Thin Section Ball Bearing Five And One Half Inch Inner Diameter Six And One Eighth Inch Outer Diameter Five Sixteenth Inch Width Open Steel ABEC 1 Quality Oil Preserved High Precision Bearing For Machinery And Industrial Equipment

Thin section bearing 5.5" x 6.125" x 0.312" in, single unit
✔️ 1 pc thin-section bearing, 5.5 ID x 6.125 OD x 0.312 W

This thin section ball bearing is a compact, open-type radial bearing designed for precise load support in tight spaces. It's commonly used in linear slide units, robotic joints, micro CNCs, and aerospace components where a slim profile matters.

✅ Inner diameter 5.5" (139.7 mm), outer diameter 6.125" (155.6 mm), width 0.3125" (7.94 mm)
✅ Open design; cage: brass; lubrication: oil preservative
✅ ABEC 1 quality; deep groove radial ball bearing; chrome steel
✅ Equivalents: KB055CP0, SB055CP0, KB055CPO, SB055CPO

💡 What is a thin section ball bearing used for in compact machinery?

These handy bearings enable precise motion in space-constrained setups.

- In linear slide units and compact actuators
- In robotic joints and small CNCs
- In aerospace components with slim profiles
- For gear trains and guided assemblies where space is tight