628ZZ bearing stainless steel shielded miniature bearings 628ZZ dimensions 8x24x8mm
628ZZ bearing stainless steel shielded miniature bearings 628ZZ dimensions 8x24x8mm
- 628ZZ bearing 8x24x8mm is a compact, precision miniature ball bearing built for smooth, low-friction performance in high-speed applications.
- This shielded miniature bearing 628ZZ features metal shields (ZZ) fitted into the outer race to help protect against dust and light debris while retaining factory-filled grease for longer service life.
- With a single-row deep-groove design and an uninterrupted raceway, the 628ZZ miniature ball bearing supports radial loads and can also handle a combination of radial and light thrust loads.
- It’s a dependable choice for small motors, motion systems, and hobby/mechanical assemblies where stable rotation and consistent tolerances are required.
Specification
- Bore (Inner Diameter): 8 mm
- Outer Diameter: 24 mm
- Width: 8 mm
- Type: Single row, metal shielded (ZZ)
Features
- Compact 8Ă—24Ă—8mm Size: Designed for compact mechanical assemblies requiring an 8mm bore bearing.
- Deep Groove Design: Provides smooth rotation while supporting radial loads and light axial loads.
- Double Metal Shields (ZZ): Shields on both sides help protect the internal components from dust and small debris.
- Low-Friction Operation: Precision ball construction provides smooth and efficient rotational movement.
- Lubrication Retention: Metal shields help retain grease inside the bearing for consistent operation.
Advantages
- Smooth & Stable Rotation: Helps reduce vibration and resistance in rotating mechanisms.
- Reduced Friction: Improves movement efficiency and minimizes unnecessary wear on shafts and components.
- Better Dust Protection: ZZ metal shields reduce the entry of contaminants compared with open bearings.
- Longer Service Life: Retained lubrication and contamination protection help extend bearing life.
- Low Maintenance: Shielded and pre-lubricated construction reduces the need for frequent servicing.
Application
- Small electric motors (appliances, tools, hobby motors)
- Skateboards (wheel assemblies)
- 3D printers (guide rods, lead screws, motion parts)
- RC vehicles (wheels, drivetrains, motor mounts)
- Fishing reels (smooth spool/rotor motion)
- Office equipment (printers/scanners mechanisms)
- Medical devices (compact motion assemblies)
- DIY/robotics projects (custom mechanisms)
Package Includes
- 1 piece of 628ZZÂ bearing (as per order).











well packaged to ensure safety during transit