Double Shielded Deep Groove Ball Bearing 17x30x7 Mm Single Row Radial Bearing 61903-2Z Durable Precision Bearing For Machinery And Equipment With 17 Mm Inner Diameter 30 Mm Outer Diameter And 7 Mm Width Ideal For Replacements And Upgrades

Compact 17x30x7 mm sealed bearing, single row, 1 pc

✔️ 17x30x7 mm, 2Z double shielded, sealed ball bearing

This single-row deep groove ball bearing is designed for radial support in small machinery, hobby projects, and light automation. Double shields protect against dirt and extend service life.

✅ Inner diameter: 17 mm (0.669 in)
✅ Outer diameter: 30 mm (1.181 in)
✅Width：7 mm (0.276in)
✅ Shielding: double shielded 2Z
✅ Dynamic load rating: 4.62 kN
✅ Static load rating: 2.55 kN
✅ Material: chrome steel (AISI 52100)
✅ Package: single bearing

💡 小型機械において、sealed はどのような用途に使われるのでしょうか？

Here's a handy general explanation for common uses:

• Provides reliable radial support for rotating shafts in compact equipment
• Reduces friction and wear in hobbyist projects, robotics, and light automation
• Double shields protect against dust and contaminants, extending service life