30mm Ball Bushing SDM30GA Steel Retainer Linear Motion Bearing

SDM30GA linear ball bushing for 30 mm shafts
✔️ linear ball bushing 30x45x64 mm smooth motion guide

This single SDM30GA linear ball bushing is designed for smooth, low friction linear travel on 30 mm round shafts. With multiple ball circuits, it’s a handy choice for automation, CNC machines, and linear motion systems that need steady movement and consistent alignment.

✅ Shaft bore: 30 mm
✅ Outer diameter: 45 mm
✅ Overall length: 64 mm
✅ Linear ball bushing design
✅ Six ball circuits for smooth load distribution
✅ Supports precise linear motion on round shafts
✅ Dynamic load rating Cr: 1,750 N
✅ Static load rating Cor: 2,740 N
✅ Pack size: one bearing

Dimensions
Inner diameter: 30 mm
Outer diameter: 45 mm
Length: 64 mm

💡 Why are linear ball bushings used instead of plain bushings in motion systems?
Linear ball bushings reduce friction and improve accuracy in straight line motion.

• Rolling balls provide smoother travel than sliding surfaces

• Multiple ball circuits improve load handling and stability

• Helps maintain precision in CNC and automation equipment

Use this linear bushing when you want clean, smooth linear movement and dependable performance in precision motion setups.