[Features] The more commonly used as a general name for the unit, it is the most representative form of the unit. Heavy duty one-piece bearing box with bearings built into the most widely used in all conductors. Specifications: Shaft diameter: 0.8 inches (20 mm), H dimensions: 1.3 inches (33.3 mm), L dimensions: 5.0 inches (127 mm), A dimensions: 1.5 inches (38 mm), J dimensions: 3.7 inches (95 mm), H2 dimensions: 2.4 inches (62 mm), B dimensions: 1.2 inches (31 mm).