Ceramic Sealed Ball Bearing 15x21x4mm With Ceramic Balls 6702-2RS Durable 52100 Alloy Steel Construction Shielded Precision Bearing For Fishing Reels And General Mechanical Applications Low Friction And High Durability

Ceramic Sealed Bearing 6702-2RS 15x21x4mm
✔️ 15x21x4 mm, ceramic balls, dual seals, single bearing

This compact bearing is a 6702-2RS hybrid ceramic sealed ball bearing designed for precise motion in small assemblies. Commonly used in fishing reels and other compact machinery where smooth rotation and dust protection matter. It uses durable 52100 chrome steel races with ceramic balls for extended life and ships pre-lubricated for immediate use.

✅ Size: 15 x 21 x 4 mm (inner 15, outer 21, width 4)
✅ Material: Chrome steel 52100 races with ceramic balls
✅ Seals: Dual rubber 2RS seals for dust and moisture protection
✅ Lubrication: Pre-lubed with grease for immediate use

💡 What is a ceramic sealed bearing used for in precision gear?

Handy for compact, precise systems that need long life and smooth motion.

- Sealed ball bearing benefits in small machinery and reels
- Ceramic bearings reduce friction and wear for longer life
- How to choose a ceramic hybrid bearing for compact assemblies