NiArt 24-Pack MR137 Bearings with Caps for DIY Fidget Spinners

Overview

Discover a versatile kit from NiArt built around the MR137 high‑speed bearing. Each compact 0.5" unit pairs a robust chrome steel core with a one‑sided seal, and it comes with durable caps. Designed for quick, smooth rotation, this set supports a wide range of DIY projects and hobby applications.

What’s inside

• 24 MR137 precision high‑speed bearings with blue seals (I.D. 5mm, O.D. 13mm, thickness 4mm).
• 24 pairs of black caps engineered to fit MR137 bearings.

Performance and durability

• Stainless‑steel races offer durability and corrosion resistance for long‑lasting use.
• Machine‑polished inner and outer races promote smooth, high‑speed rolling with reduced maintenance needs.
• Single‑side seal design helps keep dust and moisture out while preserving lubrication.
• ABS plastic caps provide lightweight, durable compatibility for a wide range of assemblies.

Applications and ideas

• DIY fidget spinners, with trusted MR137 bearings for steadier spins.
• Replacement parts for lost or worn caps or bearings in hobby projects.
• Epoxy resin casting crafts that benefit from precise, durable components.
• Skateboard or other small‑scale crafts requiring reliable radial bearings.

Why NiArt

NiArt supports your projects with a straightforward, quality‑focused bearing set. If you encounter any issue, our team offers a 24‑hour turnaround to help resolve concerns, keeping your builds moving forward.

Note: This description highlights product design and potential use cases. Results may vary by project and application.