R4ZZST
R Series & EE Series Single Row Deep Groove Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
R4ZZST
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.00031" to 0
Outside diameter
0.625"
Outside diameter tolerance
-0.00031" to 0
Width
0.196"
Width tolerance
-0.00472" to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
283 lbf
Radial static load rating
112 lbf
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 5.82
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
R4ZZST Bearing Product Overview & Core Advantages
The R4ZZST is a precision miniature ball bearing designed for applications requiring compact dimensions and reliable performance. As a single row deep groove ball bearing with shielded construction, it excels at handling radial loads efficiently. Manufactured to ABEC 1 precision (ISO P0), it offers consistent operation and is ideal for high-speed scenarios where space is limited. Its inch-series dimensions make it a standard component in numerous precision mechanisms.
R4ZZST Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| R4 | Indicates a specific series of miniature, inch-size bearings. |
| ZZ | Signifies that the bearing is equipped with shields on both sides. This provides protection against contamination from solid particles. |
| ST | Denotes that the bearing is supplied without lubrication (non-greased), allowing for application-specific lubricant selection. |
R4ZZST Bearing Structural Features & Performance Benefits
- Robust Construction: Built entirely from chrome steel for rings, balls, and cage, ensuring high strength, durability, and resistance to wear.
- Effective Contamination Protection: The double-shielded (ZZ) design effectively seals the bearing, retaining any subsequently added lubricant and protecting the internal raceways from dust and debris, which is critical for longevity.
- Precision & High-Speed Capability: Manufactured to ABEC 1 tolerance standards with a standard CN radial internal clearance, this bearing ensures smooth, low-vibration operation suitable for high rotational speeds.
- Application Flexibility: Being supplied non-lubricated provides engineers with the flexibility to apply a specialized lubricant that best suits the specific operating temperature, speed, and environmental conditions of their application.
R4ZZST Bearing Typical Application Areas
The R4ZZST is widely used in compact and precision-driven industries, including:
- Small Electric Motors and stepper motors
- Precision Instruments and optical devices
- Office automation equipment such as printers and scanners
- Medical devices and dental handpieces
- Radio-control models and small gearboxes
