The SKF 51102 is a single-direction thrust ball bearing with a 15mm inner diameter, 28mm outer diameter, and 11mm thickness. Constructed from GCr15 high-carbon chromium steel with a pressed steel cage, it withstands unidirectional axial loads only. Ideal for low-speed, high-precision axial positioning applications (e.g., textile machinery shaft ends, small pump axial supports, precision instrument adjustment mechanisms), it offers a compact design, stable load capacity, and resistance to axial shocks.