R0
R Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
R0
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.1 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.046875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.15625"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0625"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.0236"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
21 lbf
Radial static load rating
6 lbf
Limiting speed
110 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.00008" to 0.0005"
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:
$ 13.72
/ each
In Stock
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R0 Bearing Product Overview & Core Advantages
The R0 series represents a high-precision miniature ball bearing engineered for demanding applications requiring exceptional dimensional stability and reliable performance. As an open single row deep groove ball bearing, it is specifically designed to handle primarily radial loads efficiently. Its compact design, characterized by a small bore diameter of 0.046875", makes it an ideal solution for space-constrained assemblies in high-speed and precision instruments. Manufactured to ABEC1 tolerance standards, this bearing ensures consistent operation and is a cornerstone component for applications demanding high reliability and rotational accuracy.
R0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| R0 | Series designation for a specific size of miniature, inch-series deep groove ball bearing. |
| Open | No integral seals or shields, allowing for higher limiting speeds and custom lubrication schemes. |
| ABEC1 | Tolerance class defining precision levels for bore, outside diameter, and width, ensuring predictable performance. |
| MC3 | Specifies the radial internal clearance group (0.00008" to 0.0005"), optimized for general operating conditions. |
R0 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The stainless steel cage and open design minimize friction and drag, enabling a high limiting speed of 110,000 rpm. This makes it suitable for demanding high-speed applications.
- Robust Load Capacity: Engineered with a dynamic load rating of 21 lbf and a static load rating of 6 lbf, this bearing provides reliable support for radial loads in compact assemblies.
- Precision Engineering: Manufactured from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and dimensional stability, contributing to long service life and consistent performance under the specified temperature range of -86 to 230 °F.
- Optimized Internal Geometry: With 7 balls of 0.0236" diameter, the design ensures smooth rotation and effective load distribution, which is critical for minimizing vibration and noise in precision mechanisms.
R0 Bearing Typical Application Areas
This R0 miniature bearing is ideally suited for a wide range of precision equipment and devices, including:
- Small Precision Motors and Stepper Motors
- Medical and Dental Handpieces
- Optical Encoders and Precision Instruments
- Small Fans and Blowers
- Office Automation Equipment (e.g., printers, scanners)
- Robotics and Miniature Actuators
