Benjamin, Charles H[enry], 1856- [from old catalog] · Cleveland, C. H. Holmes · leaf 85
and the balls turning on horizontal axes.If the space between the plates is filled with looseballs, as is sometimes done, the rubbing of the ballsagainst each other will cause considerable friction. To guide the balls without rubbing friction threepoint contact is generally used. Fig. 33… … MACHINE DESIGN 79
Machine design
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