MR137 2rs
MR Series Miniature Bearings
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Part No.
Part No.
MR137 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2.01 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
13 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.2 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
104 lbf
Radial static load rating
50 lbf
Limiting speed
40 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
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:
$ 1.13
/ each
In Stock
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MR137 2rs Bearing Product Overview & Core Advantages
The MR137 2RS is a metric single row deep groove ball bearing designed for reliable performance in compact spaces. Its sealed construction with nitrile rubber contact seals (2RS) provides excellent protection against contaminants and retains lubrication, making it suitable for applications demanding low maintenance and long service life. Engineered from chrome steel with an ABEC1 tolerance class, this bearing offers a robust solution for handling radial loads efficiently while operating within a wide temperature range.
MR137 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| MR137 | Standard bearing designation indicating specific bore diameter (7 mm), outside diameter (13 mm), and width (4 mm) dimensions. |
| 2RS | Signifies double-sided contact seals made of Nitrile Rubber (NBR). This provides superior sealing effectiveness compared to non-contact shields, protecting against dust and moisture ingress while retaining grease. |
MR137 2rs Bearing Structural Features & Performance Benefits
- Robust Load Capacity: The single row deep groove raceway and complement of 12 precision balls enable efficient handling of the specified radial dynamic load rating and radial static load rating.
- Sealed & Pre-Lubricated Design: The integral 2RS seals and factory-applied lubrication create a maintenance-free system for the bearing's operational life in many environments, reducing total cost of ownership.
- Precision & Stability: Manufactured to ABEC1 precision tolerances with a controlled MC3 radial internal clearance, ensuring consistent performance, smooth operation, and reduced vibration.
- Corrosion Resistance: The stainless steel cage provides excellent corrosion resistance, contributing to the bearing's durability and reliability in various operating conditions.
MR137 2rs Bearing Typical Application Areas
This versatile bearing is ideal for a wide range of small, motorized, and precision devices, including:
- Small Electric Motors and Gearboxes
- Office Automation Equipment (Printers, Scanners)
- Medical Devices and Instrumentation
- Computer Cooling Fans
- Textile Machinery Components
- Low-Power Drone Motors and Actuators
