The Rulmeca Motorized pulleys have the motor, gearbox and bearings totally enclosed and sealed inside a steel shell; therefore they are unlikely to fail due to harmful environmental conditions such as water, dust, grit chemicals, grease, oil, etc. Because the drive unit and the bearings are mounted inside the Motorized Pulley shell, it takes up much less room than a conventional drive.
The Rulmeca Motorized Pulleys are quite often less expensive than exposed drives because they have fewer parts. They usually have a much higher efficiency from electrical motor to shell (Pulley face) than conventional drives, because they have fewer frictional losses.
The motorized pulleys can be offered in stainless steel under request in order to stand high pressure water, usual cleanings with acid and alkaline detergents, aggressive salt water and extreme temperatures. This is made possible thanks to the motor, gearbox and bearings totally enclosed and sealed inside the shell.