MR52 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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MR52 2rs Bearing Product Overview & Core Advantages
The MR52 2RS is a miniature deep groove ball bearing engineered for compact, high-precision applications. This metric bearing features a single row design and is sealed on both sides (2RS), making it an ideal solution for applications requiring protection from contaminants. Its primary advantage lies in its ability to handle radial loads efficiently within a minimal space envelope, offering reliable performance and long service life in demanding conditions.
MR52 2rs Bearing Model Code Explained, Specifications & Naming Convention
| MR52 | Standard designation for a miniature bearing series with a 2 mm bore and 5 mm outside diameter. |
| 2RS | Indicates the bearing is fitted with contact seals on both sides, manufactured from Nitrile Rubber (NBR). This provides excellent protection against dust and moisture ingress, retaining lubrication effectively. |
MR52 2rs Bearing Structural Features & Performance Benefits
Compact and Lightweight Design: With dimensions of just 2mm (bore) x 5mm (OD) x 2.5mm (width) and a weight of only 0.14g, this bearing is perfect for space-constrained applications like small motors and precision instruments.
Robust Construction: Manufactured from chrome steel rings and balls with a stainless steel cage, the MR52 2RS offers high durability and corrosion resistance. The contact seals (2RS) ensure the integrity of the internal lubricant, contributing to a maintenance-free operational life.
Precision and Speed: Built to ABEC1 tolerance class and featuring a standardized MC3 radial internal clearance (0.002mm to 0.013mm), this bearing provides smooth and quiet operation at limiting speeds up to 85,000 rpm.
MR52 2rs Bearing Typical Application Areas
The MR52 2RS is widely used in applications demanding small size, reliability, and sealed operation. Key industries and equipment include:
- 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
- Miniature Gearboxes and Mechanisms
