0 02mm displacement resolution linear stepper motor

{"cid":"91192058","title":"NEMA 8 20mm 12v Dc Pm Printer Mini Linear Stepper Motor 2 Phase 4 Wire With metal slider","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/ab\/aaf90253c17a26690aa9e229fa20-200x200-1.jpg","attrs":{"Price":"$4.5-$15","Brand Name":"VIC-TECH","Model Number":"SM20-21L","Minimum Order Quantity":"1","Delivery Time":"15~30 days after the sample is paid","Certification":"RoHS","Place of Origin":"Jiangsu, China (Mainland)","Payment Terms":"Western Union, MoneyGram\uff0cCredit Card,VISA,, T\/T","Supply Ability":"10000 PCS 45days","Packaging Details":"Selling Units:\tSingle item plastic box inner , outer paper box Package: single carton packing, 100 - 1000 pieces per box.","Type":"Permanent Magnet","Step Angle":"18\u00b0","Phase":"2","Current \/ Phase":"800mA","Rated Voltage":"12V","Coil Resistance":"20\u03a9\u00b110%","Holding Torque":"800gf.cm","stroke":"21mm"}}

{"cid":"91210843","title":"2 Phase 3.3vDC Micro Slider Stepper Motor 10mm Mini Slider Screw Linear Stepper Motor","imgUrl":"https:\/\/img.chinax.com\/nimg\/88\/e8\/f94d97b71992d55f4ac3df9f0fd7-200x200-1.jpg","attrs":{"Price":"US$2 ~7","Brand Name":"V-motor","Model Number":"VSM10152","Minimum Order Quantity":"1","Delivery Time":"15 days","Certification":"RoHS","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"100000\/month","Packaging Details":"The foam box is properly placed for the product, and the outside is wrapped with a carton and plastic film, and the bulk product is handled with a plastic pallet for easy transportation and product protection.","Motor size":"10 mm","Step angle":"18\u00b0\/Phases","Motor type":"stepper motor with lead screw","Movement type":"Linear","Lead pitch":"M2pitch 0.4mm","Driving voltage":"3.3 VDC","Coil resistance":"10 ohm \uff08can customization\uff09","Driving method":"Bi-polar 2-2 phase"}}