Recent Blogs
Hirth Coupling Indexing: Ideal Pitch and Angle Calculator | FIRGELLI
Find the nearest whole-tooth index, angular pitch and target residual for an entered tooth count. Manufacturing accuracy, repeatability and torque capacity are not calculated.
Curvic Coupling Mechanism: How Self-Centering Face Teeth Work, Parts, Formula and Uses
Explore curved annular coupling teeth, ideal two-flank preload forces and local flank movement. Learn why summed force magnitudes are not a net centering force.