40 Pack SKU: 1823-29
4 Pack SKU: 1821-29
Pulleys and gears are the reason TeacherGeek was created. Before Teachergeek, pulleys were too expensive, too small, or had to be hot glued to shafts to make them work.
TeacherGeek Pulleys have a spline that allows them to push onto and rotate with a dowel shaft. They can be easily removed or changed for design revision and experimentation, yet they transfer impressive amounts of power. The unique pulley design allows for non-slip grip and easy exchange of rubber bands.
This 40 Pack contains 10 of the following sizes: 70mm, 55.5mm, 25.5mm, 9mm
This 4 Pack contains 1 of the following sizes: 70mm, 55.5mm, 25.5mm, 9mm
Science, Math & Engineering Standards
TeacherGeek products fit proposals, grants or lesson plans with ease! Explore more resources below:Next Generation Science Standards
NGSS Standards Download - PDF
NGSS Standards Spreadsheet - Editable /Searchable Excel Sheet
International Technology & Engineering Educators' Association Standards
ITEEA Standards Download - PDF
ITEEA Standards Spreadsheet - Editable/Searchable Excel Sheet