B-47 Needle Roller Bearing, Full Complement Drawn Cup, Open, Inch, 1/4" ID, 7/16" OD, 7/16" Width, 10,000 RPM Max. Rotational Speed Drawn cup needle roller bearing for applications with high dynamic loads Drawn steel outer shell (cup) has a reduced cross-section for use in restricted spaces Full complement of rollers for higher radial load capacity than caged rollers Through-hardened, high-carbon chromium steel rollers for heat tolerance and durability under heavy loads Meets standard ASTM F2162 for quality assurance