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The optimised grease forms a thick oil film between the bearing raceway surface and the rollers to prevent metal-to-metal contact
Smiths Interconnect launches new best-in-class RF Filter solutions in the X, Ku, and Ka Bands. New Planar X Series leverages thin film process technology
Smiths Interconnect, a leading provider of technically differentiated electronic components, subsystems, microwave, optical and radio frequency products announces today the launch of its Planar X Series of Thin Film Bandpass Filters designed for applications in harsh environments. Planar X Series provides system engineers
with a high performance, compact solution for critical RF filtering in X, Ku, and Ka bands. The new Planar X Series leverages thin film process
technology on various substrates which are designed for mission critical applications. The small footprint, light weight and surface mountable configuration allow for high-volume pick and place applications and are ideal for Radar, SATCOM, and Satellite industries. “The Planar X filter family has been qualified for mission critical defence and space
New NSK bearings deliver long
service life for steelmakers Due to harsh environmental conditions, steelmaking equipment requires highly reliable, long-life bearings that resist premature damage. NSK has therefore developed a new high-value-added bearing for the steelmaking industry that improves productivity through stable equipment operation and reduces maintenance costs with its innovative sealing and lubrication technologies. As part of the manufacturing process from crude iron to finished product, steelmaking
relies on several different types of equipment, including: equipment that melts raw pig iron to make molten steel; equipment that adjusts the composition of molten steel and hardens it; and rolling equipment that forms hardened steel into plates or bars. Among these processes, bearings for rolling mills have to withstand particularly harsh operating conditions. In addition to accommodating extreme loads and speeds, bearings for the work rolls
of rolling mills must also resist infiltration by oxide scale and cooling water. Premature damage to poorly specified bearings will result from the flaking or rusting of raceway surfaces, largely because of poor lubrication. However, over-lubricating is not the answer due to cost and environmental concerns. With these thoughts in mind, NSK set about developing a solution which utilises sealing
technology optimised for rolling mill bearings, alongside grease technology that minimises the effects of water intrusion. The outcome is a long-life, four-row tapered roller bearing that is more water-resistant than conventional bearings and delivers optimal performance in steelmaking equipment applications. Notably, the oil seal on the new bearing is extremely compact, while a new processing
method for the cage has increased roller length and diameter, and increased the number of rollers, resulting in a high load capacity design.
NSK Europe Ltd u
www.nskeurope.com Take the effort out of fitting your
linear bearings The innovative THK LMHB linear bearing takes the effort out of assembly, with a straightforward press fit design. Snap rings and stop plates are no longer required, as the nut can simply be pressed into the housing. This facilitates quick and easy assembly, reducing time spent on maintenance and boosting productivity. The LMHB also helps reduce the chance of errors occurring during the fitting process, extending the life of machinery. Another pioneering feature of the THK LMHB linear
bearing is its unique curved metal plates which provide a spring effect. This minimises clearance between the rolling elements and the shaft, facilitating smooth, silent linear motion in a wide range of applications. As the LMHB Conforms to ISO 10285 Series 1, existing users of this bush dimension
standard can now benefit from THK technology and the LMHB’s simple drop in interchangeability.
Acorn Industrial Services Ltd u 01709 789 949 u
linear@acorn-ind.co.uk u
www.acorn-ind.co.uk
56 DESIGN SOLUTIONS SEPTEMBER 2022
NSK bearing developments help to maximise the performance and
energy efficiency of industrial motors The power usage of motors used in machinery is said to make up 40-50% of the world’s electricity consumption, making these industry-essential devices a key energy reduction target. With this thought in mind, the market is seeing a proliferation of industrial motors claiming to offer improved energy efficiency. The latest inverter motors are also contributing to lower power consumption as they adjust their rotational speed according to operating conditions. Furthermore, demand is ramping up for new-generation servo motors, which typically find use in industrial robots as they can rotate forwards and backwards for accurate positioning. These three motor types (high-efficiency, inverter and servo) all rely on one common component to help maximize performance and minimize energy consumption: bearings. Worldwide endeavours to reduce power consumption have led to regulations requiring
motor efficiency improvements. A motor’s energy loss comprises of three factors: iron loss (heat generation from the iron core); copper loss (heat generation from the winding); and mechanical loss (due to bearing rotation, for instance). Although mechanical loss can be as small as 1% of motor power consumption, it accounts for 0.4-0.5% of global electricity use, which means the worldwide impact of any reduction would be significant.
Low-torque bearings for high-efficiency motors NSK has been busy evaluating mechanical loss from bearings using actual high-efficiency motors and real-life operating conditions. The company sought to identify potential reductions in power consumption by developing a test method that allows for the direct evaluation of mechanical loss in bearings. The results from these tests would feed into NSK’s bearing development programme for high-efficiency motors.
NSK u
www.nskeurope.com
applications”, explained Tullio Panarello, VP and General Manager of the Fibre Optics and RF Components Business Unit at Smiths Interconnect. “The qualification plan is based on our legacy space heritage and ensures consistent performance and endurance under harsh environments.”
About Smiths Interconnect u
www.smiths.com.
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