MR104 2rs
MR Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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MR104 2rs Bearing Product Overview & Core Advantages
The MR104 2rs is a metric single row deep groove ball bearing designed for reliable performance in compact applications. Engineered with sealed construction, it effectively protects against contaminant ingress, extending service life. This bearing is characterized by its ability to handle primarily radial loads and is manufactured to ABEC1 precision tolerances, ensuring smooth operation and consistent performance. Its small footprint, with a 4mm bore and 10mm outside diameter, makes it an ideal choice for applications where space is at a premium and dependable radial support is required.
MR104 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| MR104 | Basic bearing designation. | Indicates a metric, single row deep groove ball bearing with a 4mm bore, 10mm OD, and 4mm width. |
| 2RS | Contact seal on both sides. | Features Nitrile Rubber (NBR) seals that provide superior protection against dust and moisture, retaining lubricant effectively for reduced maintenance needs. |
MR104 2rs Bearing Structural Features & Performance Benefits
Robust Construction for Radial Load Capacity: Built with chrome steel rings and balls, the MR104 2rs offers a dependable radial dynamic load rating of 136 lbf and a static load rating of 49 lbf, ensuring durability under load.
Optimized Internal Geometry: The bearing incorporates 8 precision balls and a stainless steel cage, which maintains ball spacing and alignment for smooth, low-vibration operation at its limiting speed of 48,000 rpm.
Effective Sealing and Lubrication: The 2RS contact seals are critical for applications requiring protection from contaminants. The standard MC3 radial internal clearance (0.002mm to 0.013mm) is suitable for most general applications, providing optimal performance within the specified temperature range of -30°C to 110°C.
MR104 2rs Bearing Typical Application Areas
The MR104 2rs is widely used in various small precision mechanisms and devices, including:
- Small Electric Motors (e.g., in power tools, drones, cooling fans)
- Precision Instruments and Gauges
- Office Automation Equipment (printers, scanners)
- Medical Devices and Laboratory Equipment
- Radio-Controlled Models and Hobbyist Applications
