Product Review

4Pcs Linear Rail Shaft Guide Support in a pack.
Model: SHF12
Fit for 12mm diameter bearing or Optical axis
Material: Aluminum Alloy
Color: Silver Tone
Shaft diameter: 12mm/0.47inch
Mount Hole Diameter : 5.5mm/ 0.22inch
Total Size: 47×27×13mm/ 1.85x1.1x0.51inch(L×W×H)
Packing Weight: 85g
Packing Size: 12.5x9x2cm

The Ball Bearings is great for you to replace the damaged Ball Bearings in your devices to improve them efficiency and save energy.
Widely used in home appliances, industrial, low noise and high speed electric motors, construction machinery, automotive components, pumps, and machinery.