Blue Plastic Linear Ball Bushing 45mm 50mm Steel Ball Sliding Sleeve Guide Post Smooth Linear Motion

1 pcs blue plastic bushing assembly with steel ball sliding sleeve, cage, retaining ring and hollow guide column. Size: 5mmx45mmx100mm. Inner diameter: 45mm 50mm. Key benefits Smooth linear motion and reduced friction thanks to the steel ball sliding sleeve and cage design. Minimizes wear on shafts and mating parts. Accurate guidance and alignment for guide posts and hollow columns. The bushing keeps movement concentric and stable under load. Lightweight, durable plastic body reduces added mass while the steel ball elements provide reliable rolling contact for consistent performance. Hollow column design permits routing or weight reduction where required and simplifies installation in confined assemblies. Supplied as a single piece for straightforward replacement or retrofit work. Main attributes Dimensions: 5mmx45mmx100mm for predictable fit and clearance. Inner diameter: 45mm 50mm for compatibility with shafts and housings that accept those bore sizes. Materials: blue plastic bushing body combined with steel ball sliding sleeve and cage plus retaining ring to secure the assembly. Function: sliding sleeve and cage keep ball elements positioned and enable lowfriction axial and radial movement. Typical applications Industrial automation and machinery: worn guide bushings on linear guides or guide posts in presses and jigs. Mold and die equipment: restore concentric sliding for ejector pins or guide columns to improve repeatability. Prototyping and machine : retrofit into fixtures, robotics linkages, or sliding assemblies that require a hollow guided sleeve with ball support. Installation notes Designed for straightforward installation into compatible housings or onto guide posts with the stated inner diameters. Use the retaining ring and cage to secure placement and maintain ball alignment. This component provides a simple, serviceable solution for restoring or improving guided sliding motion where a compact hollow bushing with ball sleeve is required.