Most commonly used 25mm bearing, 25x42x9mm (OTK use 25x42x12mm, 6905-12). Introducing WorldWide Bearings, formerly CBR, precision engineering since '94 in NJ, USA. Trusted by NHRA, NASCAR, IRL, Moto-America, and more. Meticulously crafted for peak performance, our bearings feature low-friction, low-contact seals. With balls sourced from top manufacturers like Cerbec, SKF-MRC, Tsubaki USA, and Toshiba, paired with Polymide cages and Mobil Polyrex EM grease, our durability and reliability are unmatched. Beware of imitations! Unlike inferior hybrid bearings, WorldWide Bearings sets the standard for quality and performance. Experience innovation and excellence. Simply the BEST HYBRID BEARINGS PERIOD!