Bearings
Ball Bearings
Miniature Bearings
Quick Code: BB-382770
638-ZZ Budget Shielded Miniature Ball Bearing 8mm x 28mm x 9mm
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Product Specification
Brand
Budget
Inside Dia
8mm
Outside Dia
28mm
Sealing
Shielded
Width
9mm
Reference
638-ZZ, 638-2Z
Quick Order Code
BB-382770
Product Description
The 638-ZZ Budget Shielded Miniature Ball Bearing is a precision engineering solution designed for compact mechanical applications requiring reliable, low-friction rotational movement. With its robust 8mm x 28mm x 9mm dimensions, this miniature bearing offers exceptional performance in various demanding environments.
Key Features:
- Deep groove single row configuration for smooth, consistent rotation
- Metal shielded design prevents dust and contaminant entry
- Pre-charged with high-quality lubricating grease
- Compact and versatile bearing solution
- Robust construction for extended operational life
Common Applications:
- Power tools and handheld electronic devices
- Remote-controlled hobby vehicles (cars, boats, planes)
- Skateboard and roller blade wheel assemblies
- Small robotics and model engineering projects
- Precision miniature mechanical systems
- Hobby and DIY electronics
Technical Specifications:
- Inside Diameter: 8mm
- Outside Diameter: 28mm
- Width: 9mm
- Sealing Type: Shielded (ZZ)
- Reference Number: 638-ZZ-NEU
- Brand: Budget
The sealed construction helps preserve internal lubrication, extending the bearings operational lifespan and maintaining consistent performance. Its versatility and moderately easy maintenance make it an ideal solution for applications requiring precise, low-friction rotational movement in compact mechanical systems.

