We assume that the shape of the airfoil is uncertain; the top and the bottom of the airfoil might have shifted up or down due to manufacturing tolerances.
32.
However, the metal pins used instead of pallets have much higher friction than jewelled pallets, and combined with the looser manufacturing tolerances this made pin pallet timepieces less accurate.
33.
A few engines use sleeve valves such as the 14-cylinder Bristol Hercules and the 18-cylinder Bristol Centaurus, which are quieter and smoother running but require much tighter manufacturing tolerances.
34.
Valves of this type using a cylinder rather than a cone are sometimes encountered, but using a cone allows a tight fit to be made even with moderate manufacturing tolerances.
35.
This function importantly minimizes the axial and radial " play " of the gliding bearing due to manufacturing tolerances as well as due to wear of the gliding pads during operation.
36.
This has been attributed to potential manufacturing tolerance variations rather than the actual operation of the flume itself and users are cautioned to verify the flume's dimensions before proceeding with data collection.
37.
Pumps also differ in details like manufacturing tolerances, sealing material, pressure, flow, admission or no admission of oil vapor, service intervals, reliability, tolerance to dust, tolerance to chemicals, tolerance to liquids and vibration.
38.
So as well as a track gauge, P4 also specifies the wheel profile and track parameters to use, which are largely a scaled-down version of real-life standards with some allowances for practical manufacturing tolerances.
39.
CDs are usually manufactured in a class 100 ( ISO 5 ) or better clean room; they can usually be manufactured to quite strict manufacturing tolerances for only a few US cents per disk.
40.
Another notable difference from compact cassettes is that the tape is withdrawn from the cassette when run through the transport mechanism so that the manufacturing tolerances of the cassette shell will not affect sound quality.
