Back in 1913, in Ann Arbor, MI., Leander J. Hoover founded the Hoover Steel Ball Company. In 1990, Tsubaki Nakashima company of Japan acquired the US ball manufacturing company and is currently the biggest manufacturer and supplier of precision balls in the world. Its first markets were the growing automotive and precision bearing industries. More than a century later, the electric vehicles (EV) market is becoming more and more relevant, though the combustible auto industry continues to grow. Its market for high-quality precision products has extended to medical, aerospace, military defense, and critical applications. After the great age of steel, a new era opened wide spaces for more extreme materials which paved the way for ceramics. 

Eaton’s heavy-duty 4-speed electrified vehicle (EV) transmission was named a 2024 Automotive News PACEpilot Innovation to Watch at an awards ceremony on April 29. The recognition acknowledges post-pilot, pre-commercial innovations in the automotive and future mobility space. 

Norway is the official partner country of Hannover Messe 2024. Under the headline “pioneering the green industrial transition”, Norway will showcase digital technology and sustainable solutions for manufacturing. There will also be a strong focus on clean energy, including renewables, hydrogen, ammonia and CCS.

Siemens Digital Industries Software has announced that Emotors, an independent e-drive manufacturer, has taken advantage of test solutions from the Siemens Xcelerator portfolio of industry software to aid in the development and constant improvement of its e-drive systems for hybrids, plug-ins and full electric vehicles (EVs).

After volume production of the CeTrax lite electric drive for light commercial vehicles started in April 2023, ZF has already produced its first thousand units. The ramp-up in volume production was steeper than planned because demand from the customer ISUZU increased. The drive is used by ISUZU to power the latest generation its light distributor truck, the ISUZU ELF EV. Further volume production is set to start imminently this year.

Spline rumble is characterized by a multiple low shaft order droning noise. It arises in electrified vehicle (EV) powertrains due to excitation at the spline connection between the motor rotor and the transmission input. It is caused by the interactions between manufacturing errors. In this article SMT will be looking at how MASTA can be used to predict rumble in a modern EV gearbox with a three-bearing input assembly layout.

OHLAs provide both overhung radial and axial load support to protect electrified mobile equipment motors from heavy application loads, extending the lifetime of the motor and alleviating the cost of downtime both from maintenance costs and loss of production. OHLAs also provide a contamination barrier to protect the electrified system from harsh environments that may include water, dirt, abrasives, chemicals, and other invasive debris, which are often present in mobile equipment applications. 

SKF has developed a novel solution to an emerging problem in electric vehicle (EV) powertrain design. The SKF Conductive brush ring provides a reliable electrical connection between an EV eAxle rotor shaft and its housing, which increases eAxle lifetime expectations. When used in combination with SKF Hybrid ceramic ball bearings, it helps to even further alleviate parasitic current effects that can lead to premature failure in bearings and other components.

The inaugural North American version of the Lubricant Expo and The Bearing Show took place last week at Huntington Place in Detroit. A vibrant conference/education schedule balanced an informative group of exhibitors discussing component challenges, system upgrades and future trends. Innovation in the automotive, transportation and energy industries is keeping R&D departments busier than ever. Here’s why: 

Siemens AG has signed an agreement to acquire the industrial drive technology (IDT) business of ebm-papst. The business, which employs around 650 people, includes intelligent, integrated mechatronic systems in the protective extra-low voltage range and innovative motion control systems. These systems are used in free-range driverless transport systems. The planned acquisition will complement the Siemens Xcelerator portfolio and strengthen Siemens’ position as a leading solutions provider for flexible production automation.