STAND 101 exceptional mechanical & fluid power expertise jbj Techniques Limited | | 15 October 2025 NAEC • Stoneleigh Park • Warwickshire | Unlock Innovation & Drive Excellence in Machine Building & Factory Automation EXCEPTIONAL MECHANICAL & FLUID POWER EXPERTISE www.jbj.co.uk STAND 101
01737 767493 info@jbj.co.uk www.jbj.co.uk exceptional mechanical & fluid power expertise EXCEPTIONAL MECHANICAL & FLUID POWER EXPERTISE www.jbj.co.uk Predictive maintenance, not preventative! Our technical sales engineers look forward to meeting you. They’ll be glad to discuss your latest machinery build, upgrade, or repair and are always up for a chat about technical challenges, a bit of banter, or even the weather. Don’t leave them standing alone, they enjoy good company! STAND 101 STAND 101 The low noise, high efficiency helical gear pump. For low pressure fluid transfer. Ideal for low-pressure, low viscosity lubrication applications such as fire-resistant fluids. REDUCES NOISE LEVEL BY AN AVERAGE OF 15 dBA. Gear Units Electromagnetic Brakes & Clutches ® ELIKA Helical Gear Pumps Non-Backlash Couplings Cooling
® ELIKA Helical Gear Pumps 4th September 2025 also available via LinkedIn Introduction Noise, vibration, and inefficiency remain major challenges in hydraulic system design. Conventional external gear pumps, while robust, often produce excessive acoustic emissions, pressure pulsations, and energy losses that can shorten equipment life, reduce operator comfort, and increase operating costs. The ELIKA® helical gear pump, developed by Marzocchi and distributed by JBJ Techniques, represents a step-change in hydraulic pump technology. By combining a patented helical gear tooth profile with advanced compensation systems, ELIKA® offers unprecedented noise reduction, efficiency, and reliability, delivering a high-performance solution across industries as diverse as power generation, oil & gas, renewables, marine, motorsport, food & beverage, transport, and environmental/materials handling. The Challenge Hydraulic systems are critical to modern industry, but they are not without drawbacks: » Excessive noise leads to operator discomfort, regulatory non-compliance, and mechanical wear. » Pressure ripple and vibration cause instability, cavitation, and reduced system accuracy. » Internal leakage undermines volumetric efficiency, particularly at low speeds and high pressures. » Energy inefficiency drives up running costs and carbon footprint. These challenges demand an engineered solution capable of combining robust hydraulic performance with quiet, efficient operation. The ELIKA® Solution ELIKA® addresses these issues head-on: » Noise Reduction: Up to 15 to 20 dBA lower than conventional gear pumps. » High Pressure Capability: Continuous working pressures up to 300 bar, peaks up to 310 bar. » Broad Displacement Range: From 2.1 cm³/rev to nearly 200 cm³/rev across four series (ELIKA1P, ELIKA2, ELIKA3, ELIKA4). » Efficiency: Volumetric efficiency >90% even under low-speed/high-pressure duty cycles. » Flexibility: Compatible with a wide range of pump families (for example ALP2/GHP2) and configurable in tandem/multiple units. » Reliability: Optimized axial compensation reduces internal leakage and extends service life. Technical Q&A Q1: What sets ELIKA® apart from traditional external gear pumps? A: ELIKA® employs a helical gear tooth profile that ensures continuous engagement, lowering pressure ripple and vibration. Its patented axial compensation system minimizes internal leakage, resulting in higher volumetric efficiency and longer life compared to straight-tooth gear pumps. Q2: How does ELIKA® achieve significant noise reduction? A: By spreading the load across the helical tooth surface, ELIKA® reduces vibration and high-frequency excitation at the source. This translates into noise reductions of up to 20 dBA, a critical advantage in industries such as marine, transport, and food & beverage, where noise control is both a safety and comfort factor. Something to discuss and learn about on stand 101 @ Machine Building Live on 15 October 2025
Q3: What are the pressure and speed capabilities of the ELIKA® series? A: The pumps operate at continuous pressures up to 300 bar (310 bar peak) and maintain efficiency across wide speed ranges, making them suitable for high-demand environments such as offshore oil rigs, wind turbine yaw control, or motorsport actuation systems. Q4: How does the pump maintain efficiency under varying operating conditions? A: ELIKA® incorporates a patented dynamic compensation system that balances axial forces and reduces leakage. As a result, the pump delivers >90% volumetric efficiency even at low speeds, conserving energy and ensuring reliable operation in renewables, power generation, and environmental handling equipment. Q5: What displacement and flow options are available? A: » ELIKA1P: 2.1 to 8.1 cm³/rev. » ELIKA2: 7 to 35 cm³/rev. » ELIKA3: 20.4 to 87.1 cm³/rev. » ELIKA4: 86.5 to 199.8 cm³/rev. This range makes ELIKA® equally suitable for precision dosing in food processing or heavy-duty lifting in marine and materials handling. Q6: Can ELIKA® be integrated into multi-pump systems? A: Yes. ELIKA® is compatible with a wide range of gear pump families (for example ALP2/GHP2) and can be configured in tandem or multiple combinations, with both clockwise and counterclockwise rotation available. This allows system designers to create complex hydraulic circuits for applications such as power generation skids, offshore platforms, or mobile construction machinery. Q7: What makes ELIKA® suitable for noise-sensitive or precision-critical applications? A: The low-pressure ripple and reduced acoustic signature improve system stability, protect sensitive actuators, and reduce cavitation risks. This makes ELIKA® ideal for motorsport, medical, renewable energy, and food processing, where precision and quiet operation are essential. Q8: How does ELIKA® contribute to energy savings and sustainability? A: High efficiency across the entire operating range results in reduced energy consumption, lower fluid temperatures, and extended service intervals. These benefits directly support sustainability goals in renewables, transport, and environmentally sensitive industries. Q9: What industries benefit most from ELIKA® technology? A: » Power Generation: Reliable hydraulics for turbines, cooling, and auxiliary drives. » Oil & Gas: High-pressure reliability for offshore and subsea systems. » Renewables: Silent, efficient hydraulics for wind, solar tracking, and hydro. » Marine: Comfort and compliance through low-noise operation. » Motorsport: High-speed, compact pumps for precise actuation. » Food & Beverage: Quiet, hygienic dosing and processing applications. » Transport: Low-noise auxiliaries for EVs and hybrid systems. » Environmental & Materials Handling: Efficient, sustainable lifting and recycling systems. ® Q10: What makes ELIKA a future-ready solution? A: With its broad displacement range, high-pressure rating, energy-efficient design, and compatibility with multiple pump families, ® ELIKA is a versatile platform that supports both industrial and mobile hydraulic applications, making it a truly future-ready solution for the next generation of hydraulic systems. Conclusion ® ELIKA represents a breakthrough in hydraulic pump technology, offering unmatched noise reduction, efficiency, and versatility. Whether powering offshore oil rigs, enabling silent operation in electric vehicles, or improving energy efficiency in renewable energy systems, ELIKA® delivers a proven solution for industries seeking to optimize performance while meeting modern demands for sustainability, safety, and operator comfort. ® ELIKA , Zero to 160 mph in 10 Seconds! A Rolls Royce 1978 Viper 535 Jet Engine, a VW and an after burner: https://www.jbj.co.uk/marzocchi/0-to-160-mph-in-10-seconds Something to discuss and learn about on stand 101 @ Machine Building Live on 15 October 2025
® The solution: the Elika helical gear pump Excessive noise, pulsation and inefficiency affecting your machinery? 01737 767493 info@jbj.co.uk www.jbj.co.uk exceptional mechanical & fluid power expertise Something to discuss and learn about on stand 101 @ Machine Building Live on 15 October 2025
Windup and Backlash 16th September 2025 also available via LinkedIn Introduction The functional requirement to interconnect rotating shafts across a wide range of machinery has driven the development of an equally broad spectrum of flexible coupling designs. At the lower end, this includes economical, lightweight couplings suited for shaft diameters as small as 4 to 5 mm. At the upper end are high-capacity, multi-element couplings engineered for heavy-duty applications with shaft diameters in the 150 to 500 mm range. Across this spectrum, the unifying design objective is the ability to accommodate angular, parallel, and axial misalignments while simultaneously satisfying application-specific demands for torsional rigidity, permissible backlash, and dynamic performance. Shaft coupling windup and backlash are fundamentally different types of mechanical error, although both can cause inaccuracies in a rotational system. They are related in that they both cause lost motion, but they arise from different physical phenomena. Key differences between Windup and Backlash summarized Something to discuss and learn about on stand 101 @ Machine Building Live on 15 October 2025 Feature Shaft Coupling Windup Backlash Physical Origin Elastic deformation (twisting) of a flexible Clearance or mechanical play between mating parts. coupling material under load. Motion A predictable, proportional twisting that stores Uncontrolled "free play" or lost motion that is not energy and unwinds when the load is removed. proportional to the load. Repeatability Highly repeatable and predictable under a Not inherently repeatable and can vary with wear. given torque load. Torque Effect Occurs under load and is related to the Occurs during a reversal of direction and is not directly amount of torque applied. related to the torque applied. Impact on System Causes temporary positional error under load, Causes immediate lost motion and positioning but can be managed. inaccuracy during reversal, and can create impact and wear. Advantages of Couplings that Prevent Drive Windup Couplings that prevent drive windup offer superior precision, repeatability, and system stability by eliminating unwanted rotational deflection between the driving and driven shafts. This prevention is critical for high-performance applications where any play or angular lag can cause significant errors or system damage. What is drive windup? Drive windup, also known as torsional windup, occurs when a torque load causes a coupling to twist elastically like a spring. This causes a difference in the angular position between the motor and the load. While the coupling may return to its original position when the load is removed, this elastic deformation is unacceptable in many motion control applications. Advantages of couplings that prevent windup. Enhanced precision and positioning accuracy. » Ensures exact motion: By eliminating the "give" of torsional windup, these couplings guarantee that the driven shaft's rotation perfectly matches the driving shaft's rotation. » Improves repeatability: They ensure that a system will return to the exact same position every time, which is essential for robotics, CNC machines, and automated inspection systems, for example. Increased system stability and performance » Faster settling times: In applications involving rapid acceleration and deceleration, windup causes the system to oscillate before settling. Couplings with high torsional stiffness prevent this by ensuring a more immediate and stable response. » Reduces overshoot: Torsional windup can cause a system to overshoot its target, which can be detrimental in sensitive applications. Couplings that prevent windup provide a more predictable and controlled movement.
Prolonged service life and reliability » Reduces wear and stress: The elastic twisting of windup puts stress on the coupling and connected components like bearings and seals. By maintaining a more rigid connection, anti-windup couplings reduce this stress and extend the lifespan of your equipment. » Minimizes backlash: Couplings that prevent windup are also designed to be backlash-free, meaning there is no lost motion or play when the direction of rotation is reversed. This prevents wear and protects against cumulative positioning errors. Better for high-tech and dynamic applications » Ideal for servo systems: High-gain servo systems are particularly susceptible to the performance degradation caused by windup. Zerobacklash, anti-windup couplings are a necessity for these systems to achieve their intended accuracy and responsiveness. » Essential for high-speed use: In applications with high rotational speeds, even small amounts of windup can cause significant instability and vibration. Couplings with high torsional stiffness maintain a more balanced and stable drive, even at high RPMs. Common couplings that prevent windup Several types of couplings are designed to minimize or eliminate drive windup by maximizing torsional rigidity: » Beam and helical couplings: These are machined from a single piece of material, and the cuts provide flexibility to accommodate misalignment while maintaining high torsional stiffness. » Bellows couplings: Featuring a thin, flexible, metallic corrugated section, these couplings offer high torsional stiffness and precise torque transmission. » Disc couplings: These use one or more flexible metal discs that allow for misalignment while transmitting torque with high torsional rigidity. » Oldham couplings: Using a central disc between two hubs, these couplings transmit torque with zero backlash and are designed for high precision. The Advantages of Backlash Free Couplings Backlash is the unwanted movement between coupling components which can compromise the performance of systems requiring exact motion control. Zero backlash couplings such as the Flender Bipex-S and the Trasco-ES spider couplings eliminate this issue by ensuring that torque is transmitted immediately and directly without any lag. This is achieved using an elastomeric ring available in various hardness levels, which acts as a buffer while maintaining rigidity under load. Improved precision and accuracy Exact positioning: By eliminating the lost motion inherent in couplings with backlash, these devices ensure that when a motor turns a specific amount, the driven shaft turns precisely the same amount. This is vital for accurate and repeatable positioning, especially in robotics, CNC machinery, for example. No cumulative error: In systems with frequent starts, stops, and reversals, backlash can cause small errors to accumulate over time. Backlashfree couplings prevent these cumulative errors, ensuring consistent accuracy throughout operation. Enhanced system performance and stability Greater repeatability: The consistent, one-to-one transmission of motion enables predictable performance, which is crucial for manufacturing and inspection systems that require repeatable, reliable results. Better motion control: Backlash-free couplings provide high torsional stiffness, meaning they do not twist under high torque loads. This results in a faster, more responsive system, which is essential for modern servo-driven applications and other dynamic systems. Reduced vibration and shock: Certain backlash-free couplings, particularly elastomeric types, are designed to dampen vibrations and absorb mechanical shock loads. This reduces noise and extends the life of sensitive system components, such as bearings and actuators. Increased longevity and reliability Longer component life: By eliminating impact loads caused by "play” during changes in direction, backlash-free couplings reduce wear and tear on other mechanical components. Reduced maintenance: Many all-steel disc-pack couplings are wear-free and maintenance-free, offering a long service life when properly installed.
Wider application versatility Accommodation of misalignment: Many backlash-free couplings are also flexible, accommodating axial, radial, and angular shaft misalignment. Different types, such as Oldham or beam couplings, are optimized for different types of misalignment, allowing engineers to select the perfect fit for their application. Electrical isolation: Elastomeric spiders in certain couplings can electrically isolate the two connected hubs, preventing the transfer of leakage currents that could damage sensitive electronic equipment. High-speed operation: Many types, especially disc and bellows couplings, are balanced for use in high-speed applications without causing unwanted vibration. Conclusion Windup and backlash represent two distinct but equally important challenges in rotational drive systems. While windup arises from elastic deformation under torque and is generally predictable, backlash stems from clearance between mating components and often leads to inconsistent, cumulative errors. Both phenomena reduce precision, stability, and efficiency, especially in high-performance applications such as robotics, CNC machining, and servo-driven systems for instance. Modern coupling technologies, particularly zero-backlash and high-torsional-stiffness designs offer effective solutions by minimizing lost motion, improving repeatability, and extending system lifespan. Selecting the right coupling depends on balancing torsional rigidity, misalignment accommodation, and application-specific performance requirements. Ultimately, understanding and mitigating windup and backlash is critical to achieving reliable motion control, ensuring system accuracy, and optimizing long-term operational performance. Speak with jbj Techniques, stand 101, MachineBuilding.Live 2025 about your power transmission requirements. BACKLASH Backlash is the clearance or gap between the trailing or non-driving surfaces of the coupling jaws and flexible element, illustrated in red on the above diagram. When used in reversing or heavy cyclic applications where the coupling is required to rotate in both directions the application must be considered with the type of use, number of starts per hour considered and an appropriate service factor applied to prevent premature failure of the coupling element. Standard spider 'legs' are curved in two directions. NON-BACKLASH The coupling element and claw profile are designed such that the element is compressed when the coupling is assembled in order to remove backlash, typical applications are for indexing or positioning drives such as lead screws or encoders where a high degree of accuracy is required. The pre-compression or preload of the element whilst providing greater accuracy also increases the dynamic torsional stiffness from 25% to 75% over the standard element at 50% of it's nominal torque rating, (depending on coupling size), thus maintaining accuracy even after extended periods of use. Non-backlash spider 'legs' are curved radially and parallel axially. BACKLASH NON-BACKLASH
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Something to discuss and learn about on stand 101 @ Machine Building Live on 15 October 2025 Further updates due for release
Something to discuss and learn about on stand 101 @ Machine Building Live on 15 October 2025
Getting the most out of your machinery often depends on close integration between all components. An organisation that manufactures and integrates all the diverse components of a drivetrain provides the experience to help you select the best component combination for your application. jbj Techniques’ in-house design team and manufacturing facility provide tailored solutions for your applications at competitive prices with quick delivery. The following examples are a simplistic view of how jbj Techniques assists customers. Hydraulic Adaptors 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 i.e. gear boxes, generators, water or vacuum pumps etc. An additional range of engine front PTO adaptors, which provide additional connection between the engine pulley and the driven part are also available. The kit comprises of a and flexible bellhousing drive that are fully machined to suit the coupling driving and driven components. These can be to suit either shaft to shaft, flange (flywheel) to shaft or even flange to flange connections. Getting the most out of your equipment will demand close integration between all components. In specifying jbj Techniques as your preferred supplier, you will have selected a company with the experience to specify, manufacture and integrate all of the diverse components that will ensure the best component combination for your application. jbj's in house design team and manufacturing facility provide tailored solutions for your applications at competitive pricing and on-time deliveries. Pump shaft alignment is key to preventing unnecessary wear and damage to the pump shaft seal and bearing. Improper alignment may lead to premature pump failure. Also to be considered are unwanted torsional resonant frequencies in the system which can quickly cause damage to components in the drivetrain and reduce system life and performance. Improper pump installation can lead to premature failure, increased maintenance costs and reduced production levels of final product. jbj Techniques can advise on the correct installation of into Industrial / hydraulic pumps mobile / marine / machine tool / agricultural / offshore industries and can specify complete driveline systems from their extensive range of components which are available from stock or manufactured to order, albeit simple or complex, standard or bespoke. Electric Motor – Hydraulic Pump Adaptors (safe area) jbj Techniques Limited offer the most comprehensive range of in Europe. bellhousings 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' flange fitments. With fully machined , torsionally flexible couplings or available, jbj ensure torsionally rigid couplings the most suitable combination is selected for the application in hand. As an example spider couplings are available in various materials including aluminium, grey cast iron, nodular iron, steel and stainless steels and can be finish machined with parallel, taper or splined bores to DIN, SAE, ANSI or ISO standards. Bellhousings can be manufactured in aluminium or cast iron material as standard, however, units can be produced in a variety of exotic materials on request. The aluminium product range is produced in either monoblock or composite formats giving great flexibility in design and allows for early delivery time, often with same or next day delivery possibilities. For applications where low noise levels are a quality products for mechanical & fluid power #DriveLineHarmony www.jbj.co.uk an excellence in engineering
ensuring a continuing high quality service in which customers can have complete confidence. “ “ requirement then a complete range of antivibration and noise reduction components add to the range. Electric motor – Hydraulic Pump Adaptors (hazardous area) Designed to meet the exacting safety standards of the offshore and chemical process industries, jbj Techniques produce certificated to adaptor kits 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 can be produced in steel, stainless steel or alternative exotic materials on customer request. Couplings supplied for these applications are the jbj Techniques 'JXL' pin and bush range which provide an anti-static and flameproof drive which meet zone 1 area requirements, conforming to all of the above standards. Also available are spider and gear couplings which are certified to zone 2 standards. (Contact jbj Techniques for details). An important development of equipment for use within hazardous areas is the wet mount series of bellhousings. Commissioned to research and develop a product that would control the high temperature generated by a piston pump shaft seal when working within cycling applications. A little considered issue is the frictional heat generated at the shaft seal when the application requires the pump to cycle between different pressures causing the seal temperature to increase. This process will often take the seal temperature out and above the levels required by the relevant ATEX standards requirement. This specially designed assembly allows a pumped cooling flow to be passed over the seal face and through an auxiliary cooler, this in turn reduces the seal face temperature which can be maintained at an acceptable level. With a vast array of components to select from, jbj are well placed to provide all required components to support the required cooling system. Diesel Engine – Hydraulic Pump Adaptors A complete range of bellhousing and couplings exist for the connection of a diesel engine flywheel to a specified driven component, be it an oil hydraulic pump, water pump, generator or similar device. With the bellhousing available in various materials to suit all application areas. With a standard range to connect Diesel engines with SAE dimensions from SAE '6' to SAE '0' jbj are well placed to satisfy the majority of customer requirements. Couplings to complete the assembly are available in either torsionally flexible or torsionally rigid design ad can be supplied to suit SAE flywheel dimensions from SAE 6.5” to SAE 18”. For hydraulic pumps to be mounted to engines that do not conform to SAE dimensions, we offer a full range of assembly parts, some of which (but not all) are shown here » for diesel engines All bellhousings within this range can be finished machined to accept any, piston, vane or gear pump interfaces requested by customer. As with the electric motor range of product jbj offer complete solutions for ATEX environments, using our well proven 'JXL' coupling range which has standard design to connect to the engine flywheel. Directive 2014/34/EU II2GD-IM2-TX -50°C ≤ Service Temp ≤ +105°C. Harmonised Standards: BS EN 1127:1 BS EN 13463:1 BS EN 13463:5 BS EN 50303. Petrol Engine – Hydraulic Pump Adaptors Petrol engine adaptors have been developed for use with industrial petrol engines. Design exists to suit Honda, Briggs and Stratton, Kawasaki, Kubota, Hatz, Mag, Robin, Suzuki, Winsconsin, to name but a few, all adaptors can be finished to accept most hydraulic pumps. Adaptors to suit engine crankshaft drives and for vertical mounting are available on request. #DriveLineHarmony www.jbj.co.ukl to Large Combinations Small Individual Components
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registered in England No: 1185469 jbj Techniques Limited is ISO certificated, committed to international coordination & unification of industrial standards. A range of products ATEX certificated to directive 94/9/EC requirements set by James Harris, jbj Techniques Limited jbj Techniques Limited 28 Trowers Way Holmethorpe Industrial Estate Redhill Surrey RH1 2LW. UNITED KINGDOM 01737 767493 info@jbj.co.uk www.jbj.co.uk quality products for mechanical & fluid power
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