A
small electric motor is used to directly drive a plain steel shaft that is
housed in a bearing as part of the device. On the shaft, the bearing is supported
freely and is sealed at the motor end. The control unit carefully regulates the
motor speed, and the motor end is sealed. The motor speed can be operated in
either direction and is accurately controlled by the control unit. The bearing
has four pressure taps along the axis and twelve evenly spaced pressure taps
around the circumference. All are connected to the manometer via a thin,
flexible plastic tube, allowing for simultaneous observation of the pressure
heads at all sixteen points. By adding weight to the arm that is supported
beneath the bearing, it can be loaded.
SPECIFICATIONS:
EXPERIMENTS:
SERVICE
REQUIRED:
