1203
1200 Series Self Aligning Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
1203 Bearing Product Overview & Core Advantages
The 1203 metric double row ball bearing represents a compact, high-performance solution for applications requiring robust radial load capacity within limited space constraints. Engineered with precision construction, this bearing features an open design and is pre-lubricated for immediate installation and reliable operation. Its double row ball configuration provides enhanced rigidity and load distribution compared to single row alternatives, making it suitable for applications demanding smooth rotational performance and dimensional stability.
1203 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1203 | Standard metric series designation indicating bearing dimensions (17mm bore, 40mm OD) |
| Open | No seals or shields, allowing for maximum speed capability and relubrication access |
| CN | Normal radial internal clearance for standard operating conditions |
| Lubricated | Factory-pre-lubricated for immediate operation and initial protection |
1203 Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The double row angular contact design provides superior radial stiffness and load distribution, effectively handling substantial radial dynamic loads up to 1989 lbf while maintaining dimensional stability under stress.
Optimized High-Speed Performance: Featuring a lightweight nylon cage that reduces centrifugal forces and maintains ball alignment at limiting speeds up to 24,000 rpm. The open construction minimizes friction and heat generation during high-speed operation.
Precision Engineering: Manufactured from chrome steel for both rings and balls, ensuring consistent hardness and wear resistance. The tight dimensional tolerances on bore diameter and outside diameter guarantee precise fit and reliable performance in precision applications.
Versatile Temperature Range: Suitable for operation within -30°C to 110°C, accommodating various industrial environments while maintaining performance characteristics.
1203 Bearing Typical Application Areas
- Electric Motors & Generators: Ideal for small to medium-sized motors requiring reliable high-speed operation and radial load support
- Power Tools & Handheld Equipment: Compact bearing dimensions and robust construction suit demanding tool applications
- Industrial Pumps & Compressors: Handles radial loads in pump shafts and compressor assemblies effectively
- Material Handling Systems: Conveyor rollers and pulley systems benefit from the bearing's load capacity and durability
- Precision Instruments & Medical Devices: The smooth operation and precise tolerances make it suitable for sensitive equipment
