305264 D
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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305264 D Bearing Product Overview & Core Advantages
The 305264 D is a double row angular contact ball bearing designed for demanding industrial applications requiring high precision and reliability. This metric bearing features an open design and is manufactured to P6 (ABEC-3) tolerance class, ensuring exceptional running accuracy. Its double row construction provides superior rigidity and enables it to accommodate combined loads—simultaneously handling significant radial loads and axial loads in both directions. Pre-lubricated for immediate use, it offers reliable performance across a wide temperature range from -30°C to 110°C, making it an excellent choice for heavy-duty machinery.
305264 D Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| D | Double Row Construction | Indicates two rows of balls for increased load capacity and rigidity |
| No Seal Suffix | Open Design | Optimized for applications where external sealing is provided or where high-speed operation is critical |
305264 D Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball bearing design provides exceptional stiffness, effectively resisting operational deflections. With a radial dynamic load rating of 78,975 lbf and radial static load rating of 135,000 lbf, it delivers robust performance under substantial combined loads.
Precision Engineering: Manufactured to P6 tolerance class with precise bearing dimensions (230mm bore × 329.5mm OD × 80mm width), this bearing ensures accurate positioning and smooth operation in precision applications.
Optimized Material Selection: Constructed from chrome steel rings and balls with a stainless steel cage, the bearing offers excellent durability and corrosion resistance, maintaining performance in challenging environments.
Speed & Temperature Performance: The open design and precision construction enable operation at limiting speeds up to 2,000 rpm, while the wide temperature range (-30°C to 110°C) ensures reliability across diverse operating conditions.
305264 D Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Heavy Machinery including construction and mining equipment
- Machine Tool Spindles requiring high precision and rigidity
- Large Pumps and Compressors handling significant radial and axial loads
- Material Handling Equipment such as conveyor systems and cranes
- Paper and Steel Mill Machinery operating under heavy load conditions
