Test Instruments India | Under 1 Roof 1679 Testing Instruments To Chose!

Journal Bearing Apparatus


Journal Bearing Apparatus consists of a plain steel shaft excavated in a bearing and directly driven by a FHP Motor. The bearing is freely supported on the shaft and sealed at the motor end. The speed of the motor is controlled accurately by the speed control unit and it can be made run in both directions. Twelve equal-spaced pressure taping around the circumference and four along the axis are provided and are connected to manometer by PU Tubing so that the pressure head of oil in all tubes can be observed at a time. The bearing can be loaded by attaching weights to the arm supported beneath it.

Scope of Experimentations:

To study the pressure profile of lubricating oil at various conditions of load and speed
Plotting the Cartesian polar pressure curves
To measure the frictional torque and power transmit

Utilities Required:

Electric supply 230 V AC, Single Phase
Bench area 1.5 x 1.5 x 4 m
Tachometer to find out RPM of journal
Oil SAE 40 about 5 Ltrs


Journal Diameter 50 mm
Bearing Diameter 55 mm
Weights 4 adjustable weights
Motor Variable speed FHP Motor
Control Panel For speed control of motor
Manometer 16 Tubes
Oil recommended SAE 40