10pcs Inline Roller Skate Bearing 3x10x4mm 623zz Roller Skate Bearings Carbon Steel Longboard Bearing Deep Groove for Skateboard Feature: 1. Load: It can withstand axial load and radial load in any direction 2. Circular arc raceway: The sections of the two raceways are simple circular arcs, which can be completed very accurately 3. Function: Low friction, low noise or vibration 4. High precision: Not easy to deform, high precision, long service life 5. Material: The bearing is made of high quality and durable carbon steel Specification: Certification: CE Origin: Mainland China Model Number: Ball Bearing Model: 623-ZZ Material: Carbon steel Size: Internal diameter (d): 3mm/0.12in Outer diameter (D): 10mm/0.39in Width (B): 4mm/0.16in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 10 X Bearings _x000D_