Durability 4pc Nylon White Garage Door Rollers Wheel Ball Sealed Bearing 170mm Length Quiet and Smooth Wheels Replacement

Usage Tips: Before installation, clean dust and debris inside the garage door track and check if the track is deformed to ensure it is smooth and unobstructed; when installing, gently push the roller into the track and avoid forced clamping to prevent component damage; regularly check the lubrication status of the roller bearings; if rotation jamming occurs, add special high-temperature grease and do not use ordinary lubricating oil; avoid letting the garage door bear excessive load for a long time to prevent roller structure deformation from affecting operation smoothnessSpecifications:-Shank Material : Iron-Wheel Material : Nylon-Sealed Ball Bearing Quantity : 13 Pieces-Shank Diameter : 10mm(0.39")-Total Length : 175mm (4")-Wheel Diameter : 45mm (1.78")-Wheel Thickness :11mm(0.43")Package Included:4 x Garage Door Roller WheelTips:1.Due to the light and monitors effect, colors may have lightly difference.2.Please allow slightly size errors due to manual measurement. Thank you for your understanding!

• Replacement: After replacing old garage door rollers, it enables the garage door to open and close quietly, smoothly, and with a straight running track, completely eliminating noise interference and jamming issues caused by traditional rollers​
• Quiet Performance: The optimized bearing structure and sealing design significantly reduce the noise level of the garage door during operation, with running noise far lower than ordinary roller products, creating a quiet garage usage environment​
• Durability: Sealed bearings combined with a reinforced structural design enhance the roller's wear resistance and weather resistance, allowing it to withstand high-frequency door opening and closing cycles and load tests for a long time, effectively extending the service life​
• Lubrication Protection: The bearing is built with special grease that can adapt to working environments with a wide temperature range, while blocking dust, dirt, and other impurities from entering the bearing interior, ensuring the roller always maintains a smooth rotating state​
• Compatibility: It can be adapted to various types of garage doors and related door structures, and can directly replace old, damaged, or noisy traditional roller components, meeting the diverse usage needs of residential and commercial scenarios