We LYPRS bearing factory are specialized in thin section crossed roller bearing RB series before five years ago. And our RB series are complete same with THK standards. Whatever the oil groove, the elastic collar, dimensions, clearance, etc are all same with THK products. We are the long-term supplier to Holland, Germany, UK company. Therefore, we have amount of stock. We can produced the INA SX series thin-section crossed roller bearing,THK RB series crossed roller bearing,RE series crossed roller bearing RA series crossed roller bearing,IKO CRBH series crossed roller bearing,CRBCseries crossed roller bearing,CRBS series crossed roller bearing. RB17020 The major dimensions(mm): d D H 170 220 20