13940
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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13940 Bearing Product Overview & Core Advantages
The 13940 is a double row angular contact ball bearing designed for demanding industrial applications requiring high precision and reliability. This precision bearing features an open design and is pre-lubricated, enabling it to handle significant combined loads—both radial and axial forces—simultaneously. Its robust construction and optimized internal geometry contribute to exceptional high rigidity, making it an ideal choice for applications where shaft stability is critical. The generous bearing dimensions (200mm bore, 280mm OD) provide substantial load-carrying capacity within a compact envelope.
13940 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 13940 | Basic Bearing Number | Defines the standard bearing dimensions and internal geometry. |
| Open | No Seal / Shield | Allows for higher speeds and external lubrication systems, reducing friction for high-speed operation. |
| Lubricated | Factory Pre-Lubricated | Ensures immediate operation and initial protection, simplifying installation. |
13940 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and optimized contact angles provide superior stiffness, effectively resisting operational deflections. This design enables a high radial dynamic load rating of 13,612 lbf, making it capable of handling heavy combined loads.
- Optimized for High-Speed Operation: The stainless steel cage ensures low friction and high strength, contributing to a limiting speed of 2,600 rpm. The open design minimizes heat generation from churning lubricant.
- Advanced Lubrication System: The bearing features an annular lubrication groove and lubrication holes on the outer ring (8.3mm groove, 4.5mm hole diameter), facilitating efficient re-lubrication for extended service life in continuous operation.
- Precision Manufacturing: Manufactured from chrome steel for rings and balls, the bearing offers high durability and wear resistance. Strict dimensional tolerances ensure consistent performance and ease of installation.
13940 Bearing Typical Application Areas
This bearing is engineered for robust machinery and systems, including:
- Industrial Gearboxes and heavy-duty transmission systems
- Large Pumps and Compressors
- Material Handling Equipment such as conveyor pulleys
- Construction and Mining Machinery
- Paper and Steel Mill Equipment
