Le Black Zirconia are a pair of pulleys for roller guns characterized by incredible reliability. The outer component is made of black Delrin, machined by solid turning, and is fitted with a cap that allows for perfect centering The bearing on the centerline. The inner bore is wider than the axle bore, so that all the work is shifted to the bearing. This allows for a working load of up to 169 kg. Pulleys Black ZirconiaMoreover, they do not require much maintenance as they are totally insensitive to the agents and temperatures typical of the marine environment. The groove, made with a trapezoidal section, can accommodate elastics up to 16mm in diameter. Outer diameter: 28 mm. Throat diameter: 20 mm. Inside diameter (shaft): 6 mm. Thickness: 15 mm. Read more
