Product Features
RRI (Roller Bearing-Rubber Sealing-Inserted Tooth) bits is a kind of ideal and economic tool in high speed well drilling.
Product Features:
-Sealed roller bearing structure is placing the cylinder roller into groove of cone which increases the bearing neck size to load larger WOB and adapt high ROP.
-Surface of thrust bearing is hardening treated and wear reducing treated to improve the loading ability and anti-seizure ability of bearing.
-High strength and high flexible hard alloy teeth are applied to improve the anti-impact performance, reduce tooth breaking rate.
-Optimized milled teeth quantity and teeth arrangement structure give full play to the cutting ability and cutting speed of drill bits.