Looking for zhejiang ute bearing co., ltd

RFQ Description

Hello,I am interested in your line of dental bearings.I am not quite sure what the partnumber designations mean but I believe the S418MCK-H/P4 is the smooth rear bearingfor the Midwest Tradition and Quiet Air handpiece and also the NSK standard bearing ?The S418FMCKW-H/P4 is the flanged front bearing for the Midwest Tradition andQuiet Air handpiece ?The KA144Z/P4 is the standard bearing for the Kavo handpiece ?Is this all correct ?There is also the S418MCK/P4 with no H.1) Can you tell me what the H designates ? and also the A in the 2.78 thick bearing ?2) Do all of these incorporate the titanium retainers and have 9 balls and do you alsomanufacture them in 7 or 8 ball configuration ?3) Can you supply them all in ANGULAR contact with FULL retainer instead of crown typeretainer (in radial/deep groove type bearings) for extra strength ?4) Do the Kavo and flanged Midwest bearings have front shields ?I am mainly interested in the ceramic ball type.I would like some samples of the above 3 bearing types.If the quality is what I am hoping for I will be purchasing maybe 150 of each per monthPlease quote me the price for 50,100,150,200,250,Etc. of each bearing (and also steel and ceramic ball)and also for the samples (3- S418MCK-H/P4, 3 - S418FMCKW-H/P4 and 6 of the KA144Z/P4 plus shipping via EMS if possible).Please answer all my questions the best you can.Thank you very much for your time.Best regards,I was unable to send an e-mail to the address on your website.Please contact me *:*@********************resident-Precision Handpiece & Machining 21844 S. Vermont Ave.#6 Torrance,CA 90502 (USA) 310-328-7445