61902-2Z
618 & 619 Series Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
61902-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.016 kg
Tolerance class
P6
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.008mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
980 lbf
Radial static load rating
504 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 8.98
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
61902-2Z Bearing Product Overview & Core Advantages
The 61902-2Z is a metric single row deep groove ball bearing designed for high-performance applications requiring compact design and reliable operation. This shielded bearing excels in handling radial loads efficiently while offering protection from contaminant ingress. Manufactured to a P6 tolerance class, it provides high precision and consistent performance, making it an ideal component for applications demanding dimensional accuracy and operational reliability.
61902-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61902 | Basic bearing series designation, indicating a deep groove ball bearing with a 15mm bore and 28mm outside diameter. |
| 2Z | Signifies that the bearing is equipped with shields on both sides. This provides effective protection against coarse contaminants while allowing for higher rotational speeds compared to contact seals. |
61902-2Z Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P6 tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring precise fit and stable operation.
- Optimized Load Capacity: The single row deep groove construction is engineered to carry significant radial dynamic loads (980 lbf) and moderate axial loads in both directions.
- Enhanced Durability & Speed: The combination of a stainless steel cage and pre-lubrication with grease contributes to a high limiting speed (28,000 rpm), reduced friction, and stable operation at high rotational velocities.
- Maintenance-Free Operation: The Z-shields retain the factory-applied grease and protect the internal components from dust and debris, enabling long service life without re-lubrication in many applications.
- Material Integrity: Components made from chrome steel (rings and balls) offer high hardness and wear resistance, suitable for a wide operating temperature range from -30°C to 120°C.
61902-2Z Bearing Typical Application Areas
- Small Electric Motors (e.g., for power tools, household appliances, cooling fans)
- Precision Instruments and medical devices
- Office Automation Equipment (e.g., printers, scanners, copiers)
- Idler Pulleys and guide rollers in light machinery
- Various low-torque, high-speed mechanical drives
