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Resale price maintenance (RPM) or, occasionally, retail price maintenance is the practice whereby a manufacturer and its distributors agree that the distributors will sell the manufacturer's product at certain prices (resale price maintenance), at or above a price floor (minimum resale price maintenance) or at or below a price ceiling (maximum resale price maintenance).
Many practical applications suggest as good practice that the maximum operating speed should not exceed 75% of the critical speed [citation needed]; however, some systems operate above the first critical speed, or supercritically. In such cases, it is important to accelerate the shaft through the first natural frequency quickly so that large ...
The exact RPM is not always needed, a close approximation will work. For instance, a machinist may want to take the value of π {\displaystyle {\pi }} to be 3 if performing calculations by hand. R P M = C u t t i n g S p e e d × 12 π × D i a m e t e r {\displaystyle RPM={CuttingSpeed\times 12 \over \pi \times Diameter}}
DIN 66036 defines one metric horsepower (Pferdestärke, or PS) as the power to raise a mass of 75 kilograms against the Earth's gravitational force over a distance of one metre in one second: [17] 75 kg × 9.80665 m/s 2 × 1 m / 1 s = 75 kgf⋅m/s = 1 PS. This is equivalent to 735.49875 W, or 98.6% of an imperial horsepower.
[1] [2] [3] On July 22, 2015, The Home Depot acquired Interline Brands for $1.6 billion. Interline Brands was rebranded in 2018 as The Home Depot Pro. The former brand names of Interline Brands were renamed to The Home Depot Pro Multifamily, The Home Depot Pro Speciality Trades, and The Home Depot Pro Institutional. [4]
SFM is a combination of diameter and the velocity of the material measured in feet-per-minute as the spindle of a milling machine or lathe. 1 SFM equals 0.00508 surface meter per second (meter per second, or m/s, is the SI unit of speed). The faster the spindle turns, and/or the larger the diameter, the higher the SFM.