R133 2rs
R Series Miniature Bearings
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Part No.
Part No.
R133 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.1 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
0.09375"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.1875"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0937"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.0315"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
28 lbf
Radial static load rating
10 lbf
Limiting speed
80 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
Shield material
Nitrile Rubber
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.23
/ each
In Stock
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R133 2rs Bearing Product Overview & Core Advantages
The R133 2rs is a sealed single row deep groove ball bearing designed for reliable performance in compact applications. Engineered to primarily handle radial loads, this inch-series bearing features integrated rubber seals for contaminant protection and pre-lubrication for simplified installation. Its compact dimensions, high-quality chrome steel construction, and standardized ABEC1 precision make it an ideal, cost-effective solution for applications demanding durability and consistent operation without frequent maintenance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| R133 | Basic bearing designation, indicating a specific inch-size series and bore diameter of 0.09375". |
| 2RS | Signifies that the bearing is equipped with two rubber seals (RS), one on each side. This provides effective protection against dust and moisture ingress while retaining lubricant. |
R133 2rs Bearing Structural Features & Performance Benefits
- Robust Sealing & Contamination Resistance: The dual nitrile rubber seals (2RS) create an effective barrier, making the bearing suitable for environments where dust or minor moisture is present. This contributes to a longer service life and reduced maintenance needs.
- Optimized Load Capacity: As a single row deep groove ball bearing, it is primarily designed for high radial dynamic load ratings (28 lbf), but can also accommodate moderate axial loads in both directions.
- Stable Operation & Precision: Manufactured to ABEC1 tolerance class, it ensures smooth and quiet running, which is essential for consistent performance in precision mechanisms.
- Durable Construction: The combination of chrome steel rings and balls with a stainless steel cage provides excellent wear resistance and mechanical strength, supporting a limiting speed of 80,000 rpm.
- Wide Temperature Range: With an operational range from -86 to 230 °F, this bearing is versatile for use in various environmental conditions.
R133 2rs Bearing Typical Application Areas
- Small precision instruments and gauges
- Miniature motors and gearboxes
- Office automation equipment (e.g., printers, scanners)
- Medical devices and dental handpieces
- Radio-controlled models and drones
- Low-power fans and small pumps
