Product type and function 40Teeth 2GT tensioner pulley / idler pulley / guide pulley / regulating pulley Designed to guide and regulate 2GT belt routing, reduce belt chatter, and maintain consistent belt position under tension Key benefits — why you need this pulley Keeps belt tracking stable to prevent skipping and improve motion accuracy Acts as a dedicated tensioning or guiding point so drive systems run smoothly and respond predictably Available in tooth and smooth variants to match either toothed belt engagement or lowfriction guidance needs Important attributes Teeth number: 40Teeth Tooth options: with teeth and no teeth (smooth) Outside Diameter (OD): 24.95mm and 24.9mm Function: tensioner, idler, guide, regulating pulley for belt systems Compatibility: intended for 2GT belt systems using a 40tooth pulley profile Performance and practical advantages Precise tooth count and OD options support consistent belt pitch engagement and accurate motion transfer Choice of toothed or smooth profiles lets you select positive drive (toothed) or lowresistance guidance (smooth) depending on system requirements Useful as an adjustable tension or idler point to extend belt life and reduce maintenance frequency Typical use scenarios 1. 3D printers and small CNC machines: use as an idler or tensioner to maintain proper GT2 belt tension and improve print or cut accuracy 2. Robotics and pickandplace mechanisms: install as a guiding or regulating pulley to ensure repeatable linear motion and prevent belt derailment 3. Light conveyor or timing systems: employ the toothed variant for positive engagement where slippage cannot be tolerated, or the smooth variant where reduced friction is preferred Installation and selection tips Choose the toothed (with teeth) pulley for positive belt engagement and the smooth (no teeth) pulley when you need a lowfriction guide Confirm your belt system uses the 2GT profile and a 40tooth pulley for proper compatibility with the listed teeth number and OD values Match the OD (24.95mm or 24.9mm) to your assembly requirements to ensure correct spacing and alignment Specifications (as provided) Type: 40Teeth2GT tensioner pulley / idler pulley / guide pulley / regulating pulley Teeth Number: 40Teeth Teeth: With teeth and No teeth Outside Diameter (OD): 24.95mm and 24.9mm