Ball bearing pulley

4pcs U Groove Nylon Round Pulley Ball Bearing Wheel Roller for Door Windows Shower Pulleys Drawer

1pc/4pcs U Groove Nylon Round Pulley Ball Bearing Wheel Roller for Door Windows Shower Pulleys Drawer

Pom 8X40X10Mm U Type Groove Ball Bearing Wheel Pulley Roller Delrin Wheel

20Pcs V623Zz V Ball Bearing Pulley For Rail Track Linear Motion System 3X12X4Mm

Nylon Roller Bearings 0840UU 8mm Groove Guide Pulley Sealed Rail Groove Ball Bearing Wheel

10Pcs V624Zz V Ball Bearing Pulley For Rail Track Linear Motion System 4*13*6Mm

10Pcs U624Zz U Groove Ball Bearing Guide Pulley For Rail Track Linear 4*13*7Mm

Three Bead Universal Wheel No Drilling Silent Wear-resistant Load-bearing Small Household Pulley Three Ball Universal Wheel Ball Without Drilling

4pcs Zinc Alloy Flat/Concave Wheel Slide Doors Window Pulley U-type Ball Bearing Wheel Roller Plastic Steel Hardware Accessories

4PCS Pulley Steel Cable Pulley V Trough Lifting Wheel For Ropes 1-8mm Cable Pulley With 2 Ball Bearings Heavy Duty Wheel