Specifications & Tolerances

ToothingPressure angle α=20° milled, soft
Gear quality gradeQ8 (in accordance with DIN 3962, 3963, 3967)
Outer surfacesGround on all sides
MaterialC45 (soft)
Cumulative pitch deviation Fp (over 1000 mm)0.150 mm
Cumulative pitch deviation Fp (over 2000 mm)0.225 mm

Diagram

Q8 straight toothed gear rack dimensions

Standard Dimensions

Model m p (mm) L1 (mm) z b (mm) hk (mm) ho (mm) Weight (kg)
ZST M2 - 24x24x1005 -G26.281005.31602424224.2
ZST M3 - 29x29x1017 -G39.421017.91082929266.0
ZST M4 - 39x39x1005 -G412.571005.38039393510.7
ZST M5 - 49x39x1005 -G515.711005.36449393413.1
ZST M6 - 59x49x1017 -G618.851017.95459494320.2
ZST M8 - 79x79x1005 -G825.131005.34079797144.3
ZST M10 - 99x99x1005 -G1031.421005.33299998968.7
ZST M12 - 120x120x1017 -G1237.701017.927120120108109.0

Legend

Symbols & Codes
  • m Module
  • p Pitch (p = m·π)
  • L1 Overall length (mm)
  • z Number of teeth
  • b Width (mm)
  • hk Height (mm)
  • ho Addendum height (mm)
  • ZST Standard gear rack (with mounting holes)
  • -G Straight
ESC