Crossed axis helical gears

ZE1 Geometry of crossed helical gears
for cylindrical worms and cylindrical worm wheels
Crossed helical gears with external and internal teeth
Control measurements for worms (measurement over 3 pins) and worm gears (measurement over balls)
Graphical analysis of meshing when shaft angle is not equal to 90° and in multiple section levels
Graphical display of specific sliding
Collision check
Rights: Z17, Z17h, Z17i

ZE2 Strength according to ISO 6336/Niemann, Hirn method
Rights: Z17a

ZE6 Fine sizing of macrogeometry for crossed helical gears
Rights: Z17n

General

• Strength rating along ISO 6336 (modified along Niemann), along Hoechst for worm gears and along Hirn for worm gears. For plastic gears along VDI 2545 and VDI 2736
• Calculation of theoretical backlash, acceptance, and operating backlash
• Calculation of flank, root and scuffing safety factor with single load or load spectrum
• Output of control measures like dimension over pins and balls
• With rough and fine sizing function

Configurations

• For plastic and metallic materials
• Calculation with lead or helix angle
• Calculation of meshing efficiency
• For worm type or helical gear type mesh (any helix angle)
• Tooth form calculation with modifications like tip and root relief, chamfer, tip rounding, elliptic root rounding for improved noise and strength properties