The FR155 is an inch-series flanged deep groove ball bearing with a 5/32" (3.967 mm) bore, 7.938 mm OD, and 2.779 mm width . Its integrated flange simplifies mounting . This compact bearing offers a dynamic load rating of 360 N and supports high speeds (53,000 rpm grease / 63,000 rpm oil) . It is commonly used in small motors, precision instruments, and various industrial equipment .
