Skf - D. 50/90X23 referenced roller bearing product produced by high technology. D. 50/90X23 became irreplaceable of foundations. We are one of the few companies which can present an offer for this product. Our company can make an offer even if we do not distributor of United States. D. 50/90X23 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.