Bearings with Norm

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Welded vs. Bolted Ring Gears

There is often a lively debate early in a program when we are discussing the pros and cons of laser welded ring gears vs. bolted ring gears. Just about every

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Bearing Cap Pinch

Howdy Folks, My apologies, I have been AWOL for a little while. Things can start to get a little sketchy around the PG as peak driving season ramps up. I

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Aluminum Housing Series: Preload Change Due to Bearing Span Change with Temperature.

Previously we discussed how to determine your cup interference fit based on thermal expectations. Then we discussed how the bearing cup contracts and grows with temperature, compared with how much

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Aluminum Housing Series: Cup Distortion after Installation

The next step in our aluminum housing series is to determine where the cup interference is going. If we press a cup with 100µm interference into a solid steel block,

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Aluminum Housing Series: Bearing Cup Fits in AL Housing

The interference fit that cups should have in an aluminum housing seems to be a subject that comes across my desk in regular intervals. Of course, there are numerous reasons

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Treat Your Suppliers Well

I recently had a supplier give me a call to let me know that we had some outdated paperwork floating around that was going to wind up costing us a

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Just How Big Are the Biggest Bearings?

I don’t recall a single bearing class where someone didn’t want to know what the largest bearing ever made was. From my stint as a bearing engineer in heavy industry,

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The All New Power Transmission Engineering Blog!

Happy New Year! I am pleased to announce that I will be your new blog writer for PTE. If we haven’t been introduced, my name is Norm Parker and I