305269 D
Double Row Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
305269 D
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
33.2 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
280 mm
Bore diameter tolerance
-0.025mm to 0
Outside diameter
389.5 mm
Outside diameter tolerance
-0.028mm to 0
Width
92 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Distance from side face to load point
258 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
324.65 mm
Outer Ring Dimensions
Shoulder diameter outer ring
364.45 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
90675 lbf
Radial static load rating
168750 lbf
Limiting speed
1.6 X 1000 rpm
Lubrication
Lubricated
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:
$ 1513.98
/ each
In Stock
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305269 D Bearing Product Overview & Core Advantages
The 305269 D is a metric double row angular contact ball bearing engineered for applications requiring high rigidity and precision. Its double row design enables it to simultaneously handle significant combined loads—both radial and bidirectional axial loads—making it an ideal solution for demanding industrial environments. Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures high running accuracy and reliability. The open design, combined with a stainless steel cage, facilitates effective lubrication management for consistent performance.
305269 D Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| D | Indicates a double row angular contact ball bearing construction. |
| Open | No seals or shields, allowing for customized lubrication systems and high-speed capability. |
305269 D Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing design provides superior radial and axial stiffness, enabling it to support a dynamic load rating of 90,675 lbf and a static load rating of 168,750 lbf. This makes it exceptionally capable of handling combined loads in challenging applications.
- Precision & Speed: Built to a P6 tolerance class, it guarantees high rotational accuracy. The stainless steel cage contributes to stability and allows for a limiting speed of 1,600 rpm, suitable for many precision machinery requirements.
- Durability & Compatibility: Components made from chrome steel (rings and balls) offer excellent wear resistance and fatigue life. The bearing is pre-lubricated and operates effectively within a temperature range of -30°C to 110°C.
- Optimized Geometry: Features like the defined shoulder diameters (OD: 364.45 mm, ID large-side: 324.65 mm) and a 258 mm distance from side face to load point ensure proper mounting and load distribution.
305269 D Bearing Typical Application Areas
This double row angular contact ball bearing is ideally suited for heavy-duty and precision equipment, including:
- Industrial Gearboxes and Power Transmission Systems
- Large Pump and Compressor Shafts
- Machine Tool Spindles and Precision Rotary Tables
- Material Handling Equipment and Construction Machinery
