NB SM20UU 20mm Slide Bush Ball Bushings Linear Motion Bearing

SM20UU Linear Slide Bush 20mm Shaft
✔️ Sealed both sides, NB brand, made in Japan

This is a single SM20UU linear slide bush (pack of 1) from NB (Nippon Bearing), built for smooth linear motion with seals on both sides to block dust and protect the ball track. It is mainly used in CNC automation, precision handling systems, robotics, and motion stages that need clean tracking and low friction.

✅ Shaft diameter: 20mm
✅ Ball circuits: 5
✅ Dynamic load rating (Cr): 882 N
✅ Static load rating (Cor): 1370 N
✅ Sealed both sides
✅ Made in Japan
✅ Quantity: 1 bearing

Dimensions Table

dr (shaft) 20mm
D (outer) 32mm
L (length) 42mm
B 30.5mm
W 1.6mm
D1 30.5mm
Precision class high grade

💡 What makes sealed linear slide bushings better for clean motion systems?
They use a protected ball path that keeps lubricant in and contamination out during repeated travel.
- Seals preserve accuracy by preventing debris from entering the track
- Rolling motion stays smooth under repeated strokes
- The multi-circuit design spreads load for longer life

If you're building or upgrading a motion setup and need something smooth, sealed, and reliable, this one is a solid fit, toss it in your cart and keep things gliding clean.