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  • Aug12

    Fractional Horsepower Motor Equations Quick Reference

    Here’s a quick reference  for common fractional horsepower motor related equations.   >>>Need assistance choosing a motor or gearmotor for your application? Check out this short video or contact one of our Regional Account Managers today!

  • Jul29

    Fractional HP Motor Quick Reference Guide: Shaft Inertia

    Need assistance with shaft inertia? We’ve created this quick reference guide just for you. The inertia of solid steel shafting per inch of shaft length is given in the table below. To calculate for hollow shafts, take the difference between the inertia values of O.D. and I.D. as the value per inch. For shafts of […]

  • Jul17

    Knowing Your Teeth: Gear Terminology

    Have you ever looked at a gear drawing and been overwhelmed by all the different specifications, wondering what it all means?  This blog will list and explain several common gear terms. Number of Teeth – the quantity of teeth on the gear. This term becomes slightly more complicated if a sector gear is specified, in […]

  • Jul01

    Quick Reference Guide: Fractional HP Motor Inertia Equation

    Here’s a quick reference guide to the different inertia equations engineers use in relation to motors and gearmotors.                                                     >>> Need assistance choosing the right motor for your applications?  Watch this […]

  • Jun17

    Safety Standards for Fractional HP Motors: UL, CSA, & CE

    Groschopp’s standard product line of motors are designed to conform to a number of different safety standards, including UL, CUL and CE. UL Certification The UL and CUL marking on Groschopp motors means that the motor has been independently tested by UL and that it conforms to the relevant UL safety standards.  For the United […]

  • Jun03

    What Impacts Speed Variation On Motors and Why Isn’t It Exact?

    To answer these questions we’ll look at the main motor types: AC Induction, Permanent Magnet (PM) DC (Brushed and Brushless) and Universal motors to discuss why when an ideal speed verse torque curve is plotted does the plot change from one motor to the next. (Note: All these motor types naturally experience drop in speed […]

  • May20

    DC Motor Selection: When Multiple Motors Meet Your Specs, How Do You Choose?

    When talking with a customer, there are three specs we like to know first: speed, torque and voltage.  This is a good starting point for us, as we decide what motor best suits an application.  Once we have those details, we can help the customer find either a catalog or custom motor, to suit their […]

  • May06

    Quality Assurance Glossary

    Each industry and manufacturer has specific quality assurance terms and techniques.  We created this quick reference glossary to define quality assurance terms & acronyms specific to Groschopp and the motor/gearmotor industry. For more information on these terms or our products, contact us. Term Definition 6S Used for improving organization of the workplace, the name comes […]

  • Apr22

    Gearmotor Selection Consideration: Reducer Housing Materials

    Shafts, bearings, seals, gears, oil/grease: all essential components to the successful operation of a fractional horsepower gearmotor.  While these are considered the “working components” of a reducer, one vital part remains that has the duty of holding them all together: the reducer housing.  Focus should be given the reducer housing design, so the best material […]

  • Apr01

    Understanding Continuous Speed in DC Motor Applications

    Brushed and Brushless DC motors have two traits that make them easy to control for several applications.  The first is the relationship between voltage and speed, and the second is the relationship between current and torque.  Both relationships are separate from each other but below you can see how they are used together to provide […]