Grant McIntyre
6563235
oject 1
One-Stage Helical Gear Drives:
Grant McIntyre
6563235
Kinematic Design & Bearing Selection
Design Project 1
Grant McIntyre
6563235 1
, 2
Design Requirements
Maxon brushless DC motor – EC90 flat ⌀90mm, brushless, 260W with hall sensors.
PT# 500269
Technical Specifications
Normal Voltage 18V Max. Efficiency 87%
No Load Speed 2110rpm Ambient Temperature -40-+100⁰C
No Load Current 830mA Max, Winding Temperature +125⁰C
Nominal Speed 1790rpm Max Speed 5000rpm
Nominal Torque 1010mNm Stall Torque 14800mNm
Normal Current 12.1A Stall Current 183A
Axial Play 0.14@40N Max. Force for fits (static) 440N
(Static, shaft supported) 8000N
Max. Axial Load(dynamic) 34N Max. Radial Load 130N @
10mm
Design Specifications
Speed of Input Shaft 1790rpm
Torque on Input Shaft 1.01Nm
Kinematic Design of the Gear Reducer
Design Requirements
Parallel Shafts
Gear Module 1.5mm
Gear Ratio (+/- 5%) 4.5
Nominal Centre Distance of
Shafts 91.5mm
Gear Specifications
KHG1.5-22RJ12 KHG1.5-100LJ20
Number of Teeth 22 Number of Teeth 100
Helix Direction Right Helix Direction Right
Normal Pressure Angle øn 18.71⁰ Normal Pressure Angle øn 18.71⁰
Helix Angle ᵠ 21.5⁰ Helix Angle ᵠ 21.5⁰
Transverse Pressure Angle øt 20⁰ Transverse Pressure Angle øt 20⁰
Pitch Diameter 33mm Pitch Diameter 150mm
Grant McIntyre Gdm340@uowmail.edu.au 6563235
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