MR95zz
MR Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
MR95zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.58 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
9 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.2 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
82 lbf
Radial static load rating
30 lbf
Limiting speed
50 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.002mm to 0.013mm
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Shield material
300 Series Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.13
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
MR95zz Bearing Product Overview & Core Advantages
The MR95zz is a metric miniature ball bearing engineered for applications demanding compact size and reliable performance. As a single row deep groove ball bearing, it is primarily designed to support radial loads efficiently. Its construction offers a robust solution for high-speed operation, with a limiting speed of 50,000 rpm. The inclusion of shielded seals on both sides helps retain lubrication and exclude contaminants, enhancing service life. This bearing is characterized by its precision ABEC1 tolerance class and is an ideal component for compact assemblies requiring smooth, continuous rotation.
MR95zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| MR95 | Specifies the bearing series and size. 'MR' typically denotes a metric miniature radial ball bearing. The number '95' defines the specific bore and outside diameter dimensions (5mm bore, 9mm OD). |
| zz | Indicates that the bearing is shielded on both sides (non-contact type). This protects the internal components from particulate contamination while minimizing friction, making it suitable for high-speed applications. |
MR95zz Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage and optimized internal geometry allows for a very high limiting speed of 50,000 rpm, making it an excellent high-speed bearing.
- Robust Load Handling: The deep groove raceway and chrome steel construction enable it to carry significant radial dynamic loads (82 lbf) and radial static loads (30 lbf) for its size.
- Precision & Smooth Operation: Manufactured to ABEC1 precision class with a controlled radial internal clearance (MC3 group), this bearing ensures low noise and vibration, contributing to smooth rotational performance.
- Durability & Corrosion Resistance: The use of 300 series stainless steel shields and a stainless steel cage provides enhanced resistance to corrosion in demanding environments.
- Compact and Lightweight: With dimensions of just 5x9x3 mm and a weight of only 0.58 grams, it is designed for space-constrained and weight-sensitive applications.
MR95zz Bearing Typical Application Areas
This miniature bearing is widely used in precision devices and high-speed machinery, including:
- Small DC Motors and Stepper Motors
- Precision Instruments and Optical Encoders
- Computer Cooling Fans (FAN)
- Medical Devices and Dental Handpieces
- Radio-Control Models and Drones
- Office Automation Equipment (e.g., printers, scanners)
