Bearings
Ball Bearings
Miniature Bearings
Quick Code: BB-7742
623 Budget Open Miniature Ball Bearing 3mm x 10mm x 4mm


The 623 Budget Open Miniature Ball Bearing is a precision-engineered component designed for compact mechanical applications requiring smooth, low-friction rotation. Ideal for a wide range of industries and hobby projects, this miniature ball bearing offers exceptional versatility and performance.
Key Features:
- Deep groove ball bearing design
- Single row configuration
- Open type bearing allows free lubrication flow
- Compact dimensions: 3mm x 10mm x 4mm
- Stainless steel construction for durability
Common Applications:
- Power tools
- Skateboards and roller blades
- Remote controlled hobby vehicles (cars, boats, planes)
- Small mechanical devices
- Robotics and precision engineering projects
As an open bearing, the 623 allows oil or grease to flow freely through the bearing, ensuring optimal lubrication. This design makes the bearing versatile, robust, and relatively easy to maintain. The open type construction provides excellent accessibility for relubrication and cleaning, making it perfect for applications where frequent maintenance is possible.
Technical Advantages:
- Enables free lubricant circulation
- Provides smooth, low-friction rotation
- Suitable for lightweight to medium-load applications
- Cost-effective solution for precision movement
Whether you're building a remote-controlled model, maintaining power tools, or developing a precision mechanical system, the 623 Budget Open Miniature Ball Bearing offers reliable performance in a compact package.