pressure For non-reversible motors: max. 3 bar absolute, 10 bar on start-up Minimum speed nmin rpm 750 750 750 750 750 750 750...

AZMB | External gear motor Flow and power characteristic curves Flow and power characteristic curves ▼▼ Size 2.5 Rotational speed n [rpm] ▼▼ Size 3.1

External gear motor | AZMB 7 Flow and power characteristic curves Characteristic curves measured at ν = 32 mm²/sec and

AZMB | External gear motor Output drives Output drives 1. Elastic couplings for permissible shaft misalignments. should not exceed 0.2 mm. ▶▶ See the coupling manufacturer’s assembly instructions ▶▶ The maximum radial run-out from the shaft to the spigot ▶▶ The coupling should not transfer any radial or axial Drive shaft 2. Coupling dog ▶▶ For attaching the motor directly to a gear, etc. ▶▶ Motor drive shaft with special coupling dog and driver (3) ▶▶ No shaft seal ▶▶ Output side installation and sealing according to follow- ▶▶ Output shaft on the customer side (1) –– Case-hardening steel as...

External gear motor | AZMB 9 Dimensions – drive shafts Dimensions – drive shafts Dimensions – front cover Gap b/w valve stem and shaft 0.2+0.5 Pump without shaft seal Pump without shaft seal O-ring included ▼▼ 2-bolt mounting ⌀32 mm with O-ring

10 AZMB | External gear motor Dimensions - line connections ▼ ISO 228/1 pipe thread (limited service life compared to line connection 20)

External gear motor | AZMB 11 Dimensions - preferred series ▼ Tapered shaft 1:8 with rectangular flange 025.38 mm AZMB-32- ... UHO20PL

12 AZMB | External gear motor Dimensions - line connections ▼ Tapered shaft 1:5 with rectangular flange 032 mm AZMB-32- ... UCP20PL

External gear motor | AZMB 13 Accessories Gear motor flanges, straight, for square flange 20 (see page 10) Complete fitting with O-ring, metric screw set, nuts and olive. Gear pump flanges, 90° angle, for square flange 20 (see page 10) Complete fitting with O-ring, metric screw set, nuts and olive. Notice You can find the permissible tightening torques in our publication 07012-B1 “General Instruction Manual for External Gear Units”.

14 AZMB | External gear motor Spare parts

External gear motor | AZMB 15 Notes on commissioning Notes on commissioning General Motors delivered by Bosch Rexroth are tested for function and performance. Any modifications will void the warranty. The motor should only be operated with the permissible data (see page 4). Technical data All specified technical data depends on manufacturing tolerances and apply under certain general conditions. Note that this can result in some variance and that technical data may also vary under certain general conditions (e.g., viscosity). Characteristic curves When dimensioning the gear motor, observe the...

16 AZMB | External gear motor Order number overview Order number Type Page

External gear motor | AZMB 17 AZ configurator With our practical product selector, it will take you next to You want to quickly determine the noise level of an applica- no time to find the right solution for your applications, no tion but don’t have a measuring device at hand? No prob- matter whether it is High Performance or another external lem with Fit4SILENCE! Our new noise measurement app for gear unit. all Android devices can be immediately downloaded free of The selector guides you through a selection of features to charge. After calibration, you can start using it straight all of the...