SF3-8M is a 3mm ID stainless steel thrust ball bearing with grooved raceway. Its shaft washer and housing washer are made of 440C stainless steel, and its cage is made of brass or stainless steel. F3-8M is its chrome steel version, they are the exact same sizes but different material. It is a separable bearing with 3 parts, they are a shaft washer, a housing washer and a cage with steel ball assembly. There are 6 pieces of steel balls assembled with the cage, steel ball diameter is 1.588 mm each. The bearing weight of SF3-8M is 0.6 grams approximately.
SF3-8M comes with a dimension of 3x8x3.5 mm. Its pilot bore diameter is 3mm, pilot housing outer diameter is 8mm, and thickness is 3.5mm. The tolerance of bore and outer diameter is -0.008 to 0 mm, and the tolerance for height is 0.12 to 0 mm. It is an ABEC-1 grade thrust bearing, higher grades are available upon request.
SF3-8M is an open type axial load thrust ball bearing with a max Cr dynamic thrust load of 540 N, and a static thrust load of 432 N. With light oil lubricating, this bearing can reach up to a max speed of 9,900 rpm. Its operating temperature range is -30℃ to 110℃.
SF3-8M stainless steel thrust ball bearing is widely used in applications like micro electric motor, RC helicopter and RC car, etc. Fitrun is a professional micro thrust bearing manufacturer with 20 years bearing manufacturing experience. We can customize the bearing according to your requirements to fit for your special applications. Please contact us to get a free and quick quotation for your custom thrust bearing today.