Open Ball Bearing 7x19x4 Miniature Deep Groove Chrome Steel 52100 Bearing With 7mm Inner Diameter 19mm Outer Diameter And 4mm Width For Precision Hobbies And Small Machinery For Model Making RC Cars Drones And Other Precision Applications

This open deep groove ball bearing measures 7 mm bore, 19 mm outer diameter, and 4 mm width. It's a compact, high-precision part commonly used in small hobby motors, RC gear, micro assemblies, and linear slide units where smooth rotation and load handling matter. Made from 52100 chrome steel for strength and durability.

✅ 7 mm bore x 19 mm OD x 4 mm width
✅ 52100 chrome steel, open deep groove bearing
✅ Cr: 2,600 N; Cor: 1,050 N dynamic/static ratings
✅ Grease lubrication: up to 40,000 RPM; Oil lubrication: up to 47,000 RPM
✅ Qty: 1 bearing (pack size: single)

💡 What is a ball bearing used for in small mechanisms? These handy components help cut friction and wear in tight spaces, keeping moving parts smooth and reliable. - reduces friction in compact mechanical assemblies - supports radial loads for tiny motors and gear systems - fits 7 mm bores and 19 mm outer diameters in tight spaces