SMR104zz
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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SMR104zz Bearing Product Overview & Core Advantages
The SMR104zz is a metric miniature ball bearing designed for precision applications requiring reliable performance in compact spaces. As a single row radial ball bearing with stainless steel construction and integral shields, it delivers excellent corrosion resistance and consistent operation. Its primary advantages include handling radial loads efficiently while maintaining smooth rotation at moderate speeds. The bearing is engineered for applications demanding high precision and durability within a compact bearing size (4mm bore × 10mm OD × 4mm width), making it ideal for instruments and small mechanisms where space is constrained and reliability is critical.
SMR104zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMR | Manufacturer series designation for miniature stainless steel bearings |
| 104 | Bore size code (4mm bore diameter) |
| zz | Double-sided metal shields providing effective contamination protection while maintaining low friction operation |
SMR104zz Bearing Structural Features & Performance Benefits
Superior Material Construction: Manufactured entirely from stainless steel (rings, balls, cage, and shields), providing excellent corrosion resistance and suitability for harsh environments.
Optimized Load Capacity: The single row design with 8 precision balls (1.588mm diameter) delivers reliable radial load handling (122 lbf dynamic rating) while maintaining minimal friction.
Precision Performance: Built to ABEC1 tolerance class with controlled radial internal clearance (MC3: 0.002-0.013mm) ensuring consistent running accuracy and smooth operation.
Protected Operation: The double-shielded (zz) design effectively excludes contaminants while retaining lubrication, extending service life in demanding conditions.
Temperature Compatibility: Operating range of -30°C to 110°C accommodates various environmental conditions while maintaining dimensional stability.
SMR104zz Bearing Typical Application Areas
- Precision instruments and measuring devices
- Small motors and miniature drives
- Medical equipment and dental handpieces
- Office automation equipment and printers
- Robotic joints and miniature mechanisms
- Optical equipment and lens positioning systems
- Electronic devices requiring quiet operation
