90mm universal bearing pulley wheel is for fitness equipment, garage door pulley system, sliding door pulley, cable machine and other parts of spare. Weight of outer diameter pulley: 110 mm; Inner hole diameter: 10mm. Thickness: 25mm. Slot depth: 10mm; Slot width: 10 mm. Suitable for ropes with a diameter of up to 7mm. The inside of the cable pulley is made of solid steel, the other is made of durable nylon which allows the universal wheel to load a maximum of 500 kg. The 90mm nylon pulley is light, wear-resistant and has a long service life. Quiet pulley, no friction spark, good safety performance and easy installation. Nylon Wheel gradually replaces the old metal pulley with its unique superiority, it has been widely used in lifting equipment as tower crane accessories.&lt; ; /p&gt; Color: Black Material: Nylon+Steel Size: Outer diameter: 110 mm ; Inner diameter: 10 mm Bearing thickness: 25 mm Groove depth: 10 mm; Groove width: 10mm 110mm Wheel features: Lightweight, easy to install Wear-resistant, long service life life&lt;/ p&gt; No friction spark, good safety performance Load capacity up to 500 kg Application: fitness equipment, gym pulley, weight lifting pulley, garage door pulley system, sliding door pulley, cable pulley and other spare parts. Package including:< /p> 4 pieces of 90mm nylon pulley