SMR82x
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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SMR82x Bearing Product Overview & Core Advantages
The SMR82x series represents a miniature deep groove ball bearing engineered for precision applications requiring compact dimensions and reliable performance. This single row radial bearing features an open design that facilitates optimal lubrication while maintaining exceptional dimensional stability. Constructed entirely from stainless steel components, it offers excellent corrosion resistance and is ideal for applications demanding high rotational accuracy and consistent operation across a temperature range of -30° to 110°C. Its compact bearing size (2.5 mm bore, 8 mm OD) makes it particularly suitable for space-constrained assemblies.
SMR82x Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMR82x | Series designation for miniature deep groove ball bearings |
| Open | No seals or shields, allowing for custom lubrication schemes |
| ABEC1 | Standard tolerance class ensuring consistent dimensional accuracy |
| MC3 | Radial internal clearance group (0.002mm to 0.013mm) |
SMR82x Bearing Structural Features & Performance Benefits
Optimized Load Capacity: The deep groove raceway design enables efficient handling of radial loads (96 lbf dynamic, 29 lbf static) while accommodating moderate axial loads in both directions. The precisely calculated ball quantity (6 balls) and ball diameter (1.588 mm) ensure optimal stress distribution.
Precision Engineering: Manufactured to ABEC1 tolerance class with tight dimensional control (bore/OD tolerance: -0.008mm to 0), this bearing delivers consistent rotational accuracy. The MC3 radial clearance provides optimal internal fit for various operating conditions.
Material Excellence: All components including rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and durability in challenging environments.
High-Speed Capability: With a limiting speed of 54,000 rpm, this bearing is engineered for high-speed applications while maintaining stable operation and minimal vibration.
SMR82x Bearing Typical Application Areas
- Precision instruments and measuring devices
- Small motors and miniature drive systems
- Medical devices and dental handpieces
- Office automation equipment and printers
- Robotics and miniature automation systems
- Optical positioning systems and encoders
