55 × 90 × 18 mm. Single-row deep-groove ball bearing with rubber seals on both sides designation 2RS. Bore diameter d = 55 mm, outside diameter D = 90 mm, width B = 18 mm.
55 × 100 × 25 mm. ZKL bearing for industrial applications. When replacing a part, always verify the complete designation, dimensions, design and application requirements against the manufacturer documentation.
55 × 120 × 29 mm. NTN bearing for industrial applications. When replacing a part, always verify the complete designation, dimensions, design and application requirements against the manufacturer documentation.