Jkjlorey 3D Printer VzBoT Vz235 Idler with 2GT Gates 6MM Belt Kit 20T Timing Pulley Bore 5mm 40T Bore 8mm

Smoothed Idlers are purposely designed, with correct flanges and clearance to a belt retains a constant tension throughout its entire stroke in a way bearings could never match. Toothed Idlers used appropriately in place of bearings prevent damage to the belts teeth by allowing it to glide freely and gently cups its teeth as it traverses around the curve. The idler uses a high-precision machine to produce a finish of Ra0.4um for smoother use.