Abstract: A conveyor roller includes a roller body that defines a fill cavity. A concrete material at least partially fills the fill cavity in the roller body. A bearing assembly is coupled to the roller body. The bearing assembly is configured to facilitate rotation of the roller body. The roller body acts as a mold to allow curing of the concrete material to occur even after final assembly of the conveyor roller. In one example of the manufacturing method, the concrete material is poured into one or more fill cavities inside the roller body, and bearing assemblies are attached to the opposite ends of the roller body. The concrete material can continue to cure even after the bearing assemblies are attached. In one example, the bearing assemblies act as plugs, thereby sealing the concrete material within the fill cavities of the roller body.

Abstract: A roller bearing end hub has a housing that internally houses a plane bearing, pin, and spring. The spring is biased against the plane bearing which is rotatably connected with the pin. The housing includes two half-housings which are configured to be mated together. The bearing is formed of a shape similar to the housing interior. The pin is smaller than an attached axle stub and the spring does not directly interact with the pin such that the amount of friction between the pin and bearing is minimized.

Abstract: A roller bearing end hub has a housing that internally houses a plane bearing, pin, and spring. The spring is biased against the plane bearing which is rotatably connected with the pin. The housing includes two half-housings which are configured to be mated together. The bearing is formed of a shape similar to the housing interior. The pin is smaller than an attached axle stub and the spring does not directly interact with the pin such that the amount of friction between the pin and bearing is minimized.

Abstract: A robotic automated storage and retrieval system (AS/RS) mixed pallet build system includes a rack that includes two or more verticals levels upon which items are stored. The mixed pallet build system further includes a three-dimensional robotic AS/RS that includes a carriage, robot arm, vertical lift, and horizontal propulsion system. The items from the rack are loaded upon the carriage to create a pallet. The carriage has a length that is shorter than the length of the rack. The robot arm is configured to stack the items from the racks onto the pallet. The vertical lift is configured to move the carriage vertically between the vertical levels of the racks. The horizontal propulsion system is configured to move the carriage horizontally along the rack so that the carriage is able to service the entire length of the rack. The three-dimensional robotic AS/RS also includes a stretch wrapper that progressively secures the layers of items on the pallet to prevent the items from falling off the pallet.

Abstract: A robotic automated storage and retrieval system (AS/RS) mixed pallet build system includes a rack that includes two or more verticals levels upon which items are stored. The mixed pallet build system further includes a three-dimensional robotic AS/RS that includes a carriage, robot arm, vertical lift, and horizontal propulsion system. The items from the rack are loaded upon the carriage to create a pallet. The carriage has a length that is shorter than the length of the rack. The robot arm is configured to stack the items from the racks onto the pallet. The vertical lift is configured to move the carriage vertically between the vertical levels of the racks. The horizontal propulsion system is configured to move the carriage horizontally along the rack so that the carriage is able to service the entire length of the rack. The three-dimensional robotic AS/RS also includes a stretch wrapper that progressively secures the layers of items on the pallet to prevent the items from falling off the pallet.