Glossary of Terms
MACHINE CROWNED PULLEY:
A pulley in which the crown or vertex has been produced by an automatic,
usually computer driven, machine.
MAGNETIC STARTER: An electrical device that controls the motor and also provide overload protection to the motor.
MANUAL START SWITCH: A simple one-direction switch used to turn the conveyor on or off.
MINIMUM PRESSURE ACCUMULATING CONVEYOR: A type of conveyor designed to minimize build-up of pressure between adjacent packages or cartons. (l38-ACC - 19O-ACC)
MOTOR: A machine that transforms electric energy into mechanical energy. Standard motors are dual voltage and operate at 1725 RPM.
NEGATIVE CROWNED PULLEY: A pulley with raised areas set equally in from each end. This crown is used on tail pulleys 24 in. OAW and wider, and aids in belt tracking.
NET LIFT: The net vertical distance through which material is moved against gravity by a conveyor.
NIP POINT GUARD: A guard placed to eliminate points or areas on the conveyor where injuries might occur.
NOSE ROLLER: A small roller, used on power belt curve conveyors, to reduce the gap at the transfer points.
NOSEOVER: A section of conveyor with transition rollers placed in conveyor to provide transition from incline to horizontal or horizontal to incline.
0-RING: Polyurethane bands polyurethane used to transmit drive power from roller to roller or spool to roller. (138-SP, 190-SP)
OVERALL LENGTH: (OAL) The dimension outside of pulley to outside of pulley including belting or lagging, of any conveyor lengthwise.
OVERALL WIDTH: (OAW) The dimension outside to outside of frame rails.
OVERHEAD DRIVE: A drive assembly mounted over a conveyor, which allows clearance for the product.