Roller Bearing Specs: Load Capacity, Size, Friction Coefficient

[gloo]

I am looking for a website or even some good ideas about the capacity of roller bearings

I am especially interested in knowledge of

1. size (diameter) - larger the better
2. load capacity - large load in particular
3. known coefficient of fricition ( some tables say ~ .0012? or even less)
4. examples of where used (i.e crane, shipping container, elevator etc..)


Ideally, i am looking for the existence of a really large load ( over 2000 metric tons?) low coefficient roller bearing. Do they employ these bearings in pulleys and can anyone tell me where they are used (large load pulleys).

 

[Studiot]

Tell us more about your application or project.

I can remember doing failure investigations into bearings carrying the load levels you describe.

Following spectacular failures of these across Europe, they have been generally replaced.

 

[pantaz]

Have you tried any manufacturer's websites? In addition to information online, they typically offer engineering services and/or technical support.

 

[Q_Goest]

I deal with a few bearing manufacturers and I agree with pantaz, you should try specific manufacturer web sites and for bearings that large you should definitely talk to an applications engineer at the company. They can lead you through the entire process of selecting bearings, oil lubrication systems, mounting and bearing maintenance, etc... Of the bearing manufacturers I would highly recommend SKF.
http://www.skf.com/portal/skf/home

 

[alphy]

I would recommend starting your research by looking into industry standards and specifications for roller bearings. Organizations such as the American Society of Mechanical Engineers (ASME) and the International Organization for Standardization (ISO) have established standards for roller bearings that include information on size, load capacity, and friction coefficient.

Additionally, many bearing manufacturers have websites that provide detailed information on their products, including load ratings and friction coefficients. Some manufacturers also offer custom bearing solutions for specific applications, so it may be worth reaching out to them directly for more information on large load and low friction roller bearings.

In terms of specific applications, roller bearings are commonly used in heavy-duty machinery such as cranes, shipping containers, and elevators. They are also used in pulley systems to support large loads. However, the exact specifications and types of bearings used will vary depending on the specific application and requirements.

In your search for a roller bearing with a large load capacity and low friction coefficient, it may be helpful to consult with engineers or experts in the field who have experience with similar applications. They may be able to provide insights on specific bearing types and manufacturers that would be suitable for your needs.

Overall, it is important to thoroughly research and consider all factors, including load capacity, size, and friction coefficient, when selecting a roller bearing for a specific application. By consulting industry standards, manufacturer websites, and experts in the field, you can gather the necessary information to make an informed decision.