ER50 High Precision ER SPRING COLLET
Basic InfoModel NO.:ER8-ER40Material:Suj2Size:MetricProduct Description Type NoD1Hpcs/setShank DiaER88.513.591, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5ER1111.518131, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 711.51871, 2, 3, 4, 5, 6, 7ER161727101, 2, 3, 4, 5, 6, 7, 8, 9, 10172783, 4, 5, 6, 7, 8, 9, 10ER202131122, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 213110 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ER252635152, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16263574, 6, 8, 10, 12, 14, 16ER323340183, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 203340114, 5, 6, 8, 10, 12, 13, 15, 16, 18, 20334066, 8, 10, 12, 16, 204146234, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26ER404146154, 5, 6, 8, 10, 12, 13, 15, 16, 18, 20, 21, 22, 25, 26414676, 8, 10, 12, 16, 20, 25Material:SUJ2 ( High-carbon bearinmg steel: heat treatment makes it more hardend , high wear resistance and longer life )Obliquity: 8Surface roughness: within RZ22.5Clamping Range: ER8,ER11 =0.5mm ER16~ER40=1mm, but bore diameter under 2.5mm and clamping range 0.5mm is machined by precision boring and grinding.the Concentricity is strictly inspected by DIN standard, there are total three precision grade, that is common grade 0.2mm, A grade 0.04mm, UP grade 0.005mm, the stability of UP grade will be better if it fits HSP nuts.Application: clamp drill bits, screw tap, end mill cutter, reamer and other toolsPlease tell us the precision grade before place order
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