MR148
MR Series Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
MR148 Bearing Product Overview & Core Advantages
The MR148 is a metric single row deep groove ball bearing designed for high-performance applications requiring reliable operation under radial loads. Engineered with precision components and manufactured to ABEC1 tolerance standards, this bearing offers excellent rotational accuracy and smooth operation. Its compact design, featuring a 3.5 mm width and 1.9 g weight, makes it ideal for space-constrained assemblies. The bearing's optimized internal geometry and high-quality material selection ensure long service life and consistent performance, establishing it as a robust solution for various industrial and precision mechanisms.
MR148 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| MR148 | Standard metric series designation, indicating the bearing dimensions (8mm bore, 14mm OD). |
| Open (Seal Type) | No integral seals or shields. Requires external sealing in contaminated environments but allows for lower operating torque and higher potential speeds. |
| ABEC1 | Tolerance class specifying standard precision levels for bore, OD, and width, ensuring reliable fit and function. |
| MC3 | Specifies the standard radial internal clearance group (0.002mm to 0.013mm) for normal operating conditions. |
MR148 Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The deep groove raceway and 10 high-precision chrome steel balls (1.588 mm diameter) provide excellent radial load capacity (156 lbf dynamic, 70 lbf static) and smooth rotation.
Robust Cage Design: The stainless steel cage ensures proper ball spacing and guidance, contributing to stable operation at the limiting speed of 38,000 rpm.
High-Quality Materials: Both rings and balls are manufactured from chrome steel, offering high hardness, wear resistance, and durability across a temperature range of -30°C to 110°C.
Precision Tolerances: Strict control over bore, OD, and width dimensions guarantees consistent performance and ease of installation in precision assemblies.
MR148 Bearing Typical Application Areas
The MR148 is ideally suited for applications demanding compact size, reliability, and high-speed capability. Common uses include:
- Small Precision Motors and stepper motors
- Office Automation Equipment (printers, scanners, copiers)
- Instrumentation and precision mechanical systems
- Low-torque, high-speed spindles
- Medical devices and miniature gearboxes
