CNBTR 16mm Bore Aluminum A Type 4 Step Pulley Wheel for V-Belt Timing Belt (Outer diameter: 41, 70, 99, 130mm)

NOTE:The bore id doesn't fit for 5/8” motor shaft；No set screw and short bore length makes this a PITA to use.. Aperture: 16mm, outer diameter of stage 4: 41, 70, 99, 130mm, 4-slot design can be applied to different speed ratio requirements.Shaft distance from the top to the bottom of the pulley (height): 82mm/3.23"". Made of Solid Aluminum: This aluminum 4-layer A-shaped pagoda pulley is carefully forged from high-quality aluminum and has a hard texture, providing solid and reliable power transmission guarantee for your equipment.. Unique Four-layer Design: The four-layer structure increases layer by layer, shaped like a pagoda, and evenly shares pressure during the transmission process, making power transmission smooth and smooth.The surface is smooth, effectively reducing friction loss and extending service life.. Wide Adaptability: Its universal A-shaped design allows it to perfectly match many different types of equipment and machinery, easily opening the door to various power transmissions.