loose needle rollers(NRA,NRB) or products clutches, cams, cage assemblies! precision bearing rollers, hardened needle rolling elements(G2G3) for bearing! needles, rollers, pins, miniature shafts manufacture!
needle rollers producers are precision parts of needle rollers bearing. they are mainly used as bearing rolling elements. end configurations include flat, spherical,and cone shaped. they can also serve as precision shafts or as locating pins in some applications etc.
we have over 20 years of manufacturing experience of precision needle rollers,cylindrical rollers and tapered rollers or in china. we specialize in super short rollers and superfine needles,not any one of the manufacturers had so much stocks as us.
we supply high quality manufactured needle rollers in hardened steel, in both inch and metric sizes. dowel pins are available in pull and plain design. we also custom manufacture special dowel pins to your specification, and will be pleased to offer our quotation upon receipt of your detailed requirements.
the table is priority standard sizes of needle rollers,more stock or detail,such as diameter 0.5,1 2,3,4,5,6,7,8(mm)etc. please E-mail to me.
we also manufactures precision cylindrical rollers and needle rollers according to customer's drawing.
standard sizes of needle rollers and cylindrical rollers
|loose needle rollers,cylindrical rollers, needle rolling elements, bearing,precision needle rollers|
|diameter tolerance||+0/-0.005, +0/-0.003, +0/-0.002,|
|length tolerance||+/-0.015, +/-0.01, +0/-0.015, +/-0.025,+0/-0.005|
|Hardness||HRC58-65(chrome steel) HRC55-58(stainless steel)|
|ends or body||NRA,NRB,crowned,tips,hollow,grooved etc.|
|grouping||0.001mm,0.002mm,0.003mm or 0.0005mm|
|materials||chrome steel,stainless steel,ceramics,Si3N4, ZrO2, tungsten carbide.|
|needle rollers, needle roller bearings, miniature pins, needle rollers suppliers, precision shafts|