SMR85 2rs
SMR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SMR85 2rs Bearing Product Overview & Core Advantages
The SMR85 2RS is a metric, sealed, single row deep groove ball bearing engineered for precision and reliability in compact applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its primary advantage lies in its ability to handle radial loads efficiently while its sealed design, featuring two low-friction Nitrile rubber contact seals (2RS), protects against contamination and retains lubrication. This makes it an ideal, long-lasting component for applications demanding high limiting speeds and consistent performance in various environments.
SMR85 2rs Bearing Model Code Explained, Specifications & Naming Convention
- SMR85: Denotes the bearing series and size (8mm OD, 5mm Bore, 2.5mm Width).
- 2RS: Indicates the bearing is equipped with two (2) integral contact seals (RS) made of Nitrile rubber, providing effective protection from contaminants and grease loss.
SMR85 2rs Bearing Structural Features & Performance Benefits
Robust Construction: The all-stainless-steel build, including a stainless steel cage, ensures high corrosion resistance and durability, suitable for a wide temperature range from -30°C to 110°C.
Radial Load Capacity: Designed primarily for radial loads, this bearing offers reliable performance with a dynamic load rating of 37 lbf and a static load rating of 15 lbf.
High-Speed Operation: The optimized design and ABEC1 precision class contribute to a high limiting speed of 47,700 rpm, making it suitable for high-speed applications.
Sealed & Protected: The two Nitrile rubber contact seals (2RS) effectively shield the internal components from dust, moisture, and other contaminants, while retaining the necessary lubrication for extended service life, reducing maintenance needs.
Precision Internal Clearance: Features a MC3 radial internal clearance (0.002mm to 0.013mm), ensuring smooth operation and optimal performance under specified load and speed conditions.
SMR85 2rs Bearing Typical Application Areas
This bearing is commonly used in applications requiring a compact, corrosion-resistant, and high-speed solution. Typical fields include:
- Small Precision Electric Motors
- Medical and Dental Handpieces
- Optical Encoders and Instrumentation
- Office Automation Equipment (e.g., printers, scanners)
- Radio Control Models and Miniature Machinery
