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KOGEL BEARINGS bottom bracket T47 to 30 mm shaft | Road Seals ceramicsThe people at Kogel Bearings believe that high-quality ceramic bearings are the measure of all things for ball bearings in bicy...
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KOGEL BEARINGS bottom bracket T47 to 30 mm shaft | Road Seals ceramics

The people at Kogel Bearings believe that high-quality ceramic bearings are the measure of all things for ball bearings in bicycles.
Silicon nitride has a number of material properties that make it almost perfect for bicycle storage.
The material is extremely hard, wear-resistant, can be shaped into perfectly round balls with minimal tolerances and can be polished more smoothly than any metal. In addition, the material does not rust or corrode in any other way.

The bearing rings are made of hardened steel and polished. This is necessary to create a perfect, smooth tread for the ceramic balls.

Kogel Bearings offers two different types of seals for different applications: Road Seals, a minimal contact seal designed to run as smoothly as possible.
The cross seals, on the other hand, are designed for additional protection against external weather influences: dust, water and mud. It is excellently suited for CX, MTB or racing bike use if a maximum service life is important.

Kogel Bearings is aware that ceramic bearings have a bad reputation for durability. This is mostly due to the suboptimal quality of the bearings being sold as a high one.
A bearing must be designed and manufactured in a balanced way: the degree of hardness of the balls requires that they be combined with equally smooth and hard bearing tracks. Bearing cage, seals and greases must be coordinated to work perfectly.
If one of the components does not fit optimally, it reduces the performance of the entire bearing. The result is increased resistance, a shorter service life or even a total failure of the bearing.

To prove that Kogel Bearings believes in its products, they guarantee that the bearings will run flawlessly for at least 2 years.
If something breaks in the first year, Kogel will repair or replace the product without asking many questions.
Service is required after the first year. If the bearing is serviced by a qualified mechanic, i.e. cleaning, relubrication and replacement of the seals are carried out,
the guarantee is extended by another year.

With this bottom bracket you can use your crank with 30 mm shaft in a frame with T47 standard. It is suitable for case widths of 85.5 mm (TREK) and 86.5 mm.

Technical specifications:

Sealing: Road Seals
intended use : Road
Bearing shell material: aluminum
Material bearing: ceramic hybrid
Bottom bracket type: T47, internal bearing
Bottom bracket shell width: 85.5 mm (Trek) and 86.5 mm
Crank shaft diameter: 30 mm
Bottom bracket housing frame: T47
Compatibility crank: e.g. Easton, BB30 etc.
Camp: Kogel Bearings
Tool holder: Enduro Bearings TorqTite Tool
Color: Black

Weight according to the manufacturer: not specified
Weight weighed: N / A

Scope of delivery: 1x KOGEL BEARINGS bottom bracket T47 to 30 mm shaft | Road Seals ceramics

 Bottom bracket overview Install Bottom Brackets Like a Boss
 Installation manual  Service manual

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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