Swedish bearing company SKF briefly manufactured novelty yo-yos with ball bearings in 1984. In 1990, Kuhn introduced the SB-2 yo-yo that had an aluminum transaxle, making it the first successful ball-bearing yo-yo.Classic Toys: The Yo-Yo . Retro Planet (May 12, 2009). Retrieved on April 9, 2012. The SB2 was originally offered only in a natural silver color, but as time went on, it became available in many different colors, with various decorative embellishments.
Swedish bearing company SKF briefly manufactured novelty yo-yos with ball bearings in 1984 In 1990 Kuhn introduced the SB-2 yo-yo that had an aluminum transaxle making it the first successful ball-bearing yo-yoClassic Toys The Yo-Yo  Retro Planet (May 12 2009) Retrieved on April 9 2012 The SB2 was originally offered only in a natural silver color but as time went on it became available in many different colors with various decorative embellishments