LR 203 NPPU Custom Ball Bearings: 15*12*35mm Bearing Features: Inner Ring Diameter (bore): 12mm Outer Ring Diameter:17mm Width:47mm Basic Dynamic Load Rating Cr:8400kN Basic Static Load Rating Cor:4400kN Bearings Weight:110g LR 203 NPPU Custom Ball Bearings Features: 1.The product's outer circle is processed into a R500 arc surface (model suffix belt U), which makes the product bear good force in the process of using. 2.The inner structure design and thicker outer ring of deep groove ball bearing or double row angular contact bearing are adopted to make the roller have higher load-carrying capacity. 3.Rollers are made of high-quality bearing steel, heat-treated, precision grinding and filled with long-life high-quality multi-purpose grease. e bearing. LR 203 NPPU Custom Ball Bearings Advantages: 1.High-quality steel: Ultra-clean steel bearings extend up to 80% of life. 2.Advanced grease technology: Seiko grease, can extend life and performance. 3.Super finished raceway: special grinding to reduce noise, improve lubricant distribution and life. 4.Patent seals provide protection against pollution in the worst environments. 5.Quality Assurance: 100% testing to ensure the quality of the whole product.