When selecting retaining rings for an application, there are a number of factors that determine the right decision. The first question to ask is what kind of assembly does the application require; is it a housing assembly or shaft assembly? Next, determine the main critical dimensions. These include the housing or shaft diameter, groove diameter, […]
Motion Selection Guides
How to Size and Select Roller Chains: An Engineer’s Guide
Selecting the right roller chains for an application is an involved process. The information given here is meant to serve as a starting point, an orientation to the main points of emphasis in the selection process. There are two basic ways to select a roller chain, starting from two different pieces of information. One method […]
How to Size and Select Rotary Encoders: An Engineer’s Guide
Selecting a rotary encoder for a motion control system depends on a number of factors, chief of which are the accuracy requirements of the application, whether it’s position and/or velocity control. Before deciding which encoder to select, consider the most important factors which include: Positioning accuracy Speed stability Audible noise Power loss Bandwidth, which determines […]
How to size and select belts and pulleys: An Engineer’s Guide
Updated May 2016 || Industrial belt drives consist of rubber belts that wrap around drive pulleys, in turn driven by electric motors. In a typical setup, the belt also wraps around one or more idler pulleys that keep the belt taut and on track. More after the jump. The main reasons that engineers pick drives […]
How to Select a Gearmotor in Four Simple Steps
Updated May 2015. || Consider key design parameters when selecting a gearmotor for a motion control application. Step One: As the motor or gearmotor selection process begins, first gather the relevant technical and commercial requirements. This first step is often overlooked, but it’s a critical component in the design process. The gathered information will then be used […]
How to select a PLC for machine control: An engineer’s guide
Choosing the right controller for a machine can be a difficult and, at times, stressful process. There are constantly new products being released into the marketplace and it can be a challenging task to simply compare two controllers, much less identify the right controller for your application. It can take a knowledgeable engineer in tandem […]
How to Choose a Servo Motor
Correctly sizing motors in a motion control application is more difficult than sizing an AC induction motor because not only must acceleration, deceleration and running torque be taken into account, but also the ability of the servo motor to tightly control the load’s speed, position or torque. This means the peak torque measurements must be […]
How to size and select servo systems in eight easy steps
Updated July 2016 by Lisa Eitel || Servo systems provide amazing levels of speed, accuracy, and flexibility in automated equipment when the correct servo is chosen for the application. Unfortunately, choosing the wrong servo can lead to difficulty in tuning, poor accuracy, or underwhelming performance. With so many different servos to choose from, how do […]
How to select and specify stepper motors: A design engineer’s guide
Updated July 2018 || Stepper motors are a good choice for many motion control applications, if they’re selected properly. Here’s a quick review of some key tips for making the right choice. First, define the motion profile. This includes such parameters as required positioning time and acceleration/deceleration time. Related factors include the required positioning increments […]
How to Size and Select a Transducer for Motion Control
A transducer is any device that converts one form of energy into another. It’s also defined as a device that converts a non-electrical quantity into a proportional electrical quantity. Transducers can be used to sense a wide range of different energy forms such as movement, electrical signals, radiant energy, thermal or magnetic energy etc, and […]
