This document defines the geometry and dimensions of hypotrochoidal connection profiles (H-profiles). The hypotrochoidal curves (H-profiles) offer technically interesting contours for modern positive shaft-hub connections. The characteristics of the H-profiles are the possibiliti
DIN 3689-1:2021 history
2021DIN 3689-1:2021 Shaft to collar connection - Hypotrochoidal H-profiles - Part 1: Geometry and dimensions
1970DIN 3689-1 E:2020-09 Shaft to collar connection - Hypotrochoidal H-profiles - Part 1: Geometry and dimensions