10-Pack 6203Z Single Shielded Bearings 17x40x12mm

6203Z One Shield Deep Groove Ball Bearings
✔️ 17mm Bore - 40mm OD - 12mm Width

These 6203Z chrome steel ball bearings feature a shield on one side for dust protection while leaving the other side open for easy relubrication. Designed for durability, high-speed performance, and long service life, they come in a handy pack of ten for bulk maintenance or manufacturing use.

✅ Inner diameter (bore): 17mm
✅ Outer diameter: 40mm
✅ Width: 12mm
✅ Closure: One metal shield
✅ Material: Chrome steel
✅ Quantity: 10 bearings per pack
✅ Pre-lubricated with grease
✅ Dynamic load: 9,550 N
✅ Static load: 4,800 N

💡 Why choose a single-shield bearing over a double-shield design?

• Allows for direct relubrication from one side

• Reduces rolling resistance slightly compared to double-shielded

• Works well where one side is protected inside a housing

Ideal for motors, gearboxes, and machinery where periodic lubrication is part of the maintenance plan.