ITEM NAME:SCS8UU Linear Motion Ball Bearing CNC Slide Bushing 34.5mm Length 4pcs E5U4 SCS8UU Linear Motion Ball Bearing CNC Slide Bushing 34.5mm Length 4pcs E5U4 Color: Silver Material: Metal Model: SCS8UU Internal diameter: 8mm / 0.315 " Length: 34.5mm / 1.36 " Weight: 210g Linear bearings is widely used to implement electronic devices, food machines, packaging machines, medical equipment, printing machines, textile machines, machinery, equipment, robots, tools, machinery, machine tools, automotive and digital three-dimensional coordinate measurement and other precision equipment. Package Included: 4 x linear ball bearing Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.