16 Pack Fidget Spinner Bearing and Cap Replacement Set, Chrome Steel Bearing Balls, High Speed 13mmx7mmx4mm Bearings Single Sealed Small Bearings for Fidget Spinner

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• [Package Content] This package includes 16pcs MR137 precision high-speed ball bearing with blue plastic seals and 16 pairs of ball bearing caps in black color (diameter: approx. 2.1cm). MR137 Steel Ball Bearing sizes: I.D.(inner diameter)=7mm; O.D. (outer diameter)= 13mm; Thickness:4mm.
• [Premium Quality] The bearing is made of high-quality stainless steel and plastic for durability and resistance to deformity under heavy loads. Inner and outer races are machine polished for smooth, high-speed rolling. This bearing provides higher speeds, precision, and durability, reducing replacement and maintenance costs.
• [Radial Ball Bearing] MR137 bearings are sealed on one side to protect against contaminants like dust and water out of the apparatus and retain lubrication. Stainless steel races ensure durability and corrosion resistance. Single-row radial ball bearing for applications that support radial and axial loads.
• [Spinner Cap & Wide Application] Caps made with ABS plastic are lightweight but durable, compatible with MR137 bearings. Easy to install and uninstall the two components. This bearing set can be used in a wide variety of applications, including fidget spinner creation, replacement, and more DIY projects, perfect for fidget spinner frame replacement when your original caps/bearings are lost. You could also DIY your unique fidget spinner with this bearing set.
• [Safety Disclaimer] We do not accept any responsibility or liability for misuse of this product. All our products are extensively tested to comply with rigorous and stick QC standards. We recommend proper supervision as we cannot be liable for misuse or accidents. Small parts disclaimer: These accessories contain small parts, not for children under 3 years in case of swallowing or choking.