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⚙️ Elevate your gear with precision that never quits!
The uxcell MR63ZZ is a set of 20 miniature deep groove ball bearings, sized 3x6x2.5mm, crafted from durable chrome steel with double steel dust shields. Engineered for high-speed, low-friction performance, these bearings excel in handling radial and moderate axial loads while resisting dirt and heat—ideal for professional-grade cycling and precision machinery.







| ASIN | B075CMRGY6 |
| Bearing Number | MR63ZZ |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #40,129 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #136 in Deep-Groove Ball Bearings |
| Brand Name | uxcell |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.5 4.5 out of 5 stars (253) |
| Item Dimensions | 5.51 x 3.94 x 0.39 inches |
| Item Thickness | 2.5 millimeters |
| Item Weight | 7 g |
| Manufacturer | uxcell |
| Material Type | Alloy Steel |
| Model | a17070700ux0552 |
| Number of Items | 20 |
| Outside Diameter | 6 millimeters |
| Part Number | a17070700ux0552 |
| Unit Count | 20 Count |
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