About Products: 01,We have overseas warehouses, some of which will be delivered the next day. About Shipping: 04,We support 30 days no reason return standard, worry free return service. 05,All packages in our FUSHI store provide tracking service. 06,We provide free transportation insurance to protect the safety of your goods. About Services: 07,We provide bearing drawings, data and proforma invoice free of charge. 08,If you are preparing for a new project, we support custom bearing requirements. Thank you, VORON Design The original goal of the VORON project, back in 2015, was to create a no-compromise 3D printer that was fun to assemble and a joy to use. It had to be quiet, clean, pretty, and continue to operate 24 hours a day without requiring constant fiddling. In short a true home micro-manufacturing machine without a hefty price tag. Our mission is to provide high quality and cost-effective bearings. This is in line with the spirit of VORON Design, so we have developed a series of bearing for Voron printers. Convenient for to buy and assemble. TECHNICAL SPECS Model: F623-2RS Type: Flange Ball Bearing Inner Diameter: 3 mm Outer Diameter: 10 mm Flanged Diameter: 11.5 mm Thickness: 4 mm Quantity: 1 Lot = 10 Pcs BEARINGS DETAIL ↓ USE RECOMMEND ↓ Automatic Testing Equipment ↓ According to GB & ISO standard, grade each product. Ensure that the quality and grade of products are consistent, and do not make false publicity. Advanced Social Security Production Line ↓ Clean working environment, a new generation of mirror grinding technology. Complete automatic production line, superior to stable quality supply. Authoritative Quality Inspection Certification ↓ We entrust PONY testing group to test, Through RoHS and REACH a total of 191 component testing, All qualified standards. ( N.D.) If you can't find the bearings, come to FUSHI There are more than 50,000+ models of bearings in the world, We can offer 10,000+ of them, And 4,050+ models remain in stock.