5 21 9mm 695zz bearing

{"cid":"91187508","title":"Water well drilling 8 1\/2inch 215.9mm Sealed Bearing Roller TCI Tricone Bit tci tricone drill bits","imgUrl":"https:\/\/img.ismap.com\/nimg\/75\/82\/7dd954c2560c5f8f133ab1c1cbe9-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"chuanzuan","Model Number":"IADC 537","Minimum Order Quantity":"1","Certification":"CE","Place of Origin":"china","Supply Ability":"100","Packaging Details":"Fumigation wooden box","size":"8 1\/2 inch tci tricone bit","IADC Code":"537","Connection":"4 1\/2\"API reg pin","Nozzle Qty":"3NZ","Make up Torque(KN.m)":"16.3~21.7","Rotary Speed(rpm)":"110~40","Bearing type":"Sealed and non-sealed bearing","Machine Type":"water well drilling","Color":"bule"}}