Quality Electronics Hardware
Precision Ball Bearings, Shielded
Brand new ball bearings in original packaging. Priced per bearing.
Ball bearings provide the lowest friction for rotating shafts. Tight-tolerance hardened steel balls within the bearing roll between the inner and outer "race", inside a half-round groove. This mechanism provides low friction, and long lifetime.
Thease bearings are filled with lubricant, and permanently sealed with a steel disk to keep out dust and debris. This is referred to as "shielded".
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PowerPeg is a system of interchangeable parts for cooling systems in PCBs. PowerPeg thermal connectors solder to the underside of SMT chips through a hole in the PCB. Then choose a heat sink to bolt-on to the connector.