Machine Design Pt. 2
Machine Design Pt. 2
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In our eReader you can find the full English version of the book. Read Machine Design Pt. 2 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Machine Design Pt. 2
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per sq. inch.
4 .071 Machinery- oil 6....:....
.1275 .07 -035 and graphite.
1 .147 .15 .15 .156 .16 .157 .13 1775 .132 .15 .14 .18 .1675 .127 .117 .12 .14 .1325 Screw 5 Nut 7 /i = .19 Screw 2 Nut 9 M = .11 2 Pressure 8000 8 lbs. per sq. inch.
Machinery-oil.
4 .127 .155 6 SCREWS FOR POWJCR TRANSMISSION. 223 The coefficient of friction was low enough, in some cases, to allow the screw to " overhaul "; i.e., a pressure against the screw, parallel to its axis, caused it to rotate and pass through t...he nut.
Following out the fairly well established fact that, in oil-lubri- cated journals, the coefficient of friction decreases rapidly as the velocity of rubbing increases from slightly above zero to 10 or 100 feet per minute, according to whether the pressure is high or low, it would seem that lower values of the coefficients than given in the table might be found in screws running at the higher speeds that are frequently used for power transmissioQ.
71. Problem. — Design a screw to lift 7 tons = 14000 pounds; end thrust of screw to be taken by collar-bearing; screw must not overhaul; driving gear attached to screw to be 18 inches in diameter.
What to read after Machine Design Pt. 2?
You can find similar books in the "Read Also" column, or choose other free books by Forrest Robert Jones to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
per sq. inch.
4 .071 Machinery- oil 6....:....
.1275 .07 -035 and graphite.
1 .147 .15 .15 .156 .16 .157 .13 1775 .132 .15 .14 .18 .1675 .127 .117 .12 .14 .1325 Screw 5 Nut 7 /i = .19 Screw 2 Nut 9 M = .11 2 Pressure 8000 8 lbs. per sq. inch.
Machinery-oil.
4 .127 .155 6 SCREWS FOR POWJCR TRANSMISSION. 223 The coefficient of friction was low enough, in some cases, to allow the screw to " overhaul "; i.e., a pressure against the screw, parallel to its axis, caused it to rotate and pass through t...he nut.
Following out the fairly well established fact that, in oil-lubri- cated journals, the coefficient of friction decreases rapidly as the velocity of rubbing increases from slightly above zero to 10 or 100 feet per minute, according to whether the pressure is high or low, it would seem that lower values of the coefficients than given in the table might be found in screws running at the higher speeds that are frequently used for power transmissioQ.
71. Problem. — Design a screw to lift 7 tons = 14000 pounds; end thrust of screw to be taken by collar-bearing; screw must not overhaul; driving gear attached to screw to be 18 inches in diameter.
What to read after Machine Design Pt. 2?
You can find similar books in the "Read Also" column, or choose other free books by Forrest Robert Jones to read onlineMoreLess
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