ZHEJIANG TONGTAO BEARING CO., LTD.located in Jiashan County which is in the north side of Hangzhou Bay Sea-Crossing Bridge, covering an area of 15,300 sq.m. OTT is major in the manufacturing fields of Auto altenator bearings.Auto tensioner bearings.Anti-water bearings,Auto power steering pump bearings.Auto alternator bearings.Double Row Contact Bearing, Double Row Contact Bearing etc. Meanwhile, OTT devotes to specail bearings as
well as ceramic ball bearings. OTT avails the top world equirements, thchnology,manufacturing techniqueand structure,specialisingin the low-noise motor bearings and high-temperature& high-speed bearings whose bore from 10-50mm with P4 precision. With complete manufacturing technique in OTT who owns the most advanced worldwide full-automatic superfinishing assembly line equipments,we do fully achieve the man-machine interface from the grinding to the finished products.Company established 100,000 level free dust assembly workshop in accordance with the international top requirements, in this way preventing the external environmental factors into the bearing assembling process. As for the heat treatment, OTT uses C-A technology which can improve the bearings’s using life around five to ten times than the old way.By now, OTT operates withIATF 16949 Quality Management System and 5S Fieldwork Management System, what’s more, OTT gets the most advanced inspection equipments,which guarantee to produce the motor bearings of high loading,long life and low noise .