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๐ต Roll Smooth, Roll Smart โ Upgrade Your Track Game!
The uxcell 4pcs U Type Groove Pulley Nylon Guide Rolling Bearings are precision-engineered ball bearings with a 5x25.5x8.5mm dimension, featuring a durable nylon U-groove roller and chromium steel construction. Shielded on both sides and rated ABEC 1 with low noise Z1 tolerance, these bearings provide smooth, quiet, and long-lasting performance ideal for door, window, and mechanical track systems.



| ASIN | B0CQJPZWXD |
| Bearing Number | 4 |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #75,756 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #379 in Deep-Groove Ball Bearings |
| Brand Name | uxcell |
| Compatible Lubricant | Oil |
| Customer Reviews | 4.2 4.2 out of 5 stars (62) |
| Item Dimensions | 0.33 x 0.2 x 1 inches |
| Item Thickness | 8.5 Millimeters |
| Manufacturer | uxcell |
| Material Type | Chrome Steel (GCr15) , Nylon |
| Model | Bearings |
| Outside Diameter | 25.5 Millimeters |
| Part Number | a23110200ux0585 |
| Specification Met | ABEC 1 |
| Unit Count | 4.0 Count |
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