Benjamin, Charles H[enry], 1856- [from old catalog] · Cleveland, C. H. Holmes · leaf 86
MACHINE DESIGN 79 … This last bearing may be converted to four pointcontact by making the upper collar of the same shapeas the lower. To guide the balls in two point contactuse is sometimes made of a cage ring, a flat collardrilled with holes just a trifle larger than the balls and disposing themeither in spiralsor in…
Machine design
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