Bearings ACB S8551 BO - ABEC 5
The Enduro Bearings ACB S8551 BO is an angular-contact headset bearing built with 45 x 45 degree contact angles for 1-3/8 inch headsets. Races are made from Black Oxide/Magnetite treated 52100 high-carbon chromium alloy, rated ABEC 5 with Grade 10 balls. This bearing also serves as the Future Shock headset bearing on Specialized Roubaix, Ruby and Diverge frames from 2017 onward.
Each race receives a secondary super grind polish for a smooth rolling surface, then a multi-bath Black Oxide treatment that adds roughly 3 microns of anti-corrosive depth and extra toughness. Dual-lip LLB seals ride in a labyrinth groove, and the cavity is filled 90% with Almagard 3752 grease. Static load rating is 660 lbf (2.93 kN); claimed weight is 20.05 grams.
Quick Facts
| Feature | Specification |
|---|---|
| Bearing type | Angular-contact headset bearing |
| Dimensions | 36.8mm x 45.8mm x 6.5mm |
| Contact angles | 45 x 45 degrees |
| ABEC rating | ABEC 5 |
| Static load rating | 660 lbf / 2.93 kN |
or with
Afficher tous les emplacements
Les images du produit peuvent différer légèrement des spécifications finales.
BÉNÉFICIEZ DE 10% DE RÉDUCTION
Livraison gratuite
Retours simples
Garantie de prix
