Precision Roller/Needle

High precision roller

Custom-made high precision roller. Diameter φ1.0 〜 φ20.0 （Please contact us if you need over φ20.） Total length Ｌ=0.9mm〜40.0mm （Please contact us if you need over L40mm） Roundness Until 0.0001mm Material SUJ2・SUS440C・SUS420J2・KWS4MA・Hard-metal・Fine-ceramics These roller are not JIS standard but a custom-made. Please contact us your demand size.

Roundness

Needle roller for XY table

Highest grade precision by ultraprecision grinding technique. Diameter mutual error Under0.00005mm（Under0.05μm） Roundness Under0.00005mm（Under0.05μm） Surface roughness Under0.00001mm（Under0.01μm） Material Stainless・Hard-metal・Fine-ceramics

Microscopic swell and roundness of table motion by a linear motor drive(horizontal direction/ X-axis)