10PCS Nylon Roller Bearings 8mm U-Groove Pulley Durable Guide Rail Wheel For
Feature: \n 1. This u groove pulley is widely used in doors and window to track and drive mechanical equipment.\n2. Nylon roller bearings have good physical, mechanical and chemical properties, especially have great wear-resistance.\n3. The practical bearing can reduce the friction with the wheel, so it can be used more smoothly and flexibly, and it can achieve great mobility.\n4. This u groove pulley is made of high quality material, these pulleys are durable, sturdy and wearable.\n5. This u groove pulley internal has lubrication grease, smooth operation, good muted effect. \n\nSpecification: \nSpecifications:\n\nInner Diameter: Approx. 8mm / 0.3in\n\nOuter Diameter: Approx. 40mm / 1.6in\n\nThickness: Approx. 20.5mm / 0.8in\n\nGroove Width: Approx. 17.5mm / 0.7in\n\nGrrove Deepness: Approx. 5mm / 0.2in\n\nQuantity: 1pc\n\nPackage included:\n\n1 x Groove Guide Pulley Sealed Rail Ball Bearing \n\n1. Our listing price includes the value of goods,pac:
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