BB Series Metric Thin Section Ball Bearings
BB series metric thin section ball bearings are four-point contact ball bearings designed to match the bores and widths of common cross-roller bearings. They offer additional features for design flexibility and can be customized for specific applications.
- Thin cross section
In applications where space is limited, BB series metric thin section bearings offer a very compact design. - Lightweight
BB series bearings can enable significant weight savings, which may result in cost savings for the overall application. - Dimensionally interchangeable with cross-roller bearings
With additional flexibility in design, BB series bearings should be considered as a practical alternative to the use of cross-roller bearings. - Low friction
- High stiffness
- High running accuracy
BB series metric thin section ball bearings are widely used in various industries. The availability matches their versatility across numerous applications in a wide range of designs, variants, and sizes. Examples of applications include:
- Robotics
- General machinery
BB Series Metric Thin Section Ball Bearings - Designs and Variants
Endurakote-coated Bearings
Endurakote-coated bearings are highly durable, corrosion-resistant, and provide an extended service life. They are ideal for use in harsh environments and ensure superior performance in challenging conditions.
Capped Bearings (with Seals or Shields)
Capped bearings offer additional protection against contaminants such as dust and moisture. They are designed with seals or shields, ensuring enhanced reliability and reducing maintenance requirements in various applications.
BB Series Metric Thin Section Ball Bearings Size Chart
| Designation | Base model number | d (mm) | D (mm) | B (mm) | Max radius of shaft or housing fillet (mm) |
|---|---|---|---|---|---|
| KDN.393180001 | BB3010 | 30 | 40 | 10 | 1 |
| KDN.393190015 | BB3510 | 35 | 45 | 10 | 1 |
| KDN.393200001 | BB4010 | 40 | 50 | 10 | 1 |
| KDN.393210001 | BB4310 | 43 | 55 | 13 | 1 |
| KDN.393220001 | BB5013 | 50 | 65 | 13 | 1.5 |
| KDN.393230001 | BB6013 | 60 | 75 | 13 | 1.5 |
| KDN.393240015 | BB7013 | 70 | 85 | 16 | 1.5 |
| KDN.393250015 | BB8016 | 80 | 100 | 16 | 1.5 |
| KDN.393260001 | BB9016 | 90 | 110 | 16 | 1.5 |
| KDN.393270015 | BB10120 | 100 | 120 | 20 | 2 |
| KDN.393280001 | BB11115 | 110 | 130 | 25 | 2 |
| KDN.393290015 | BB12120 | 120 | 145 | 25 | 2.5 |
| KDN.393300001 | BB13125 | 130 | 160 | 25 | 2.5 |
| KDN.393310001 | BB14125 | 140 | 180 | 25 | 2.5 |
| KDN.393320001 | BB15130 | 150 | 200 | 25 | 2.5 |
| KDN.393330015 | BB16130 | 160 | 210 | 30 | 2.5 |
| KDN.393340001 | BB20125 | 200 | 250 | 35 | 3 |
| KDN.393350015 | BB20205 | 200 | 275 | 35 | 3 |
| KDN.393360001 | BB20305 | 200 | 295 | 35 | 3 |
| KDN.393370001 | BB20405 | 200 | 325 | 35 | 3 |
| KDN.393380001 | BB30120 | 300 | 400 | 45 | 3.5 |
| KDN.393390001 | BB30410 | 300 | 425 | 45 | 3.5 |
| KDN.393400015 | BB40130 | 400 | 500 | 45 | 3.5 |
| KDN.393410001 | BB40310 | 400 | 575 | 45 | 3.5 |
| KDN.393420001 | BB50120 | 500 | 650 | 70 | 5 |
| KDN.393430015 | BB50430 | 500 | 700 | 70 | 5 |
| KDN.393440001 | BB60130 | 600 | 800 | 70 | 5 |
| KDN.393450015 | BB60370 | 600 | 850 | 70 | 5 |
| KDN.393460001 | BB70120 | 700 | 900 | 70 | 5 |
| KDN.393470001 | BB70450 | 700 | 950 | 70 | 5 |
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Frequently Asked Questions (FAQs)
Q: How do BB series bearings differ from standard ball bearings?
A: BB series bearings are designed to have thinner cross-sections, which makes them lighter and more compact than standard ball bearings while still providing good load-handling capabilities.
Q: What applications are best suited for BB series metric thin section ball bearings?
A: These bearings are ideal for use in robotics, aerospace, medical equipment, and precision instruments where space and weight are critical factors.
Q: What is the load capacity of BB series thin section ball bearings?
A: Despite their compact size, BB series bearings can handle moderate radial, axial, and combined loads, making them versatile for various high-precision applications.
Q: Can BB series bearings handle axial loads?
A: Yes, BB series bearings are designed to handle both radial and axial loads, making them versatile for applications requiring load support in multiple directions.
Q: What materials are BB series metric thin section ball bearings made from?
A: BB series bearings are typically made from high-grade steel or stainless steel to ensure durability and resistance to corrosion in demanding environments.
Q: What is the typical operating temperature range for BB series bearings?
A: BB series bearings can operate in a wide temperature range, typically from -20°C to +120°C, depending on the specific model and materials used.
Q: How do I maintain BB series thin section ball bearings for optimal performance?
A: Regular lubrication and inspection for signs of wear are key to maintaining the longevity and performance of BB series bearings. Use appropriate lubricants based on the application environment.
Q: Are BB series bearings customizable for specific applications?
A: Yes, manufacturers can offer customization options for BB series bearings, such as specialized coatings, seals, or materials based on your application’s specific requirements.
Q: How do I choose the right BB series bearing for my application?
A: Selection depends on factors like load requirements, speed, operating environment, and space constraints. Consult the manufacturer’s catalog or technical support for guidance on the best option.