LM4UU Linear Motion Bearing 4mm Miniature Ball Bushing

LM4UU Miniature Linear Ball Bushing
✔️ Fits 4mm Shafts - Smooth Linear Motion

The LM4UU linear motion ball bushing is designed to guide 4mm shafts with minimal friction and high precision. With built-in rubber seals and four ball circuits, it’s ideal for compact CNC machines, 3D printers, and automation systems.

✅ Type: Linear motion ball bushing
✅ Inner diameter: 4mm
✅ Outer diameter: 8mm
✅ Length: 12mm
✅ Number of ball circuits: 4
✅ Dynamic load rating (Cr): 88 N
✅ Static load rating (Cor): 127 N
✅ Built-in rubber seals
✅ Quantity: One bearing

💡 What does a linear ball bushing do in motion systems?
Linear ball bushings allow smooth, low-friction sliding along a shaft while maintaining tight tolerance and alignment. They’re commonly used in precision machines to support accurate, repeatable movement.

A compact, reliable bearing for precise linear applications on 4mm shafts.