MR82x 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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MR82x 2rs Bearing Product Overview & Core Advantages
The MR82x 2RS is a miniature deep groove ball bearing designed for applications requiring compact dimensions and reliable performance. This metric bearing features a single-row design with integral rubber seals (2RS) on both sides, providing effective protection against contamination. Engineered to handle primarily radial loads, it is characterized by its small bore diameter of 2.5 mm and overall compact profile. Manufactured with chrome steel rings and balls, and a stainless steel cage, it offers a robust solution for high-speed operation up to 60,000 rpm, making it ideal for precision instruments and small machinery where space is at a premium and reliability is critical.
MR82x 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| MR82x | Indicates the bearing series, defining the core dimensions (8mm OD, 2.5mm width). |
| 2RS | Signifies that the bearing is equipped with Rubber Seals (RS) on both sides (2). This provides superior protection against dust and moisture compared to metal shields. |
MR82x 2rs Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a width of just 2.5 mm and a weight of 0.52 g, this bearing is engineered for applications with severe space and weight constraints.
- Effective Sealing: The Nitrile Rubber (NBR) seals (2RS) effectively retain lubricant and exclude contaminants, enhancing bearing service life in demanding environments. The bearing requires initial lubrication for operation.
- High-Speed Capability: The combination of a stainless steel cage and precision ABEC1 tolerance class enables a high limiting speed of 60,000 rpm, suitable for demanding rotary applications.
- Robust Load Capacity: Manufactured from chrome steel, it offers a dynamic load rating of 107 lbf and a static load rating of 32 lbf, providing reliable performance under radial loads.
- Standard Internal Clearance: The MC3 radial internal clearance (0.002mm to 0.013mm) is suitable for a wide range of general operating conditions.
MR82x 2rs Bearing Typical Application Areas
- Small Precision Motors (e.g., in drones, RC models)
- Medical and Dental Handpieces
- Office Automation Equipment (e.g., small printers, scanners)
- Instrumentation and Control Devices
- Small Fans and Pumps
