634 Z Deep Groove Ball Bearing Double Shielded 4 mm Inner Diameter 16 mm Outer Diameter 5 mm Width Single Row Radial Bearing Shielded 4x16x5 Ideal for Precision Machinery Robotics Automotive and Industrial Applications with Smooth Operation

These compact radial bearings are single-row deep groove units designed for smooth rotation in small machines, hobby projects, 3D printers, and lightweight conveyors.

✅ Deep groove ball bearing, single row (4x16x5; 4 mm ID / 16 mm OD / 5 mm width) (0.157" x 0.630" x 0.197")
✅ Sealed, double-shielded design keeps lubricant in and contaminants out
✅ Radial load rating: dynamic 1.11 kN, static 0.38 kN

💡 What is a sealed deep groove bearing used for in compact machinery and DIY projects?

This handy bearing is commonly used where space is tight and smooth rotation matters.

• sealed deep groove bearing for small CNC machines, 3D printers, and hobby robotics
• low friction radial load support on 4 mm shafts
• double shield seals protect lubrication and minimize maintenance