Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 1110
-shafts. It is also apparent that the number of bearings and thespeed of the shaft have but little effect on the friction losses. $31 $141 33 130 37 119 41 113 41 109 48 111 46 104 53 106 60 111 54 102 62 108 70 117 100 142 BELTS, SHAFTS AND MOTOR DRIVES 1087 Liquid grease costing 10 cts. per lb.… … 157 R.P. M. 314 100 Speed.Ft.perMln, 200 470300 Fig. 5. Power consumed by friction of bearings with differentloads and speeds. Temperature 77 degs. F. been plotted to show the reduction of power consumed by ballbearings over ordinary bearings of the sleeve type. The datafrom which the curves were…
