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Home » Blogs

Blogs

Bearings with Norm

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Ball Bearing Limiting Speeds

August 9, 2022
Norm Parker

Electrification has really brought ball bearings back into focus as the primary bearing in our drive systems. Some boxes have tapers on the slower shafts for stiffness and others are using a ball/cylindrical combo for efficiency. Regardless, we all face the same challenge on the primary shaft in dealing with the potential of 18,000–20,000+ rpm speeds coming out of the motor. Plenty of applications run 20,000 rpm; what makes the automotive motor unique is, in addition to speed, we are driving huge torques, frequent torque reversals and a huge range of temperatures both internally and geographically. Of course, this all needs to be suited for high-volume manufacturing as well. Adding full ceramic balls, a PEEK cage and a high precision classification is a really easy way to run greater than 20,000 rpm all day but is an expensive option. One bearing alone could hurt the cost competitiveness of your gearbox. In the case where a single bearing can change the landscape of your project, it is worth taking a little time to understand exactly what the drivers of our speed limitations are.


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Induced Axial Load

May 30, 2017
No Comments
Every bearing that has a non-zero contact angle will generate an axial load as a radial load is applied. This generated load is referred to by a fe...
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There Must Be 50 Ways to Reduce a Duty Cycle (Part 2)

May 23, 2017
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Welcome to Part 2 of our duty cycle journey. In the first part, we reviewed how to take a duty cycle or one block of a duty cycle and reduce it to ...
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There Must Be 50 Ways to Reduce a Duty Cycle

May 8, 2017
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Man, oh man — 2017 is going to be one for the record books! My wife and I recently had the 3rd and FINAL installment of the Parker clan. A healthy ...
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Avoiding Bearings "Made in Wherever"

February 21, 2017
One Comment
You can always tell when times are good in the automotive market due to the flurry of acquisitions, mergers and divestitures. As we are coming off ...
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Editors Choice

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The Digital Experience with Regal Beloit

February 22, 2021
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Regal Beloit Corporation recently announced it is now putting QR codes on Sealmaster and Browning mounted bearings products and bearing boxes inclu...
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Smart Moves with Bosch Rexroth

January 21, 2021
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Extrusion press hydraulics upgrade uses phased approach to improve results

The extrusion press is one of today’s most valuable and hardwo...
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Fenner Precision Polymers Expands Portfolio with MAV Acquisition

December 10, 2020
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Fenner Precision Polymers, a Michelin Group Company, recently announced the acquisition of MAV S.p.A., an Italian company, located in Altopiano del...
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Bosch Rexroth Celebrates 30 Years of Linear Motion Innovations

December 1, 2020
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Bosch Rexroth began developing linear bushings, shafts, slides, and transfer tables as prototypes in the 1960s. The first two complete linear modul...
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Stainless Steel Powertrains Provide Peace of Mind

November 24, 2020
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Hardly a day passes without a new FDA recall of some food product as the number of Americans falling ill from food contamination infections continu...
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Motor Matters with George Holling

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A Changed World - Challenges and Opportunities

November 18, 2020
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2020 started out like a normal year with some chatter about a virus outbreak in China but then events quickly spread and the world, as we knew it, ...
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Motors without Rare Magnets: What are the Options? (Part Two)

March 13, 2020
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In Part I we explored various motor technologies used today for industrial and traction motor design. Here in Part II we will explore another motor...
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Motors without Rare Magnets: What are the Options? (Part One)

October 24, 2019
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Lower-cost motor technologies exist that can be an attractive alternative to neo-based BL PM motors - and are not subject to unpredictable supp...

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Engineering in the Modern Age

January 14, 2019
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There is a growing social chasm developing in society in general that we will have to address: the value of formal education. When I grew up thi...
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The Gizmo Society

April 19, 2018
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It is hard these days to find any device that is not IoT-compatible or WiFi-connected. I recently had a new well pump installed that requires an iP...
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Revolutions

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CTI Symposium Berlin Reflects Push Toward E-Mobility

August 11, 2022

CTI Symposium Berlin starts with two introductory days dealing with the basics and practice of automotive transmissions, hybrid and electric drives for newcomers and those who want to refresh their knowledge. This is followed by the main program with keynote speeches, panel discussions and technical presentations.


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The Electric Steel Dilemma and Its Impact on Motor Vendors

August 8, 2022
Blake Griffin

Electric steel is used heavily in the manufacturing of electric motors. The material is key to producing the electromagnetic field used to turn the rotor. Without the electromagnetic properties associated with this iron alloy, the performance of electric motors would be substantially compromised. Historically, motors used in commercial and industrial applications have represented a major customer base for electric steel suppliers, and motor vendors have resultingly had little difficultly ensuring prioritized supply lines. However, the share of business held by commercial and industrial electric motor vendors is being threatened by the automotive sector in the wake of electric vehicles.


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Smart Solutions for Bearings, Motors and Drives

August 1, 2022
Matthew Jaster

This exclusive round-up article from PTE examines the latest news and product technology involving smart bearings, motors and drives. 


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Kollmorgen Examines Three Design Considerations that Indicate a Machine Needs a Frameless Motor

July 25, 2022

Engineers often face challenges when incorporating servo motors into a new machine design, such as choosing between a conventional housed motor or a frameless design. Kollmorgen engineers examine the components of a frameless motor and review three key design considerations that would indicate a frameless solution is the best fit for a machine.


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Virtual Machine Reality

Siemens Integrates Automation/Robotics with Digital-Native CNC for Mechatronics Solution
July 15, 2022
Matthew Jaster

With Sinumerik One, the first digital native CNC for machine tools, Siemens works with software to create the machine controller and the associated Digital Twin from one engineering system seamlessly. The latest iteration of the CNC system was on display recently at Automate 2022 in Detroit where machine tool builders and CNC users were able to witness the product, production, and performance benefits on the show floor.  


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