63801ZZ Shielded Ball Bearing 12x21x7 mm Durable Chrome Steel Construction For Industrial And Mechanical Applications, Precision Ground Inner And Outer Races, Low Friction, High Load Capacity, Reliable Performance

12x21x7 Shielded Ball Bearing 63801ZZ, Single Unit
✔️ 12mm bore, 21mm OD, 7mm width; chrome steel; dual shields

Shielded deep groove ball bearing sized 12x21x7 mm designed for quick drop-in use in compact machinery. Commonly found in conveyors, small motors, automation carts, and other light-to-medium duty equipment where reliable radial support and dust protection matter.

✅ Bore: 12 mm
✅ Outer diameter: 21 mm
✅ Width: 7 mm
✅ Material: chrome steel
✅ Shielding: dual metal shields (ZZ)

💡 What is a pillow block bearing used for in small to mid sized machinery and how does a sealed ball bearing protect shafts?

These handy bearings support rotating shafts in compact frames while guarding against dust and grime.

- Useful in conveyor rollers, small motors, and automation equipment
- Sealed ZZ shields reduce contamination and maintenance needs
- Pre-lubricated grease allows immediate use with minimal setup