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Ca90 - Dynamic Thrust Rating (90 million revolutions)6: 163000 N / 36700 lbf
Cone part number: X33018
T - Bearing width: 48
D - Cup outer diameter: 420
LLB seals are comprised of Nitrile material rubber with a steel insert and ideally suited for constantly spinning bottom bracket and hub bearings
UCFX09 Challenge Triple Sealed 4 Bolt Flange Bearing 45mm Shaft Sealed Ca90 - Dynamic Thrust RatingChallenge triple sealed bearings are a type of bearing that features a seal with three lips to provide superior protection against contaminants and preserve the lubrication within the bearing. These bearings are commonly used in harsh environments where water, dirt, and other contaminants may pose a risk to the bearings lifespan. These triple sealing systems provide exceptional protection against contaminants for Challenge bearings. The sealing
