DESCRIPTION :

The apparatus consists of a variable speed D. C. Motor. Driving pulley and driven pulley of equal diameters. The pulleys are mounted on Input shaft (Motor shaft) and output shaft. The driven pulley can slide on the base only with bearing block to change the initial tension in belt. Brake drum is mounted on the output shaft, which help to measure power output. Dimmer stat varies the motor speed. A two channel Digital Speed Indicator indicates driving and driven pulley speeds. With the help of Stroboscope it is possible to demonstrate the slip of belt on Driving and Driven Pulley.

SPECIFICATIONS:

1. D. C. Motor- 1 H. P., 1500 RPM. 230V., Variable speed.
2. Driving and driven pulleys of equal diameters (Flat Pulleys).
3. Brake drum along with spring balance and rope arrangement is provided to load the system.
4. Flat belts of fixed length of following belt material 
   i)       Fabric Belt
   ii)      Canvas Belt.
   iii)      Rubber Belt (leather)
5. Belt tightening arrangement - Bearing block is sliding and dead weight can be applied to see the initial tension in belt.
6. Speed Indicator: Two digits speed indicator. Switch to change the channel.

EXPERIMENTATION:

1. To measure co-efficient of friction between pulley material and different belt materials.
2. To measure power transmitted with varied belt tension.
3. To measure percentage slip at fixed belt tension by varying load on the Brake drum and plot the graph of  (T1-T2) v/s
4. Percentage slip i.e. "Slip Characteristics" Finding a Creep Zone from graph.
5. To measure belt slip speed and observe the limiting value of load at constant speed when the slip just starts.
6. To study creep of belt.

DESCRIPTION :

The apparatus consists of a variable speed D. C. Motor. Driving pulley and driven pulley of equal diameters. The pulleys are mounted on Input shaft (Motor shaft) and output shaft. The driven pulley can slide on the base only with bearing block to change the initial tension in belt. Brake drum is mounted on the output shaft, which help to measure power output. Dimmer stat varies the motor speed. A two channel Digital Speed Indicator indicates driving and driven pulley speeds. With the help of Stroboscope it is possible to demonstrate the slip of belt on Driving and Driven Pulley.

SPECIFICATIONS:

1. D. C. Motor- 1 H. P., 1500 RPM. 230V., Variable speed.
2. Driving and driven pulleys of equal diameters (Flat Pulleys).
3. Brake drum along with spring balance and rope arrangement is provided to load the system.
4. Flat belts of fixed length of following belt material 
   i)       Fabric Belt
   ii)      Canvas Belt.
   iii)      Rubber Belt (leather)
5. Belt tightening arrangement - Bearing block is sliding and dead weight can be applied to see the initial tension in belt.
6. Speed Indicator: Two digits speed indicator. Switch to change the channel.

EXPERIMENTATION:

1. To measure co-efficient of friction between pulley material and different belt materials.
2. To measure power transmitted with varied belt tension.
3. To measure percentage slip at fixed belt tension by varying load on the Brake drum and plot the graph of  (T1-T2) v/s
4. Percentage slip i.e. "Slip Characteristics" Finding a Creep Zone from graph.
5. To measure belt slip speed and observe the limiting value of load at constant speed when the slip just starts.
6. To study creep of belt.