305338 D
Double Row Angular Contact Ball Bearings
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Part No.
Part No.
305338 D
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
11 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
190 mm
Bore diameter tolerance
-0.022mm to 0
Outside diameter
269.5 mm
Outside diameter tolerance
-0.025mm to 0
Width
66 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
2.1 mm
Distance from side face to load point
177 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
218 mm
Outer Ring Dimensions
Shoulder diameter outer ring
249.8 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
60750 lbf
Radial static load rating
93375 lbf
Limiting speed
2.4 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:
$ 619.86
/ each
In Stock
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305338 D Bearing Product Overview & Core Advantages
The 305338 D is a double row angular contact ball bearing designed for demanding applications requiring high precision and rigidity. This metric bearing excels at simultaneously handling combined radial and axial loads from both directions, making it an ideal choice for compact, high-performance machinery. Manufactured to a P6 (ABEC-3) tolerance class, it ensures reliable operation and precise rotational accuracy. Its robust construction and optimized internal geometry contribute to its high load-carrying capacity and stable performance under challenging conditions.
305338 D Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Significance |
|---|---|---|
| D | Double Row | Indicates the bearing has two rows of balls, providing high rigidity and increased load capacity compared to single row designs. |
| (No Seal Suffix) | Open Seal Type | The bearing is supplied without integral seals, allowing for optimal lubrication configurations and suitability for high-speed applications where minimal friction is critical. |
305338 D Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and a contact angle of 40° provide exceptional rigidity, enabling the bearing to support significant combined loads (radial and bidirectional axial loads) with minimal deflection.
- Precision & High-Speed Capability: Manufactured to P6 tolerance and featuring a lightweight, durable stainless steel cage, the bearing ensures smooth operation and is capable of achieving a limiting speed of 2,400 rpm.
- Robust Material Construction: Both the rings and balls are made from high-grade chrome steel, offering excellent wear resistance and fatigue life, contributing to long-term reliability.
- Optimized Lubrication: The bearing is supplied lubricated, ready for immediate use and ensuring optimal performance from initial startup within its specified temperature range of -30°C to 110°C.
305338 D Bearing Typical Application Areas
This bearing is engineered for high-performance industrial equipment, including:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Gearboxes and Power Transmission Systems
- Precision Industrial Machinery
