{"product_id":"pololu-universal-aluminum-mounting-hub-for-3mm-shaft-4-40-holes-2-pack","title":"Pololu Universal Aluminum Mounting Hub for 3mm Shaft, #4-40 Holes (2-Pack)","description":"\u003cp\u003eThese universal aluminum mounting hubs allow you to mount custom wheels and mechanisms to \u003cstrong\u003e3mm\u003c\/strong\u003e diameter motor shafts.\u003c\/p\u003e\n\u003cp\u003eThe set includes two hubs, two #4-40 set screws for securing the hubs to motor shafts, and one 0.05″ Allen wrench for use with the set\u003c\/p\u003e\n\u003cp\u003eThese universal mounting hubs are designed to work with most 3mm diameter shafts, including round shafts, “D” shafts, and Tamiya’s 3mm hexagonal shafts. Each of the two included hubs has four mounting holes for #4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors. The two included #4-40 hex set screws (one for each hub) allow secure coupling of shaft to hub, and a 0.05″ hex wrench (often the smallest size in SAE Allen wrench sets) is included for use with the set screws.\u003c\/p\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 17.5 mm diameter × 5 mm thick\u003c\/li\u003e\n\u003cli\u003eWeight: 2.8 g\u003csup\u003e1\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eShaft diameter: 3 mm\u003c\/li\u003e\n\u003cli\u003eMounting hole size: #4-40\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003csup\u003e1\u003c\/sup\u003eFor a single hub only (without set screw).\u003cbr\u003e\u003csup\u003e2\u003c\/sup\u003eThis is also the size of the set screw.\u003c\/em\u003e\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":32236586336339,"sku":"POL-1078","price":7.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J1103.1200.jpg?v=1600860842","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/pololu-universal-aluminum-mounting-hub-for-3mm-shaft-4-40-holes-2-pack","provider":"Pimoroni Ltd","version":"1.0","type":"link"}