H3-FH13-B flender arpex coupling Helical gear boxes H3

Flender/Flender Gear Units/Helical gear boxes H3

er of virtual cylindrical gear mm dva Tip diameter of virtual cylindrical gear mm dvan Tip diameter of virtual cylindrical gear in normal section mm dvb Base diameter of virtual cylindrical gear mm dvbn Base diameter of virtual cylindrical gear in normal section mm dvn Reference diameter of virtual cylindrical gear in normal section mm * Pitch diameter of virtual cylindrical gear acc. FVA4 mm Modulus of elasticity (Young modulus) /mm2 Auxiliary factor for tooth form factor efn Tooth slot width at the bottom of the tooth space mm F1,F2 Auxiliary factors for mid-zone factor Fax Axial force Fmt Tangential force at mean diameter Fmtv Tangential force of virtual cylindrical gears Fn Normal force Fp Cumulative pitch deviation, total FpT Cumulative pitch tolerance, total FR Friction force Fr Runout deviation Frad Radial force FrT Runout tolerance mviii Symbols and Units Symbols Denition Units Ft Tangential force Fx Index deviation Fi Single-ank composite deviation, total rad/ Fi Double-ank composite deviation, total Fr Double-ank runout deviation Distance from mid-point to any line of contact mm fm Distance from mid-point to the mean line of contact mm fmax Maximum distance to the middle line of contact mm fpt Single pitch deviation fptT Single pitch tolerance flim Inuence factor of limit pressure angle fr Distance from mid-point to the root line of contact mm ft Distance from mid-point to the tip line of contact mm fi Tooth-to-tooth single-ank composite deviation rad/ fk Short-wave part of single-ank deviation rad/ fl Long-wave part of single-ank deviation rad/ fi Tooth-to-tooth double-ank composite deviation fe Eccentricity of double-ank composite deviation Movement of axis in case of sliding mm Auxiliary factor for tooth form factor NG Auxiliary value for integration of sliding velocity over path of contact an Length of the addendum part of the path of contact in the normal sectionmm gfn Length of the dedendum part of the path of contact