接杆式内径千分尺 137系列-延长杆型/139系列-延长管型/140系列-延长管型 特点： - 通过连接延长杆（延长管）有带有微分头的测砧可扩大测量范围
- 测量面带有硬质合金头（也可选择测量面不带硬质合金头的137经济型）
- 139系列采用高耐磨性延长管
- 140系列采用大直径延长管
性能参数： - 精度137、139系列：±（3＋n＋L/50)um[±(.00015＋.00005n＋.00005(L/2))″]
- 140系列：±（7＋n＋L/50)um[±(.0003＋.00005n＋.00005(L/2))″]
公制型延长管型 | 测量范围 | 货号 | 分度值 | 测头行程 | 延长管 | | 100-125mm | 139-001 | 0.01mm | 25mm | —— | | 100-500mm | 139-173 | 0.01mm | 25mm | 25mm,50mm,100mm,200mm | | 100-900mm | 139-174 | 0.01mm | 25mm | 25mm,50mm,100mm,200mm,400mm | | 100-1300mm | 139-175 | 0.01mm | 25mm | 25mm,50mm,100mm,200mm,400mm(2个) | | 100-1700mm | 139-176 | 0.01mm | 25mm | 25mm,50mm,100mm,200mm,400mm(3个) | | 100-2100mm | 139-177 | 0.01mm | 25mm | 25mm,50mm,100mm,200mm,400mm(4个) |
英制型延长管型 | 测量范围 | 货号 | 分度值 | 测头行程 | 延长管 | | 4"-5" | 139-002 | .001" | 1" | —— | | 4"-20" | 139-178 | .001" | 1" | 1",2",4",8" | | 4"-36" | 139-179 | .001" | 1" | 1",2",4",8",16" | | 4"-52" | 139-180 | .001" | 1" | 1",2",4",8",16"(2个) | | 4"-68" | 139-181 | .001" | 1" | 1",2",4",8",16"(3个) | | 4"-84" | 139-182 | .001" | 1" | 1",2",4",8",16"(4个) |
公制型延长管型 | 测量范围 | 货号 | 分度值 | 测头行程 | 延长管 | | 1000-2000mm | 140-157 | 0.01mm | 50mm | 50mm,100mm(2个),200mm,500mm | | 1000-3000mm | 140-158 | 0.01mm | 50mm | 50mm,100mm(2个),200mm,500mm,1000mm | | 1000-4000mm | 140-159 | 0.01mm | 50mm | 50mm,100mm(2个),200mm,500mm,1000mm(2个) | | 1000-5000mm | 140-160 | 0.01mm | 50mm | 50mm,100mm(2个),200mm,500mm,1000mm(3个) |
英制型延长管型 | 测量范围 | 货号 | 分度值 | 测头行程 | 延长管 | | 40"-80" | 140-161 | .001" | 2" | 2",4"(2个),8",20" | | 40"-120" | 140-162 | .001" | 2" | 2",4"(2个),8",20",40" | | 40"-160" | 140-163 | .001" | 2" | 2",4"(2个),8",20",40"(2个) | | 40"-200" | 140-164 | .001" | 2" | 2",4"(2个),8",20",40"(3个) |
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