Fast Speed, Low Vibration Miniature Deep Groove Ball Bearing Mr137 Mf137 Mr137zz Mf137zz High Performance Ball Bearing Shanghai SXD Precision Bearing Production Co., Ltd. Base Info Description Pre：Miniature Deep Groove Ball Bearing 672 672zz P0-P4 Grade, Low Noise, Long Service Life, Full Service Support Next：High Quality Miniature Deep Groove Ball Bearing 697 F697 697zz F697zz for Favorable Price
