Solid ring type needle bearing is a bearing unit consisting of machined outer ring, needle roller, cage and separable inner ring. It is a bearing with small cross-section height and large carrying capacity. It includes NK, NKS, RNA48, RNA49, RNA69, NKI, NKIS, NA48, NA49, NA69 series and RNA49 with sealing ring. RS, RNA49... 2RS, NA49... RS, NA49... 2RS series, British BR, BRI series, inner ring IR, LR series.