bearing,roller bearing,slew bearing. detail dimensions and classifications,please check on our company website. bearing,roller bearing,slew bearing.Part No.Dimension(MM) Ball Rate DdFECNo.DiakgFA231-0810H23.18.1H25.08.72.4113.9716FA270-120027.012.029.014.04.0144.0018FA287-100228.79.731.720.73.2134.7620Moer optional size,please contact us to obtain the detail catalogue. FA bearing