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More than a decade of intensive research and development has resulted in two new technologies that, when used in combination, expand the performance of rolling element bearings well beyond previous limits.
All major manufacturers of 3-phase
AC induction motors offer "inverter-duty" or "inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings--their most vulnerable parts--are too often ignored.
In most cases, industrial power transmission calls for flexible rather than rigid couplings in order to forgive minor shaft misalignment. For that reason, this article will focus solely on the selection of flexible couplings.
Finite Element Analysis (FEA) software can be used for a variety of mechanical engineering tasks, including injection
molding simulation of plastic parts, analysis of aerospace components, impact and crash analysis of automobiles and the electromagnetic analysis of motors, actuators, transformers and sensors.
In the past decade, electrohydraulic braking systems--including ABS and traction control--have grown increasingly popular, due largely to the vehicle design flexibility and performance advantages they offer. The industry has seen several other instances of intelligent machine controls, unrelated to braking, over the years as well. But what all of these technologies have typically had in common is that they’ve existed
as standalone, point-to-point functions that have not been integrated together. The present and future of braking is all
about taking the next logical step--getting fully connected and finding ways to embed intelligence throughout a machine.
Defined in rudimentary terms, an electric motor is a device that uses electricity to create mechanical force. But in 1834, when our story takes place, most people would have trouble
understanding the ramifications. That was the year that one of the earliest DC electric motors was invented—by a blacksmith.
Seal design engineers and end users are continually seeking improved sealing
systems and materials. This paper describes the potential of a new thermoplastic polyurethane (TPU) material to deliver improvements in pressure, speed and temperature capability, which are presented as comparisons to proven industry
standard materials. Performance is demonstrated by virtue of test bench
results of seals made from MDI-, PPDI- and NDI-based materials.