{"product_id":"12-pack-small-u-groove-pulley-bearings-4x13x4mm-fo","title":"12 Pack Small U Groove Pulley Bearings 4x13x4mm For Rail Track Linear Motion Systems, Miniature Aluminum Alloy Pulleys, Replacement Roller Wheel Set For Easy Install And Smooth Operation","description":"\u003cdiv\u003e\n\u003cp\u003e12-Pack Mini U-Groove Pulleys 4x13x4mm for Smooth Motion\u003cbr\u003e\n✔️ Width 4 mm (0.16 in), Ø13 mm (0.51 in), ID 4 mm (0.16 in), 12 pcs\u003c\/p\u003e \u003cp\u003eThese compact aluminum alloy U-groove pulleys ride on standard rails, providing precise, low-friction guidance in linear motion systems. They're perfect for DIY projects, 3D printers, sliding doors, drawers, and small automation builds.\u003c\/p\u003e ✅ Wheel diameter Ø13 mm (0.51 in), bore Ø4 mm (0.16 in) \u003cbr\u003e\n✅ Width 4 mm (0.16 in), groove width 2.2 mm (0.09 in) \u003cbr\u003e\n✅ Material: aluminum alloy, durable for long service life \u003cbr\u003e\n✅ Sealed design keeps lubricant in for low-maintenance operation \u003cbr\u003e\n✅ Package: 12 pulleys per pack for easy replacement \u003cbr\u003e \u003cp\u003e💡 What is a small U-groove pulley bearing used for in compact linear motion systems? This handy part guides components along rails with minimal friction.\n- Handy for DIY projects like 3D printers, sliding doors, and drawers\n- Improves tracking on rails with a deep V groove for stable motion\n- Easy to install and replace in tight spaces with standard rail sizes\u003c\/p\u003e \u003c\/div\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52803857744191,"sku":"VXB0FPWY87PB","price":28.54,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/71sF3ikbyDL.jpg?v=1776452865","url":"https:\/\/bearingscanada.com\/products\/12-pack-small-u-groove-pulley-bearings-4x13x4mm-fo","provider":"Bearings Canada","version":"1.0","type":"link"}