Wheel-balancing weights

Wheat leaf Wheat protein Wheat stem rust Wheatstone bridgf Wheel-balancing weight ... 

Low (2—5 wt %) antimony, low (2—5 wt %) tin lead alloys are used for automobde body solder. Special lead—antimony alloys containing 1—4 wt % antimony are used for wheel-balancing weights, battery cable clamps, collapsible tubes, and highly machined isotope pots. 

Electromechanical grinding wheel balancing systems are available which measure the vibrations caused by an unbalanced grinding wheel and suitably move weights flanged to the outside of the grinding wheel, or inserted in the machine spindle. This eliminates the need to manually pre-balance. 

The most cost-effective way to produce a high polytropic head is to increase the number of wheels on the rotor. But the longer the rotating assembly, the more difficult it is to properly balance the rotor. Especially for high-speed machines, rotors which become unbalanced are subject to destructive vibration. Therefore, for low-molecular-weight gas services (less than 10), it is not uncommon to use reciprocating compressors. 

The cartridges which are of less than the normal weight, are raised upward and are thrown off by the scales themselves into another receiver, from whence they fall Into a locked-up box. The fly-wheel with the balances makes 7 revolutions per minute, that U, performs 3,600 weighings per hour, or, 000 per day, allowing for subsidiary work and chance stoppages. ... 

A-3.2. The longitudinal stability of a counterbalanced powered industrial truck depends on the vehicle s moment and the load s moment. In other words, if the mathematic product of the load moment (the distance from the front wheels, the approximate point at which the vehicle would tip forward) to the load s center of gravity times the load s weight is less than the vehicle s moment, the system Is balanced and will not tip forward. However, if the load s moment is greater than the vehicle s moment, the greater load-moment will force the truck to tip forward. 

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