The apparatus is used for studying the acceleration of a geared system as well as geared system efficiency under different gear ratios.

The system consists of three shafts, two stage spur gear unit with two fixed gear and two sliding gear sets. All shafts rest on ball bearings on a steel frame.

The first shafts has a cable drum for weight hanger.

The second shaft has an interchangeable inertia mass. A speed sensor monitors the mass speed.

A motor dynamometer measures the gear system input power. This motor dynamometer drives the first shaft via an electric clutch. Speed is controlled by an inverter.

A mechanical brake dynamometer is attached to the third shaft for measurement of the gear system output power.

For a study of acceleration of the geared system, a weight hanger provides torque on the cable drum and speed sensor can measure inertia mass velocity and acceleration.

The apparatus has a transparent cover with interlocks for safety protection. The unit is steel frame with adjustable footings.

  • Inertia of a mass and of a geared system.
  • Input power, output power, and efficiency.
  • Effect of speed and load on efficiency.
Gear : Spur gear module 2.
Transmission ratio alternatives : 3
Weight hanger and weights : 1 lot.
Inertia masses : 2
Speed control : 0.75 kW inverter for controlling motor speed.
Power measurement    
-Torques : Digital display for input and output shafts.
-Speeds : Digital display for input and output shafts.
Power supply : 220 V, 1 Ph, 50 Hz. Other power supply is available on request.
Accessories : Rubber pad and stop watch
Net (unpacked) shipping dimensions WxLxH : 75 x 100 x 60 cm.
Net Weight : Approx. 127 kg

MM 242-050 Computer InterfaceThis includes computer interface unit and software for data display and analysis by computer (separately supplied).