Displacement is an important starting point when selecting a hydraulic gear pump or motor. It does not describe every operating limit.

Check the selected model’s pressure and speed limits alongside the required performance. Motor direction, allowable outlet back pressure and drain arrangements also matter.

The Marzocchi range supplied by jbj Techniques includes micro... (read more)

A pump flange and shaft may fit the proposed drive arrangement, but dimensional compatibility alone does not establish that the complete connection is suitable.

The prime mover, transmitted torque, operating speed, alignment and torsional behaviour also need consideration.

Hydraulic pumps may be driven by electric, hydraulic or pneumatic motors, or internal combustion engin... (read more)

Replacing a diesel engine does not automatically mean replacing the equipment it drives. The mechanical interface deserves examination before the retrofit arrangement is decided.

In one project, jbj Techniques connected a 250 kW electric motor to an existing SAE clutch arrangement while preserving the option of returning to diesel power.

An 800 mm diameter cast iron bellhou... (read more)

Industrial machinery across sectors from mobile hydraulics to electric vehicles continues to face increasing thermal management demands as power densities rise and system packaging becomes more compact. jbj Techniques has strengthened its portfolio of industrial cooling and heat-exchange technologies designed to improve uptime, reliability and component lifespan across a wide range of op... (read more)

A coupling enquiry is easier to assess when the operating conditions are captured in one place.

Before selection, record:

» Power and rotational speed.

» Driver and driven equipment.

» Starting conditions, shock loads and duty.

» Expected angular, parallel and axial misalignment.

»... (read more)

Before choosing a hydraulic power pack, establish what the machine needs throughout its operating cycle.

Five starting checks are:

» Required flow and operating pressure.

» Electrical supply and motor requirements.

» Duty cycle and operating sequence.

» Reservoir capacity and installation space.

» Control func... (read more)

A drive with a strongly fluctuating torque pattern needs coupling selection that considers torsional behaviour as well as nominal torque.

ELPEX couplings combine low torsional stiffness with damping capacity and are suited to applications with non-uniform torque and substantial shaft misalignment.

The range includes shaft-to-shaft and flange-to-shaft arrangements. Split fle... (read more)

Full Marzocchi Pompe, FTP, Fluid Transfer Pump specification catalogue link found via the link within this article . . . (read more)

Recurring high oil temperature deserves an assessment of the hydraulic system and its cooling conditions before a replacement cooler is selected.

Where is heat being generated? What heat load must be removed? Are oil flow, airflow and ambient conditions consistent with the existing cooler’s requirements?

Available space, operating duty and installation conditions also... (read more)

Before fitting another identical coupling element, examine what the failed component can tell you about the drive.

In the example shown, compression of the elastomer spider legs displaced material towards the centre, changing the originally circular opening into a square profile. That deformation provides evidence of the loading experienced.

Investigate the power, speed, st... (read more)

For machine manufacturers requiring improved performance or combined cooling of multiple media in a compact design or different cooler shape.

When machine builders require improved performance or combined cooling of multiple media in a compact design or different cooler shape / build footprint they turn to the expertise behind these carefully designed cooling solutions.

A material jam or blockage can suddenly overload a machine drive. A torque limiting coupling provides a means of interrupting torque transmission when the set threshold is exceeded.

The backlash-free units available through jbj Techniques combine compact construction with rapid disengagement and adjustable torque settings.

Versions offer re-engagement at a defined angular p... (read more)

When several machine functions need different hydraulic flows, a motor driving multiple pumps can provide a dedicated supply for each function.

For a road marking vehicle, jbj Techniques designed an assembly in which one hydraulic gear motor drives three gear pumps of different capacities. Each pump serves a separate function.

The arrangement removed the need for a flow div... (read more)

An alternative worth considering before machining a keyway

Connecting a pulley, sprocket, gear or coupling to a shaft? A keyed connection may be familiar, but a keyless shaft locking device offers another option, particularly when positioning, adjustment or removal matters.

Clamping cones secure the hub to the shaft, allowing its position to be set before tightening.

Matching the starter to the engine and installation

Selecting an air starter means checking more than whether it fits the engine. Available air pressure, the required starting performance and the operating environment all influence the choice.

Before specifying a unit, establish:

» Which engine is being started?

» What a... (read more)

The Output Shaft Carries more than Driving Torque

A planetary gearbox may meet your torque and speed requirements, but what other loads will its output shaft carry? Radial and axial forces also need consideration when assessing suitability and bearing life.

Before selecting a gearbox, check:

• Required output torque and speed.
• Operating du...

Driving several hydraulic pumps from one engine or electric motor requires consideration of each circuit's demand. A splitter gearbox must suit the combined load, individual pump speeds and physical installation.

jbj Techniques' pump-drive guide explains six considerations:
» Power: establish each circuit's flow and pressure requirements, including which f... (read more)

jbj Techniques Showcases Integrated Approach to Engine Starting and Safety Systems

jbj Techniques has introduced an expanded range of GALI engine starting and protection systems, highlighting a systems-led approach to improving reliability, safety and operational control in large engine applications.

Detailed in a newly released technical catalogue, the range combines air a... (read more)

ATEX Compliant Flameproof Alternators

Key features:

» Designed for use in hazardous/explosive atmospheres (gas, vapour, or dust).
» Certified to ATEX / IECEx / UKEX standards for safe operation in classified zones.
» Flameproof enclosure prevents internal ignition from spreading externally.
» S... (read more)

Mechanical power transmission couplings: types, selection & supply.

» Expert advice to select the correct coupling.
» Extensive stock for fast delivery.
» In-house machine shop for precise, application-specific fitting.
» Reliable solutions to keep machinery performing optimally.
» Friendly, knowledgeable support... (read more)

The facts about the Marzocchi Pompe, FTP, Fluid Transfer Helical Gear Pump

At jbj Techniques, we are dedicated to bringing the best in fluid transfer technology to our customers. That’s why we believe in the Marzocchi FTP Series Fluid Transfer Pump, an innovative, high-performance solution designed to increase efficiency, reduce noise, and lower operational costs.

Eng... (read more)

In hazardous-area applications, small hydraulic problems can quickly become major reliability and safety risks.
In hazardous-area hydraulic systems, fluctuating flow and pressure conditions can generate pulsation and frictional heating at hydraulic pump shaft seals. (read more)

Gear motors convert hydraulic pressure and flow into torque and angular displacement. Rotary mechanical power, applied to a load via the shaft.

Mechanical power from a hydraulic source; hydraulic fluid is moved into the motor causing the matched gear set to rotate. One of the gears is connected to the motor output shaft so producing the rotary mechanical power.
... (read more)

Designed to meet the exacting safety standards of the offshore and chemical process industries, jbj Techniques Ltd. produce adaptor kits certificated to Directive 2014/34/EU II2GD-IM2-TX -50 C< Service Temp < +105 C. Harmonised standards BS EN 1127:1, BS EN 13463:1, BS EN13463:5, BS EN 50303, BS EN 1834-1,BS EN 1834-3. Generally manufactured in Cast or Nodular iron, bellhousings c... (read more)

This range of torsional couplings solve torsional vibration problems typical of those found in diesel engine applications. The torsional coupling dampens torsional vibrations and tunes the system to have critical speeds outside the operating range.
jbj Techniques Ltd can analyse the application and determine the exact torsional coupling needed for almost any application.

For... (read more)

RUPEX^® pin and bush couplings link machine shafts and compensate for shaft misalignment with weak restorative forces.
The torque is conducted through elastomer elements, so the coupling has typically flexible rubber properties.
Thanks to their robust design, RUPEX couplings are also suitable for harsh operating conditions.

Benefits
RUPEX... (read more)

ELPEX-B couplings are highly flexible and free of torsional backlash. Because of their low torsional stiffness and damping capacity, ELPEX-B couplings are especially suitable for coupling machines with a highly non uniform torque pattern. ELPEX-B couplings are also suitable for connecting machines with high shaft misalignment. The elastic tire can simply be slipped over the hub parts. Th... (read more)

ELPEX-S couplings (torques between 330 Nm and 63,000 Nm) are highly torsionally flexible and because of their low torsional stiffness and damping capacity are especially suitable for coupling machines with a highly non uniform torque pattern. Standard ELPEX-S coupling types are designed as flange-shaft-connections or shaft-shaft connections (read more)

Allow close coupling of hydraulic pumps directly to the flywheel / flywheel housing of diesel engines, electric and hydraulic motors.

Designed primarily to allow the close coupling of hydraulic pumps to a variety of prime movers, such as diesel / petrol engines, electric, air or hydraulic motors, they can also be used in the connection from prime mover to alternative driven parts... (read more)

Complete range of multi-purpose planetary gears. Input can be via electric motor, hydraulic motor, air motor or bare input shaft, be it either a splined or parallel keyed input shaft. (read more)

Hydraulic starters are a reliable option for an emergency start situation, due to the independent hydraulic circuit with few moving parts. Hydraulic starting can be activated manually, making it an ideal solution for "Black Starts."

Hydraulic Starters

» For starting internal combustion engines.
» Very low maintenance requirement.
... (read more)

» Swing air gate shut off valves.
» Their primarily used being to shut off the air inlet supply to an engine to prevent a potential explosion.
» Easy installation and handling.
» Special guillotine design.
» Extremely fast closing times.
» Very compact design.
» Standa... (read more)

» For engine build up and servicing.
‍» Provides the ability to rotate all sizes of engines.
» Designed to slowly rotate the engine crankshaft (left /right) and to lock it in any required position.
» Generally mounted on the engine flywheel housing.
» For temporary installation, a separate mounting b... (read more)

Zero Backlash Bellows Couplings

jbj Techniques Limited offers zero-backlash metal bellows couplings designed for high-precision, highly dynamic drive systems. Featuring torsionally rigid stainless-steel bellows construction, the couplings deliver vibration-damping performance, high positioning accuracy, and maintenance-free torque transmission while compensating axial, radi... (read more)

Quiet, compact, reliable: Braking & sensing solutions for modern robotics.

Robotics & Medical Brakes
The MCNB-Z Series Spring Applied Brakes provide a new approach to power-off holding brakes in robotics and medical equipment, offering both safety and precision motion control.

Design Advantages
For many years, permanent magnet brakes were the... (read more)

Does your machinery generate excessive noise?
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Are you experiencing hydraulic pulsation issues?
‍
Looking for ways to boost efficiency within your hydraulic systems?
These common challenges can lead to more significant problems down the road if left unchecked:
‍
• Excessive vibration can accelerate the wear... (read more)

Benefits
ARPEX couplings of the ARW-4/-6 series are outstanding for their large angular misalignment capacity of 3°. They were specially designed for drives where high misalignments which have to be compensated for by the coupling are to be expected. The intermediate spacer lengths are variable and are manufactured to customer specifications.
Application
... (read more)

Industrial Precision Flow Meters for Hydraulics, Fuel Transfer & Dosing

High-Precision flow measurement for demanding industrial applications.
Precision | Durability | Confidence in every measurement.

Precision Flow Meters for Demanding Industrial Applications:
» Flow Meters for Industrial Hydraulic Systems.
» Flow Meters for Ind... (read more)

When the Engine Must Stop:
The Science of a Controlled Shutdown

Make a Controlled Stop of an Internal Combustion Engine

Shutting of the fuel flow is not always the answer!

Potentially present hydrocarbons in the atmosphere can be a problem when attempting to make a controlled stop of an internal combustion engine.

These hydroc... (read more)

The low noise, high efficiency, low pulsation, fluid transfer, helical gear pump reduces noise level by an average of 15 dBA.
Ideal for low-pressure, low viscosity lubrication applications such as fire-resistant fluids. (read more)

Reduce noise levels by an average of 15 dBA. Up to 20dBA depending on pump size.

The helical profile of the gears reduces pressure oscillations and vibrations produced by the pump and transmitted to the other components, reducing the noise of the hydraulic system.
Axial forces induced by the helical teeth are optimally balanced in all operating conditions by the axial compens... (read more)

AC drives with integrated hydraulic pump GA series for offline cooling circuits where pressure spikes occur within the main hydraulic circuit. Combination coolers allow the cooling of both oil and water circuits within mobile applications.
Fan drives for vehicle cooling systems supplied with fully programmable electronic control unit.
ATEX certification for suitable units on r... (read more)

Transmit mechanical power using these drive shafts strong enough to bear the stress, while avoiding too much additional weight which would increase inertia of the system. Vibration damping and misalignment correction built in.

» Dampen vibration.
» Easy installed maintenance for extended life.
» Wide range of shaft configurations. Custom designs and l... (read more)

jbj Techniques Limited offer the most comprehensive range of bellhousings in Europe. Designed to connect electric motors with frame size IEC D56 - D400 (0.06kW – 750kW) and can be compatible with electric motor 'B5' or 'B14' flange configurations. Accompanying the metric frame units above is a complete range of mountings to suit Nema and imperial frame motors with 'C' face or 'D' f... (read more)

These screw pumps are volumetric self-priming screw pumps suited to handle oils and liquids with a minimum lubricating quality. The design simplicity makes these screw pumps intrinsically reliable and efficient. (read more)

Bearing supported gear pumps and gear motors, ideal where pumps are driven by a drive shaft or driving equipment by pulley and drive belt, for instance agricultural machinery.
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A motor with a bearing support is useful for a fan drive or again if a pulley is fitted for belt drive. Any application that induces side load on the shaft, a bearing support built into the gear p... (read more)

Marzocchi Pompe produce a system of radial sealing at the shaft that can bear enormous internal over-pressures without resulting in damage. This radial sealing is particularly useful in single direction hydraulic gear motors when, in certain conditions of use, high over-pressures will be generated at the motor output. With bi-directional motors, the area adjacent to the seal ring... (read more)

These hydraulic gear pumps have high overall efficiencies, normally above 90%. The product range is available in various mounting formats including SAE and DIN.

A complete range of reversible units and gear motors compliment the range of hydraulic pumps and motors for all types of industrial process, heavy plant, agricultural and commercial equipment.

These hydraulic gear p... (read more)