Normal in this context means that 95 percent of the healthy population is within that range, which implies that about 2.5 percent of healthy people will have a white blood cell count over 11,000. Many conditions cause the WBC count to increase temporarily, especially infection. However, if the condition is persistent, then the first step in understanding why is to determine which type of white blood cells has increased.
All stock gears are made in accordance with the diametral. pitch system. The diametral pitch of a gear is the number of. teeth in the gear for each inch of pitch diameter. Therefore, the. diametral pitch determines the size of the gear tooth.
This indicates a gear ratio of 6.7:1, rounded to 7:1. Recall that with a gearhead, torque rises and output shaft speed drops with the gear ratio. You can now size the gearhead to a motor by figuring 66 oz-in. Ã 1.5 (safety factor) = 100 oz-in. of output torque from the gearhead.This gives 100 oz-in./7 = 14 oz-in. from the motor through the gearbox and 37 rpm Ã 7 = 259 rpm from the motor. In this case, the rpm and torque are more than is required.et us take a concrete example of a Baldor Electric Co. dc motor that generates 11,500 rpm with a 1-in.-pitch-diameter pulley. This configuration will produce a linear speed of 36,128 ipm, or 3,011 fpm, or 602 ips. The pulley size, of course, could be changed to vary the speed or torque.