OctagonStar 2pcs KFL08 8mm Zinc-Aluminum Alloy Flange Pillow Block Bearing

OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine（2PCS）

Eowpower 5Pcs Linear Motion Shaft 8mm X 100mm Round Hardened Lathe Bar Rod

Magic&shell 2-Pack 8mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Accessory Rigid Flange Guide Shaft Coupler Motor Connector

Uxcell a17053100ux0131 Uxcell a17053100ux0131 4pcs KFL08 8mm Zinc Alloy Self Aligning Pillow Block Flange Bearing, Zinc (Pack of 4)

Two (2) 8mm x 406mm (.315" x 16") Case Hardened Chrome Linear Motion Rods/Shafts/Guides - Metric G6 Tolerance

Eowpower 4Pcs 8mm Bore Diameter Ball Mounted Pillow Block Insert Bearing

BIQU GT2 Synchronous Wheel 60 Teeth 8mm Bore Aluminum Timing Pulley for 3D Printer 6mm Width Belt (Pack of 2pcs)

OctagonStar KP08 8mm Bore Inner Ball Mounted Pillow Block Insert Bearing (2pcs)

ExcelFu Big Plastic Pulley Wheel with Bearing Idler Pulley Gear Perlin Wheel for 3D Printer, Pack of 10

Eowpower Linear Motion 8mm Shaft - 330mm Length Round Hardened Lathe Case Hardened Bar Rod