KOGEL BEARINGS bottom bracket PF30 to SRAM DUB | Cross Seals ceramics
The people at Kogel Bearings believe that high quality ceramic bearings are the measure of 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 formed into perfectly round balls with minimal tolerances and can be polished smoother 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 running surface for the ceramic balls.
Kogel Bearings offers two different types of gaskets for different applications: Road Seals, a minimal contact gasket designed to run as lightly as possible.
The Cross Seals, on the other hand, are designed to provide extra protection against external weather: dust, water and mud. It is great for CX, MTB or road bike use when it comes to maximum life.
Kogel Bearings is aware that ceramic bearings have a bad reputation for durability. This is usually due to the suboptimal quality of the stock being sold as a high.
A bearing needs to be balanced and designed: the hardness of the balls requires to be combined with equally smooth and hard bearing tracks. The 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, shortened life or even total failure of the bearing.
If something breaks in the first year, Kogel will repair or replace the product without many questions about jobs.
After the first year, a service must be provided. If the bearing is serviced by a qualified mechanic, ie a cleaning, relubrication and replacement of the seals,
the warranty is extended for another year.
This bottom bracket allows the installation of cranks with SRAM DUB shaft in frames that have a PF30 bottom bracket shell. The outward displacement of the bearings significantly increases the system rigidity compared to solutions with many spacers.
intended use : MTB
Material bearing shell: aluminum
Material bearing: ceramic hybrid
Inner bearing type: PressFit
Inner bearing housing Width: 68 mm or 73 mm
Crank shaft diameter: 28.99 mm
Inner bearing housing frame: 46 mm
Compatibility Crank: SRAM DUB
Stock: Kogel Bearings
Tool holder: PressFit Tool
Weight: about 100g
Scope of supply: 1x KOGEL BEARINGS bottom bracket PF30 to SRAM DUB | Cross Seals ceramics
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.