For worm gearboxes, oils are mainly used in combination with splash lubrication. Consistent lubricants, such as greases, are used less frequently and are used, for example, in gearboxes where it is not possible or difficult to seal the housing (Ref. 1). These applications include positioning gears, but also power gears with high sealing requirements, such as in the food industry. Grease lubrication has, in comparison to oil, a negative thermal effect on the worm, resulting in higher mass temperatures (Ref. 2). However, this effect becomes less relevant in the application of positioning gears, so that the advantages of grease lubrication outweigh the disadvantages in these applications.
When Australian steelmaker InfraBuild needed two new circuit breakers to provide backup for its main electric arc furnace, ABB had the solution—its VD4-AF vacuum circuit breaker with an innovative servomotor actuation system that delivers more than five times the operations of a standard breaker, supporting greater reliability and safety as well as lower operational costs.
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According to a recent study by Deloitte, the aerospace and defense industry stands at a pivotal crossroads as it enters the latter half of the decade. Forces that have shaped the sector in recent years—digital transformation, supply chain volatility, talent constraints, and geopolitical events—are converging with new catalysts such as agentic AI, emerging vehicles and the rapid evolution of autonomous systems. On the defense side, budgets are a key focus, with a growing emphasis on enhancing mission readiness. At the same time, defense priorities are shifting to accelerate the fielding of AI-enabled systems and collaborative combat aircraft. “Speed to field” is becoming the unifying metric across portfolios. (deloitte.com)
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Mechanical engineering develops the scientific and mathematical principles behind physical machines, but you can’t help feeling a little real-world magic taking place in the manufacture of components needed for large, heavy industrial applications. Cement production, for example, relies on gigantic equipment to grind raw materials using rotary kilns, ball mills, vertical mills and crushers.
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Bosch Rexroth continues to expand the ctrlX platform with new capabilities and automation enhancements. The control platform ctrlX COREplus is now available with AI functions on all performance levels. In the area of motion and drives, Bosch Rexroth is presenting compact, energy-efficient, and cabinet-free drives from the ctrlX DRIVE portfolio, which cover virtually all performance ranges. These are complemented by the Motion, CNC, and Robotics software ctrlX MOTION, which is ideal solution for automating production machines and systems. PTE recently had a great conversation with Garrett Wagg, product manager, controls at Bosch Rexroth on new developments in mobile robotics.
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Motion + Power Technology (MPT) show brings together the gear and power transmission industries for a unique balance of education, new technologies and networking opportunities. The show takes place October 17-19,2023 in Detroit.
In the highly competitive gear manufacturing industry, Master Power Transmission (MPT) recognized the need for innovation. To achieve this, MPT partnered with Ready Robotics, undertaking a transformative journey into advanced automation through their Automation Readiness Assessment (ARA).
Between trade shows including MINExpo and CES 2025, we’ve been treated to a great deal of new technology in areas like mining, agriculture, construction and heavy industrial components. Liebherr has modified its component portfolio to include digital measurement, electrification and maintenance-free technologies. Liebherr’s component product segment offers advanced solutions for slewing bearings and slew drives that meet the rising demands across a variety of applications and industries. These components are future-ready and play a vital role in making operations much more efficient.
Technical sales personnel use intelligent features to select suitable motor-gearbox combinations and run calculations based on customer-specific operating data. This provides obvious added value for the customer. Service lives, safeties, and expected loads can all be determined in a short time. Maintenance of the underlying database and the use of simulation tools make it possible to quickly and easily perform technical calculations without having to rely on a central calculation department. In less than a minute, the customer is provided with a data sheet which includes reliable statements about the gearbox based on these technical calculations.
The drive system choice is dependent on key motion features of your application. Lead screws offer self-locking capabilities, while ball screws require brakes to prevent back-driving. The choice between them hinges on efficiency, cost, precision, and speed, with the screw drives themselves paired with a linear guide for optimal performance.
Bellows couplings are commonly used in applications requiring precise rotation, high speeds, and dynamic motion transmission. With zero backlash and a high level of torsional stiffness, they offer clear performance advantages in many servo-driven systems.
The Simplicity self-lubricating linear plain bearings are built to last, and they will often out-perform and last longer than a traditional linear ball bearing. Called the “little red bearing” by loyal customers, they have been a popular replacement for failing ball bearings. Simplicity plain bearings will not catastrophically fail.
The difference between a smooth-running drive and constant headaches? The right timing belt and pulley plus a whole lot more. Discover what works, what doesn’t, and put your design skills to the test—engineer your best system yet!
Discover how Regal Rexnord’s Bauer™ PMSM gear motor helped a transportation company streamline inventory, cut energy use, and save $80,000 annually. Learn how this scalable solution delivers financial, operational, and sustainability gains across facilities.
With the goal of building a full lineup of actuators for every joint required in robot construction, Bonsystems has been developing robotic actuators and introducing the BCSA V4 Series. The BCSA Micro Series is a Cycloidal Micro Actuator designed specifically for robotic hands.
Mar 10, 2026
Igus has announced that it is the first supplier to qualify halogen-free chainflex TPE cables for IPA dry cleanroom classes 4 and 5 through the Fraunhofer Institute for Manufacturing Engineering and Automation (IPA). This certification ensures customers in highly automated battery production receive energy supply solutions with a guaranteed service life of up to four years.
The new KISSsoft Release 2026 offers enhanced structured visualization of system behavior, a more powerful REXS interface, and improved journal bearing calculations, this release enables users to design with greater precision and confidence. KISSsoft Release 2026 also expands coverage of manufacturing capabilities, including support for short and long lead hobs, and introduces plastic gear calculations in accordance with GB/T 44846, ensuring compliance with international standards.
Jun 25, 2026 - Jun 29, 2026
The Metal Powder Industries Federation (MPIF) presents the largest global powder metallurgy (PM) and particulate materials event that only happens once every six years in North America. The PM industry will come together where three conferences, the WorldPM2026, AMPM2026 and Tungsten2026, will be sintered into one global event.
Jun 22, 2026 - Jun 25, 2026
May 5, 2026 - May 6, 2026
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Power Transmission Engineering is THE magazine of mechanical components. PTE is written for engineers and maintenance pros who specify, purchase and use gears, gear drives, bearings, motors, couplings, clutches, lubrication, seals and all other types of mechanical power transmission and motion control components.
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