MR148zz
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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MR148zz Bearing Product Overview & Core Advantages
The MR148zz is a metric miniature ball bearing designed for precision applications requiring compact dimensions and reliable performance. This single row deep groove ball bearing features integral shielded protection, making it suitable for high-speed operation up to 38,000 rpm. Its chrome steel construction provides excellent durability and wear resistance, while the standard ABEC1 tolerance ensures consistent performance for radial load applications where space is at a premium.
MR148zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| MR | Miniature Bearing Series | Compact design for space-constrained applications |
| 148 | Bore: 8mm, OD: 14mm, Width: 4mm | Standard bearing dimensions for easy integration |
| zz | Double Shields (Both Sides) | Contaminant protection while maintaining high-speed capability |
MR148zz 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.
Stainless Steel Shield & Cage: The 300 series stainless steel components provide corrosion resistance and ensure cage integrity during high-speed rotation, contributing to the bearing's 38,000 rpm limiting speed.
Precision Manufacturing: With ABEC1 tolerance and MC3 radial internal clearance (0.002-0.013mm), this bearing delivers consistent performance and smooth operation in precision mechanisms.
Material Excellence: Chrome steel rings and balls combined with stainless steel cage offer optimal strength-to-weight ratio and extended service life under demanding conditions.
MR148zz Bearing Typical Application Areas
- Small Motors & Spindles: DC motors, stepper motors, and precision spindles requiring compact high-speed bearings
- Office Equipment: Printers, scanners, and copiers where reliable miniature bearings are essential
- Medical Devices: Surgical tools, dental handpieces, and laboratory equipment demanding precision and reliability
- Robotics & Automation: Small robotic joints, linear actuators, and positioning systems
- Instrumentation: Measuring devices, optical equipment, and precision instruments requiring smooth rotational performance
