305286 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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305286 D Bearing Product Overview & Core Advantages
The 305286 D is a double row angular contact ball bearing engineered for high-performance applications requiring superior rigidity and the ability to handle combined loads. This precision bearing is designed to simultaneously support significant radial loads and axial loads in both directions. Its open design allows for versatile lubrication options, while the P6 (ABEC-3) tolerance class ensures high running accuracy, making it an ideal choice for demanding, high-reliability machinery.
305286 D Bearing Model Code Explained, Specifications & Naming Convention
The model number 305286 D provides specific technical information:
- 305286: The base designation, indicating the bearing's core dimensions (150mm bore, 225mm OD, 73mm width).
- D: This suffix signifies that the bearing features a double row construction, providing high radial and axial rigidity.
Notable features from the specification include an open seal type for custom lubrication and a stainless steel cage for durability and corrosion resistance.
305286 D Bearing Structural Features & Performance Benefits
The design of the 305286 D delivers distinct performance advantages:
- High Rigidity & Load Capacity: The double row ball complement and optimized internal geometry provide exceptional stiffness, enabling the bearing to handle high combined loads (radial and bidirectional axial loads) with a radial dynamic load rating of 40,950 lbf and a radial static load rating of 59,625 lbf.
- Precision & Speed: Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures smooth, precise operation. The stainless steel cage contributes to stable performance at the specified limiting speed.
- Material Integrity: Constructed from chrome steel for both rings and balls, the bearing offers high load capacity and wear resistance, suitable for a temperature range of -30°C to 110°C.
305286 D Bearing Typical Application Areas
The 305286 D is well-suited for a range of industrial applications where high rigidity and precision are paramount. Key sectors include:
- Machine Tool Spindles
- Industrial Gearboxes
- Heavy-Duty Pumps and Compressors
- Material Handling Equipment
- Precision Industrial Machinery
