Single row deep groove ball bearing with rubber seals in contact on both sides, Inner Diameter (d): 17 mm, Outer Diameter (D): 40 mm, Width (B): 12 mm, Estates: 2RSH (two rubber lip seals), Dynamic load, C: 9.95 kN, Basic static load, C: 4.75 kN, Limit speed: 12 000 r/min