638/5-2Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
638/5-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0018 kg
Tolerance class
P6
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
11 mm
Outside diameter tolerance
-0.007mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
105 lbf
Radial static load rating
32 lbf
Limiting speed
60 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 3.51
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
638/5-2Z Bearing Product Overview & Core Advantages
The 638/5-2Z is a metric single row deep groove ball bearing designed for exceptional performance in compact, high-precision applications. Engineered with shielded protection (2Z) and pre-lubricated with grease, it offers reliable operation and is effectively maintenance-free. Its optimized design provides robust radial load capacity and smooth operation at moderate speeds, making it an ideal choice for applications demanding high reliability and long service life in a minimal footprint.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 638 | Standard series designation for deep groove ball bearings. |
| 5 | Bore diameter of 5 mm. |
| 2Z | Bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while minimizing friction and heat generation. |
638/5-2Z Bearing Structural Features & Performance Benefits
- Optimized Radial Load Capacity: The single row deep groove raceway and high-grade chrome steel construction are engineered to handle significant radial loads (105 lbf dynamic, 32 lbf static) efficiently.
- Shielded & Pre-Lubricated Design: The 2Z shields protect the internal components from dust and debris, while the factory-applied grease lubrication ensures immediate, maintenance-free operation, enhancing service life.
- High-Speed Stability: The lightweight, durable stainless steel cage maintains ball alignment and stability, contributing to smooth operation up to the limiting speed of 60,000 rpm.
- Precision & Rigidity: Manufactured to P6 tolerance class and standard CN radial internal clearance, this bearing provides precise running accuracy and consistent performance for demanding applications.
638/5-2Z Bearing Typical Application Areas
- Small Electric Motors and Gearboxes
- Precision Instruments and Optical Devices
- Office Automation Equipment (e.g., Printers, Scanners)
- Medical Devices and Dental Handpieces
- Robotics and Small Drone Mechanisms
- Computer Cooling Fans and Spindles
