dental bearing noise less than 30 db

{"cid":"91223770","title":"SR144TLZWKN 3.175*6.35*2.78 High Speed Dental Bearing Torlon Cage Noise Level Less than 30 dB","imgUrl":"https:\/\/img.chinax.com\/nimg\/f7\/09\/c86240a2c206aef205ad50a75838-200x200-1.jpg","attrs":{"Price":"3.5USD","Brand Name":"SKS","Model Number":"SR144TLZWKN","Minimum Order Quantity":"500 pcs","Delivery Time":"5-8 days","Certification":"ISO9001 SGS","Place of Origin":"CHINA","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram","Supply Ability":"100,000 units per month","Packaging Details":"Tubular packaging box\uff0cinner box\uff0cBuffer cushion\uff0couter cartons","Cage Type":"Torlon","Package":"Individually packed","Temperature Resistance":"Up to 135\u00b0C","Life Span":"Over 10,000 hours","Material":"Ceramic","Size":"Standard"}}