Head/Drive Pulley is located at the discharge terminus of the conveyor. It provides the driving force for the conveyor. In order to increase pulley life and traction, it often has a larger diameter than other pulleys.
In the conveyor belt system, a head pulley has power applied to it and an idler is a pulley that has no power. The head pulleys will cause the belt to move toward them, while the idler pulley simply turns over and allows the belt to move. The power can be derived from a motor or can be provided by hand. The larger the materials or goods that are moved by the conveyor built the pulley is powering, the stronger the motor or other power source will need to be that drives the head pulley.
Spherical Roller bearing are available with heavy duty rollers and cages that are suitable for extreme demand harsh applications such as vibratory screens.
Spherical Roller Bearing
Series 222.., 223.., 230.., 231.., 232.., 239.. 240.., 241.., CA/CC/W33
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