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ALM series external gear motors Group 1, 2 and 3

ALM series external gear motors Group 1, 2 and 3
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ALM series external gear motors Group 1, 2 and 3

Product catalog summary
Overview: This document is a technical catalogue for ALM Series External Gear Motors, focusing on mechanical and fluid power applications. It provides detailed specifications, installation guidelines, and performance data for various gear motor series, suitable for industries such as aerospace, marine, medical, automotive, agricultural, and construction.
Specifications: The catalogue covers gear motors in groups 1, 2, and 3, featuring the patented Elika profile for reduced noise and improved efficiency. These motors are designed for medium to high pressure applications, with a high-pressure Teflon shaft seal capable of withstanding over 210 bar.
Design and Features: The gear motors have a helical gear profile that reduces noise and pressure oscillations, enhancing performance and longevity. They are constructed with special steel gears and aluminum bushings for high efficiency and reliability under heavy operating conditions.
Installation and Running Information: Detailed instructions are provided to ensure optimal performance and reliability. Key points include protecting the drive shaft seal during painting, ensuring cleanliness, and proper alignment to avoid axial or radial loads.
Technical Data: The document includes dimensions, technical data tables, and performance curves for the ALM1, ALM2, and ALM3 series, along with ordering codes and information on flanges, shafts, and ports.
Standards and Certifications: jbj Techniques Limited is ISO certified and offers products that comply with ATEX directive 94/9/E requirements, ensuring adherence to international industrial standards.
Additional Products: The catalogue mentions the GHM Series Gear Motors, ALPC/GHPC Series Short Multiple Gear Pumps, and 1P Series Gear Pumps, emphasizing their robust construction and high performance.
Installation and Startup Procedures: Ensure the motor does not run below the minimum speed with pressure exceeding specified limits. Proper startup procedures, such as bleeding air from the circuit, are recommended to prevent early motor failures due to contamination.
System Design and Assembly: Attention should be given to the design and assembly of the hydraulic system, focusing on intake, delivery, return, and drain pipes. Gradually increase pressure and monitor temperatures and rotation speeds to stay within model-specific limits.
Cleaning and Filtering: Preventive and corrective measures are necessary to limit contamination. Use a filtering system with an absolute filtering capability of 5 μm or lower for sophisticated systems.
Hydraulic Fluids and Specifications: Use mineral oil-based hydraulic fluids with anti-wear, anti-foaming, antioxidant, anti-corrosion, and lubricating properties. Comply with DIN 51525 and VDMA 24317 standards.
Pressure and Speed Limits: Product tables specify maximum pressure levels and rotation speeds for each motor group. Ensure the direction of rotation is consistent with the inlet side for mono-directional motors.
Fluid Velocity and Torque Calculations: Calculate fluid velocity and necessary torque using provided formulas. Ensure mechanical power transmission couplings do not transfer radial or axial thrust to the motor shaft to prevent wear.
Hydraulic Power Calculation: The hydraulic power delivered by a motor is calculated using the formula: P = (Q • Dp • htot) / 600 [kW].
Ordering and Configuration: The ALM1 series motors come in various configurations with different flanges, shafts, and ports. The ordering code specifies the type of motor, rotation, size, ports, seals, and options.
Technical Support: For further details on system operating conditions or specific configurations, contact jbj Techniques technical office via email or telephone.
Conclusion: The document serves as a comprehensive guide for selecting and configuring gear motors from the ALM2 and ALM3 series, providing essential technical data and installation instructions. jbj Techniques Limited is committed to providing comprehensive solutions and maintaining high-quality standards in the industry.
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Catalog excerpts

ALM series external gear motors Group 1, 2 and 3-1

ALM Series External Gear Motors Groups 1, 2 & 3 GEAR MOTORS Quality Products for Mechanical & Fluid Power

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ALM series external gear motors Group 1, 2 and 3-2

an excellence in engineering www.jbj.co.uk/pumpsandmotors.html Reduce noise levels by an average of 15 dBA. Gear pump high pressure, teflon shaft seal can Including group 2, 3 and multiple pumps. The bear over-pressures of over 210 bar. A system of helical profile of the gears reduces pressure radial sealing at the shaft that can bear enormous oscillations and vibrations produced by the pump internal over-pressures without resulting in and transmitted to the other components, reducing damage. This radial sealing is particularly useful in the noise of the hydraulic system. Axial forces single direction...

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ALM series external gear motors Group 1, 2 and 3-3

Gear Motors Page Full range of gear pumps and motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ALM Series installation and running information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ALM1 Series ordering codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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ALM series external gear motors Group 1, 2 and 3-5

www.jbj.co.uk/gearpumps.html www.jbj.co.uk/gearpumps.html 0.25 - 0.5 Series Micro Gear Pumps Extensive range and very high performance of these pumps integrated in to micro power packs make them ideal for many applications from aerospace to marine, medical to automotive. 1P Series Gear Pumps High production rates, performance consistency and absolute reliability ensure this a benchmark product for the hydraulic power pack market. ALP Series Gear Pumps This product range includes pumps of displacements (up to 200cc/rev) in a full aluminium configuration, able to withstand medium to high pressures...

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ALM series external gear motors Group 1, 2 and 3-6

Gear Motors Basic Design Drive Gear Driven gear Bushings Body Flange Cover Rotary shaft seal Compensation seals Anti-extrusion seals stop Ring support ring Gear motors convert hydraulic pressure and flow into torque and angular displacement, rotary mechanical power, applied to a load via the shaft. They feature versatility, strength and long useful life. Their simple construction compared to other types of motors (piston, orbital, etc) ensures limited purchase costs and servicing. Thanks to these basic concepts, together with ever-improving product design and features, research-based on many years...

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ALM series external gear motors Group 1, 2 and 3-7

Gear Motors ALM Series Product RangeMARZOCCHIPOMPE Bi-directional motors. Produced in three different groups with very good power/weight ratio and power/size ratio allowing a wide range of displacements within each group (between 2.8 and 87 cc/rev). The wide range of allowed speeds, the excellent functionality also on their use in series, with strong counter-pressures and limited drain, give to motors of the ALM series very good characteristics even starting under load. The drain is always external and it is through a thread port on the cover. A range of flanges, shafts, inlet and pressure ports...

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ALM series external gear motors Group 1, 2 and 3-8

Gear Motors ALM Series Installation and Running Information It is essential for correct running, top performance and longer life of the GHM series hydraulic gear motors to follow the installation and running information provided in this catalogue. Some general considerations should be made regarding the hydraulic system, in which the motor is to be fitted. Special attention should be given to hydraulic system design and assembly, especially to intake, delivery, return and drain pipes and position of system parts (valves, filters, tanks, heat exchangers and accumulators). Proper safety devices and...

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ALM series external gear motors Group 1, 2 and 3-9

Gear Motors ALM Series Installation and Running InformationMARZOCCHIPOMPE Fluid contamination level check and correction during operation can be obtained through filters that retain the particles present in the fluid itself. Two parameters tell which filter is most suitable: absolute filtering power and p filtering ratio. Low absolute filtering power and high p filtering ratio for small particles help ensuring good filtration. It is then very important to limit not only maximum dimensions, but also the number of smaller particles that pass through the filter. It goes without saying that with...

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ALM series external gear motors Group 1, 2 and 3-10

Gear Motors ALM Series Installation and Running Information MARZOCCHIPOMPE Pressure Definition Product tables show three max. pressure levels (PC, PI and PP) to which each motor can be used. PC = max pressure continually as output counterpressure. Pi = max inlet pressure continually. PP = max peak inlet pressure. The value of the maximum continuous PI pressure can be reached only if the following ranges of rotation are not overcome. The motors of the GHM series can be supplied both in mono-directional version and bi-directional. The direction of rotation is defined in the following way: looking...

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ALM series external gear motors Group 1, 2 and 3-11

Gear Motors ALM Series Installation and Running Information Drive The link between the motor and the driven device must be via a mechanical power transmission coupling that will not transfer radial and/or axial thrust to the shaft of the motor otherwise wear of the internal components will quickly occur. jbj Techniques have a wide range of suitable couplings to suit a wide range of applications and we can advise on which coupling depending on the circumstances of the application. In case of axial and/or radial loads on the motor’s shaft T option is available for some GHM2 models and RA option...

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ALM series external gear motors Group 1, 2 and 3-12

Ordering Code Shaft* Seals omit (T range = -10°C + 80°C) V Drain E0 = internal drain E1 = external drain G1/4 E2 = external drain 9/6-18 UNF*** (*) = to be specified if different from standard “motor type”. (**) = only for R rotation. (***) = "E2" drain port is machined in compliance with threaded port with O-ring seal in truncated housing SAE J1926/1 (ISO 11926-1). Thread depth 12,7 mm. Motor Standard Types omit = European flange + shaft T0 + ports E + standard seals. A=flange A+shaft C1 + ports FA+standard seals. Examples ALM1-D-2 = clockwise rotation, 1.4 cc/rev, European flange,1:8 tapered...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.