A comparative study of stepper vs. brushless dc motors reveals the pros and cons of both motor types. Charan Bhamra Mechatronics Engineer EZmotion For engineers and designers working on modern-day motion and other industrial applications, it’s vital to understand the advantages and disadvantages of stepper and brushless dc (BLDC) motors. Here we’ll look at a […]
Motors
New updated branch motor control and protection from Rockwell Automation
Rockwell Automation, Inc., announces a complete revision of its Allen-Bradley Branch Motor Control & Protection Solutions of motor control components. The recent overhaul of its motor control components within its Branch Motor Control & Protection Solution was brought on by the need for updating full systems where components are used to turn on and off […]
How to get zero backlash out of gearing?
Gearmotors use gears to reduce speed, which makes more torque available. The kind of gears used in gearmotors have an impact on the available torque, but also on things like noise levels and accuracy. In fact, one of the more common sources of inaccuracy in gearmotors is due to gear backlash. So reducing the amount […]
New Simotics SD200 low-voltage, severe-duty AC motors with 75 to 800 hp output
Siemens announced the immediate availability of the Simotics SD200 severe-duty motor in frame size 440 as its latest offering in the low-voltage Simotics motor family. Providing high productivity and energy-efficient operation in all torque ranges, these new cast-iron NEMA motors are built to power pumps, fans, compressors, hoists, winders, and similar equipment in harsh environments. […]
Where brushless servo motors have the edge
While there are many motor types to choose from, brushless servo motors have some advantages that make them the motor of choice in many applications. Bob Merrill Product Manager Servo motors ABB There are many motor types out there for engineers to choose from, and which is the best selection depends on each individual application. […]
Sizing a dynamic brake resistor
Dynamic brakes in electric motor drives divert rising DC bus voltage seen during load deceleration. Here we explain how to size the resistors that process that voltage. By Lawrence Kren | Contributing writer Dynamic brakes divert rising DC bus voltage to an appropriately sized resistor where that voltage is then dissipated as heat. This process […]
New mini planetary gearmotors for small stepper motors
Applied Motion Products’ new PH Series mini planetary gearmotors are used with small step motors in NEMA 8, 11, and 14 frame sizes. The small design of the gearheads allows them to be paired with small motors and doesn’t adversely affect the outside dimensions of the combined gearmotor. These gearmotors are used in applications where […]
Pertinent operating conditions for ac gearmotors and motors
Nameplate values stipulate the limits at which a motor or gearmotor can safely operate. To operate the motor either over or under the nameplate rated limit can degrade motor performance and safety. Let’s now review some of these restrictions and the consequences of ignoring them. Tim Oliver, V.P. of Engineering • Bodine Electric Co. Operating […]
New flat brushless dc motor features integrated encoder
The new DF45 brushless dc motors from Nanotec are now available with an integrated encoder. The new flat motors have a diameter of only 45 mm and, owing to their extremely compact design, are suitable for applications that require precise positioning in confined spaces. The 2-channel encoder has a resolution of 1,024 CPR and provides […]
Bronze, Silver, and Gold 2022 LEAP winners in motion control announced
The fifth annual LEAP Awards — celebrating leading engineering achievements in product design — was the largest yet. 2022 LEAP categories were divided across the four WTWH Media brands of Design World, Fluid Power World, Fastener Engineering, and EE World. The 14 categories include Additive Manufacturing • Advanced Materials • Connectivity • Embedded Computing • […]
