3D Printer 2GT20 Tooth Synchronous Wheel H-Type Pulley, Suitable for GT2 Synchronous Belt Width 6M A

Toothed idlers are appropriately used in place of bearings, by allowing the toothed belt to slide freely and lightly biting the toothed belt as it goes around a curve, thereby avoiding damage to the toothed belt.
With the correct flanges and windings to ensure that the belt maintains a constant tension throughout the stroke, which is never matched by the bearing
They use a standard 5 mm bore with double grub screw holes. Suitable for connection to most motors with 5mm NEMA17 shafts
High-quality aluminum, fine workmanship, smooth surface

Types:A-With Tooth
Colour:silver
Material:alloy
Size:
Bearing hole: 5mm
Outer diameter (OD): 18mm
Suitable belt width: 6mm

Package Contents:
5 x Gears

Only the above package content, other products are not included.
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.