Drawn cup needle roller bearings have a variety of structures such as perforated type and sealed type. The height of the radial section is small. The outer ring and cage are manufactured by metal stamping and forming methods. The contour surface of the needle roller of the bearing is designed to be modified, which can effectively avoid the destructive edge stress. According to needs, lubricating oil holes can be provided on the outer ring of the bearing to lubricate the bearing. And can provide perforated or sealed bearings with oil seals to solve the occasions where oil seals cannot be installed due to space constraints, and lithium-based grease with good lubrication and anti-rust properties is filled in between.