MR104zz
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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MR104zz Bearing Product Overview & Core Advantages
The MR104zz is a metric single row deep groove ball bearing designed for high-performance applications requiring compact design and reliable operation. Featuring shielded construction (zz), it provides effective contamination protection while maintaining low friction. Manufactured to ABEC1 precision standards with chrome steel rings and balls, this bearing delivers consistent performance under radial loads with a limiting speed of 48,000 rpm. Its optimized internal geometry and stainless steel cage ensure smooth operation and extended service life in demanding environments.
MR104zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| MR104 | Basic bearing designation with 4mm bore, 10mm OD, 4mm width | Compact dimensions for space-constrained applications |
| zz | Double shielded construction on both sides | Enhanced contamination protection and pre-lubricated maintenance |
MR104zz Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway design enables efficient handling of radial loads while accommodating moderate axial loads in both directions.
Shielded Protection: Double 300 series stainless steel shields provide effective sealing against contaminants while minimizing friction compared to contact seals.
Precision Construction: Manufactured to ABEC1 tolerance class with MC3 radial clearance (0.002-0.013mm) ensuring consistent performance and smooth operation.
High-Speed Capability: The stainless steel cage and optimized internal design support operation at 48,000 rpm limiting speed.
Material Excellence: Chrome steel rings and balls provide excellent wear resistance and durability, while the stainless steel cage offers corrosion resistance.
MR104zz Bearing Typical Application Areas
- Small precision motors and miniature DC motors
- Office automation equipment including printers and scanners
- Medical devices and laboratory equipment requiring quiet operation
- Instrumentation and measuring devices
- Robotics and small automation mechanisms
- Computer peripherals including cooling fans and disk drives
- Optical systems and positioning devices
