Bearings
Ball Bearings
Imperial Ball Bearings
Quick Code: BB-517314
R144-2Z ZEN Shielded Deep Groove Ball Bearing 3.175mm x 6.35mm x 2.779mm
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Product Specification
Ball rows
Single row bearing
Bore
Cylindrical bore
Brand
ZEN
Cage
Sheet steel cage
Clearance
Normal radial clearance
Current insulation
No current insulation
Inside Dia
3.175mm = 1/8inch
Material
Standard bearing steel
Material of rolling elements
Standard bearing steel
Outer ring
Without flange/groove
Outside Dia
6.35mm = 1/4inch
Sealing
Shielded
Temperature range
-30 to +150 °C
Tolerance class
Tolerance class P0/PN2 / ABEC 1
Width
2.779mm = 7/64inch
Reference
R144-2Z
Additional Reference:
10127664
Quick Order Code
BB-517314
Product Description
The R144-2Z ZEN Shielded Deep Groove Ball Bearing is a precision-engineered miniature bearing designed for compact and demanding mechanical applications. This ultra-small imperial-sized bearing offers exceptional performance in precision equipment requiring minimal dimensional footprint.
Key Features:
- Ultra-compact imperial dimensions: 1/8" (3.175mm) inside diameter
- Outside diameter: 1/4" (6.35mm)
- Width: 7/64" (2.779mm)
- Single row deep groove ball bearing configuration
- Shielded design for enhanced protection against external contaminants
- Standard bearing steel construction for durability
Technical Specifications:
- Bearing Type: Single row deep groove ball bearing
- Bore Type: Cylindrical bore
- Cage Material: Sheet steel
- Radial Clearance: Normal
- Tolerance Class: P0/PN2 / ABEC 1
- Operating Temperature Range: -30°C to +150°C
Ideal Applications:
- Precision medical devices
- Miniature robotics
- Small electric motors
- Compact scientific instruments
- Model engineering projects
- Micro-mechanical equipment
- Aerospace and defense electronics
The ZEN R144-2Z bearing provides reliable rotational support in extremely space-constrained environments. Its shielded design prevents dust and minor contaminants from entering, while maintaining smooth and consistent performance. The standard bearing steel construction ensures long-lasting durability across various demanding applications.


