The function of a retainer is to maintain proper distance between rolling elements. Almost all roller bearings have stamped retainers made of iron-silicon bronze or lead brass. Run-of-the-mill ...
Chiseled for 20-mm diameter batteries, the BK-913 retainer offers a 23% narrower width than comparable designs and weighs 0.8 grams. The retainer has two PC pins and is made of nickel-plated phosphor ...
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