Conveyors are extremely versatile systems used for delivering bulk or discrete materials through processing operations or along assembly lines. One of the attributes that makes them so versatile is their ability to be configured in almost any layout imaginable, with curves, inclines or declines, and 90° or 180° turns to form complex travel paths. Another […]
What is an equivalent circuit and how is it used?
When analyzing electrical circuits — including those for AC induction motors and DC motors — if the circuit contains two or more of the same passive elements (such as resistors) and is wired exclusively in series or exclusively in parallel, the circuit can be drawn with a simpler representation that contains the voltage source and a […]
What is a tuned mass damper and how is it used in motion control?
Vibrations in machinery can lead to a premature wear of components, poor quality machine output (parts out of spec, unacceptable finishes), and even damage to the product or failure of the machine. This is why most industrial equipment employs some method of vibration mitigation to reduce or prevent vibrations that could be detrimental to the […]
What is an arbor and how can it reduce machine tool vibration?
On a typical machine tool, the tool that performs the machining operation (cutting, milling, or boring, for example) is attached to a rotating spindle that drives the tool. But on machines that require long machining lengths, such as milling and boring, the tool is mounted to an arbor. The arbor is driven by the spindle […]
What are strain energy and resilience in the context of compression (wave) springs?
When a compressive or tensile load is applied to a spring (or any elastic material), the load does work on the spring, causing the spring to undergo a change in shape (extension or compression). This change in shape creates a type of potential energy — referred to as strain energy — in the material. Typical […]
Timing belt conveyors: benefits and uses
Industrial conveyors span a wide range of designs and configurations to suit specific purposes — from positioning delicate optical components for inspection to delivering automotive parts through an assembly line. When designing a conveyor, one of the first considerations is the conveying media to be used, which depends on the size, shape, and weight of the […]
Motion system design: Can a servo-driven machine be too stiff?
When we think of stiffness, we often think of mechanical stiffness — the ability of a part or system to resist deflection. But in servo-driven motion systems, stiffness can also refer to how the system is tuned — that is, how the gains in the servo controller are set and, correspondingly, how the motor responds […]
How to avoid wave spring fatigue in dynamic applications
Wave springs are gaining acceptance in motion applications, thanks to their ability to provide similar force and deflection characteristics to traditional coil springs, but with significantly reduced working height. Although wave springs can be used in static applications — such as preloading a bearing or mechanical seal — many applications require dynamic movement — for example, […]
What are some common wave spring material and finish options?
There are four key criteria for sizing and selecting a wave spring: load, working height, physical design requirements (bore diameter, ID, OD), and material. In many cases, manufacturers supply custom wave springs in “exotic” materials or with special finishes to meet unique application demands, including difficult environments or corrosion resistance. And in some cases, appearance also […]
How are industrial shock absorbers different from other damping systems?
Shock loads are common in industrial equipment — both as a normal result of the application and as unforeseen loads that occur when there’s a variance in the operation or process. Whether incorporated into the initial design or added after implementation, industrial shock absorbers are often the best choice for mitigating the forces that result […]
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