U Groove Pulley Wheel Roller Bearing Set 10 Pcs U624zz 0.51 Inch OD U Type Guide Pulley Carbon Steel Built To Last For Window Door Linear Motion System Smooth Grease Filled Operation

U Groove Pulley Bearing Set, 10 Pcs, for Smooth Sliding Systems
✔️ 13 mm OD (0.51 in), 4 mm ID (0.15 in), U-groove 1.8 mm (0.07 in)

This 10-piece U-groove guide pulley set is made from carbon steel, built for durability. Ideal for window and door hardware, glass sliding doors, and linear motion systems, it provides smooth, grease-filled operation.

✅ Outer diameter 0.51 in (13 mm); inner diameter 0.15 in (4 mm); U-groove depth 1.8 mm (0.07 in)
✅ Carbon steel, grease-filled for smooth operation
✅ Pack of 10 pulleys for easy maintenance and replacement
✅ U-groove keeps guides aligned and reduces deviation during sliding

💡 What is a U groove pulley used for in window and door hardware and linear motion setups? A handy guide wheel designed to ride in a track, keeping moving parts aligned and reducing friction. - sliding doors and window track guide hardware - grease-filled carbon steel pulley for smooth, quiet operation - fits 13 mm outer diameter and 4 mm inner diameter rails

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