<p>The 90mm universal bearing pulley wheel is for fitness equipment, garage door pulley system, sliding door pulley, cable machine and other spare parts.Outer diameter of the weight pulley: 90mm; Inner hole diameter: 10mm. Thickness: 25mm. Groove depth: 10mm; Groove width: 10mm. Suitable for ropes with a diameter up to 7 mm. The inside of the rope pulley is made of strong steel, the other is made of durable nylon which allows the universal wheel to maximum load 500 kg. The 90 mm Nylon Pulley is lightweight, wear-resistant and has a long service life. Quiet pulley, no friction sparks, good safety performance and easy installation.Nylon Wheel is gradually replacing the old metal pulley with its unique superiority, has been widely used in lifting equipment as tower crane accessories .</p>