National RW-507-ER Wheel Bearing Designed to meet or exceed OE quality, premium-quality bearings from National® are manufactured to exacting standards to deliver lasting performance and extended bearing life. COMPREHENSIVE COVERAGE -- Industry-leading coverage for domestic and import applications BUILT TO LAST -- Advanced heat treatment process for strength PREMIUM MATERIALS -- Precision manufactured using premium-grade steel for lasting performance and extended bearing life RIGOROUS TESTING?--?Comprehensive?testing throughout design and development processes by National engineers for quality you can count on? RELIABLE PERFORMANCE -- Element size and quantity are engineered to meet or exceed the load rating of OE bearings Package Dimensions: 2.875 x 1.500 x 2.875 inches Package Weight: 1.04 lb Package Quantity: 1 UPC: 724956032488 Bore (Inch): 1.378 IN Bore (mm): 35.000 MM Design: Single Row Radial Inner Race Bore (Inch): 1.378 IN Inner Race Bore (MM): 35.000 MM Inner Race Radius (Inch): 0.100 IN Inner Race Radius (MM): 2.540 MM Inner Race Width (Inch): 0.925 IN Inner Race Width (MM): 23.495 MM Outer Race Outside Diameter (Inch): 2.835 IN Outer Race Outside Diameter (MM): 72.000 MM Outer Race Radius (Inch): 0.040 IN Outer Race Radius (MM): 1.016 MM Outer Race Width (Inch): 0.886 IN Outer Race Width (MM): 22.500 MM Outside Diameter (mm): 72.000 MM Series: RWS Type: F-2 Width (Inch): 0.925 IN Width (mm): 33.350 MM Country of Origin: CN