Question: A gear-reduction unit uses the countershaft depicted in the figure. Find the two bearing reactions. The bearings are to be angular-contact ball bearings, having a

A gear-reduction unit uses the countershaft depicted in the figure. Find the two bearing reactions. The bearings are to be angular-contact ball bearings, having a desired life of 50 kh when used at 300 rev/min. Use 1.2 for the application factor and a reliability goal for the bearing pair of 0.96.

Select the bearings from Table11€“2.

16 14 25 12 240 lbf 20 Gear 3, 24 dia. " Gear 4, 12 dia.

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R096 0980 T12240 cos 20 2706 lbfin F 2706 6 cos 25 498 lbf TR R 16 821 14 210 B 451 C In xyplane ... View full answer

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