Length and Specifications We roller lengths to fit various projects, building layouts, and conveyor needs. If there is no suitable size in the list, we can the size you want. Available standard configurations: 1) Roller phi 25 mm / 1 inch Shaft phi 8 mm (3.1 inches) 2) Roller phi 32 mm (1.3 inches) Shaft phi 8 mm (3.1 inches) 3) Roller phi 38 mm / 1.5 inches Shaft phi 12 mm (1/2 inch) 4) Roller phi 50 mm / 1.5 inches Shaft phi 12 mm (1/2 inch) 5) Roller phi 60 mm / 2.4 inches Shaft phi 12 mm (1/2 inch) Stainless Steel Unpowered Rollers Replacement conveyor belt rollers made of stainless steel, offering waterproof and rustproof performance with no warp. Suitable for handling and transporting goods weighing up to 90 lbs. Unpowered rollers rely on the object's own movement to propel motion, reducing mechanical failures and lowering maintenance costs. Spring Pressin Mounting A key feature is the spring installation mechanism, which simplifies assembly. To install, push the spring in or pull it out from the opposite side to securely mount the roller into the conveyor frame. Versatile Uses and Applications These steel rollers can function as rollers or as replacement rollers for roller stands used in woodworking, saw stands, material stands, boat rollers, and dock rollers. Suitable for DIY woodworking, metalworking, or any other heavyduty application. When used with appropriate brackets, they may also be part of a cat or dog jumping fence solution.