This is the critical replacement part for Corning "PC" line of laboratory magnetic stirrers. They require a dry (no grease) stainless steel bearing very hard to find. Stuck rotation from contamination corrosion of motor bearings is the frequent common failure. A few dollars here lets you avoid
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March 11, 2013
I'm working on an indoor outdoor swivel for the speed bag that smaller sized punch training apparatus used in the sport of boxing and general fitness and wanted a dry bearing of high quality and moderate price. This stainless steel bearing more than meets the need for strength and low inertia free spinning performance. This is a well made product.