3313 DNRCBM
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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3313 DNRCBM Bearing Product Overview & Core Advantages
The 3313 DNRCBM is a double row angular contact ball bearing engineered for applications requiring high precision and robust performance. This metric series bearing is designed to accommodate combined loads (radial and axial loads acting simultaneously) and offers exceptional rigidity due to its double row construction. Manufactured to P6 (ABEC-3) tolerance class, it ensures reliable operation in high-speed and high-accuracy environments. Its open design allows for versatile lubrication options, making it suitable for a wide range of industrial machinery.
3313 DNRCBM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| D | Double Row Design |
| NR | Snap Ring Groove on Outer Ring |
| C | Enhanced Internal Clearance / Contact Angle |
| BM | Brass Cage (Machined) |
3313 DNRCBM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior stiffness and stability, enabling the bearing to support significant radial dynamic load ratings of 31,050 lbf and static load ratings of 27,450 lbf. This makes it ideal for applications with demanding combined loads.
- Precision & High-Speed Performance: Built to a P6 tolerance class and featuring a robust brass cage, the bearing maintains precise alignment and integrity at limiting speeds up to 4,500 rpm.
- Versatile Mounting & Lubrication: The snap ring groove (NR) on the outer ring facilitates secure axial location and simplifies housing design. The open seal type allows for custom lubrication strategies to optimize performance for specific operating conditions within a temperature range of -30°C to 110°C.
- Durable Construction: Components made from chrome steel for rings and balls ensure high durability and long service life under heavy loads.
3313 DNRCBM Bearing Typical Application Areas
The 3313 DNRCBM is widely used in industrial sectors that demand high precision, rigidity, and reliability. Key applications include:
- Machine Tool Spindles
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Precision Agricultural Machinery
