Cylindrical Gear Design Buy the book
EnglishItaliano
GearLAB · Transmission Technology Expertscylindricalgears.com/trainings
Trainings

Training programme

Three one-day engineering courses on cylindrical gears, shafts and bearings, and gear NVH, plus the full catalogue of KISSsoft and KISSsys courses. Delivered by GearLAB in-company or online, in English or Italian.

Format
In-company or live online
Language
English or Italian
Schedule
08:30–17:00 per day
Software
KISSsoft and KISSsys
Day 108:30–17:00 · KISSsoft hands-on · 2 exercises

Cylindrical gears: macro, micro & contact analysis

A one-day engineering training on designing, rating and optimising cylindrical gear pairs with KISSsoft.

What you will be able to do

  1. Read every number of a gearUnderstand the involute, the reference profile and every value on a gear drawing and in a KISSsoft report.
  2. Size a gear pairChoose centre distance, module, teeth, helix angle and profile shift for strength, efficiency and noise.
  3. Rate it to ISO 6336Know where pitting and root stresses come from and which K-, Z- and Y-factors drive the result.
  4. Design the microgeometrySpecify lead and profile modifications for the real load, including manufacturing tolerances.
  5. Verify with LTCAInterpret transmission error, load distribution, KHβ, contact patterns and stress peaks.
  6. Work efficientlyUse the sizing and modification-sizing tools to explore hundreds of variants in minutes.

Agenda

TimeModuleTopics
08:30 – 10:00Involute fundamentalsGearing law, involute, reference profile, profile shift, contact ratio
10:15 – 11:30MacrogeometryBasic geometry, centre distance, tools, backlash, accuracy, inspection
11:30 – 12:30Load capacity & sizingISO 6336 pitting and root strength, K-factors, sizing workflow
13:30 – 15:00MicrogeometryProfile and lead modifications, three-step design procedure
15:15 – 16:30Loaded tooth contact analysisStiffness model, TE, KHβ, load distribution, planetary stages
16:30 – 17:00Exercises & wrap-upHands-on KISSsoft cases, questions, key takeaways

Participants receive the 130 course slides. The slide deck is also available as a PDF.

Day 208:30–17:00 · KISSsoft hands-on · 3 exercises

Shafts & bearings: calculation and optimisation

A one-day engineering training on shaft modelling, shaft strength, rolling bearing life, inner geometry and rotor dynamics with KISSsoft.

What you will be able to do

  1. Choose the right bearingKnow bearing types, components, designations and the criteria for selecting them.
  2. Model a shaft systemBuild shafts, loads and supports in KISSsoft and read deflection, force and moment diagrams.
  3. Prove shaft strengthApply DIN 743 (and FKM) for fatigue and static strength, including notch effects.
  4. Predict bearing lifeUse ISO 281 and ISO/TS 16281 with lubrication, contamination and load spectra.
  5. Control clearance and fitsDefine fits, operating clearance, preload and locating/non-locating arrangements.
  6. Avoid resonanceCompute bending and torsional eigenfrequencies, critical speeds and bearing defect frequencies.

Agenda

TimeModuleTopics
08:30 – 09:30Rolling bearing fundamentalsComponents, types, designation, selection, failure causes
09:30 – 10:30Shaft modellingShaft editor, supports, beam models, results, coaxial systems
10:45 – 12:00Shaft strengthDIN 743, notch factors, Smith diagram, FKM, static strength
13:00 – 14:15Bearing lifeISO 76, ISO 281, aISO, lubrication, contamination, load spectra
14:30 – 15:45Inner geometry, fits & arrangementsISO/TS 16281, clearance, stiffness, fits, X/O arrangements
15:45 – 17:00Shaft dynamics & wrap-upEigenfrequencies, critical speeds, defect frequencies, exercises

Participants receive the 126 course slides. The slide deck is also available as a PDF.

Day 308:30–17:00 · KISSsoft & KISSsys · 3 exercises

Gear NVH: dynamics, transmission error & gear noise

A one-day engineering training on where gear noise comes from, how it travels and how to measure, predict and reduce it.

What you will be able to do

  1. Classify gear noiseTell whine, rattle and other gear noises apart and name their sources.
  2. Predict the frequenciesCompute shaft, mesh, sideband and planetary frequencies and read a spectrum.
  3. Measure and judge soundChoose descriptors, weightings, bandwidths, transducers and averaging methods.
  4. Use transmission errorUnderstand STE, DTE and mesh stiffness as the main whine excitation.
  5. Model gear dynamicsBuild 2-, 3- and multi-DOF models and read natural frequencies and mode maps.
  6. Close the loopConnect LTCA, shafts, bearings and housing into a system NVH prediction.

Agenda

TimeModuleTopics
08:30 – 09:45Gear noise fundamentalsNoise types, source–path–receiver, excitations, accuracy and inspection
10:00 – 11:00Gear frequencies & signal analysisShaft and mesh frequencies, sidebands, averaging, order analysis, planetaries
11:00 – 12:30Sound measurement & perceptionDescriptors, weightings, bandwidths, test set-ups, intensity, whine rating
13:30 – 14:30Transmission errorDefinition, history, STE vs. DTE, mesh stiffness, TE spectrum
14:30 – 16:00Gear dynamics2DOF, 3DOF, multi-DOF models, natural frequencies, mode maps
16:15 – 17:00System NVH & wrap-upHousing, MBD, virtual sensors, correlation, exercises

Participants receive the 115 course slides. The slide deck is also available as a PDF.

GearLAB · KISSsoft · KISSsys

Course catalogue

Longer KISSsoft and KISSsys courses, delivered on request and tailored to your products and standards.

Cylindrical gears: basic module

2 days

Design and verification of cylindrical gears with KISSsoft

  • UNI, DIN, ISO and AGMA standards; reading and drafting gear drawings
  • Involute geometry, profile shift, centre distance and backlash
  • Reference profiles, quality and tolerances, hobbing, skiving, grinding, shaving
  • ISO 6336 strength: bending, pitting, materials, heat treatment, load spectra
  • Design and macrogeometry optimisation of a gear pair
  • Introduction to NVH, contact analysis and microgeometry

Cylindrical gears: NVH analysis and optimisation

2 days

Optimisation of gear noise with KISSsoft

  • Involute geometry, contact and overlap ratio, gear quality and noise
  • Microgeometry to ISO 21771: profile and lead modifications
  • Decibels, dB(A), NVH basics, Kato and Masuda noise formulas
  • Loaded tooth contact analysis, transmission error, Harris maps
  • Structure-borne and airborne noise propagation
  • Excitation frequencies: Fourier analysis, Campbell diagram, bearings, rattle and whine

Gear metrology and manufacturing errors

1 day

Gear metrology and functional interpretation of inspection charts

  • Dimension over balls or pins and span measurement: calculation and measurement
  • Measuring instruments: involute testers, single- and double-flank testers, CMM, laser
  • Profile and lead according to ISO 21771 and DIN 3960
  • ISO and DIN tolerances, K-charts for profile and lead
  • Profile, lead, pitch, runout and rolling deviations
  • Critical reading of an inspection report

Bevel gears: basic module

2 days

Verification and design of bevel gears with KISSsoft

  • Cutting methods: face hobbing and face milling, cone types, virtual cylindrical gear
  • Strength rating, scuffing (ISO/DTS 10300-20) and flank fracture (ISO/DTR 19042)
  • Rough and fine sizing of bevel and hypoid gears
  • Contact analysis, EPG displacements from KISSsys, contact pattern and TE
  • Design processes with GEMS® and 5-axis milling, 3D models, topological modification

Plastic gears: standards and design

2 days

Small cylindrical and crossed helical gears in plastic or sinter material

  • Plastic and sinter materials, tribology and failure modes
  • VDI 2736 strength, temperature and wear calculation
  • Contact analysis, noise and operating backlash optimisation
  • Tooth form for the injection mould, shrinkage, wire erosion
  • Crossed helical and worm gears: efficiency, self-locking, wear
  • Plastics Manager: measuring and evaluating fatigue data

Worm gears: basic module

1 day

Verification and design of worm gears with KISSsoft

  • Worm types (ZI, ZA, ZK and more)
  • Strength calculation to ISO, AGMA and BS
  • Efficiency
  • 3D model generation
  • Plastic–steel pairs: strength and tooth form optimisation
  • KISSsoft exercises

Splines: geometry, strength, modifications

1 day

State-of-the-art design of splined connections

  • DIN 5480, ISO 4156 and ANSI B92.1
  • AGMA 945-A18 and the main strength calculation methods
  • Microgeometry of splined connections
  • 3D export and surface models

Shafts and bearings: basic module

2 days

Verification and design of shafts and bearings with KISSsoft

  • Shaft modelling, deformations and stresses
  • Static and fatigue strength
  • Bearing life to ISO 281, with and without contamination
  • Influence of stiffness and preload; vibration overview
  • Coaxial shafts and bearing analysis to ISO/TS 16281
  • KISSsoft exercises

KISSsys: gearbox modelling

2 days

Gearbox modelling in KISSsys: basics, application cases and hands-on session

  • Interface, user and administrator mode, templates
  • Kinematics, power flow and system-level safety, life, weight and cost
  • Single-shaft models: two-stage industrial and bevel gearboxes
  • Special kinematics: two outputs, three-gear chains, power splits
  • Coaxial shafts and planetary stages with spline connections
  • A complete gearbox as a final exercise

KISSsys: planetary gearboxes

1 day

Focus on KISSsys modelling of planetary gearboxes

  • Kinematics of simple and compound planetary stages
  • Tooth contact analysis with shafts, bearings and planet carrier
  • Load spectra for gears, shafts and bearings
  • Efficiency, power losses and thermal rating

Automotive: EV drive

3 days

KISSsys modelling of automotive transmissions for electric and hybrid drives

  • KISSsys templates and modelling workflow for e-drives
  • Exercise: two-stage gearbox for electric traction
  • System contact analysis and ISO 21771 microgeometry
  • System efficiency, thermal rating and battery sizing
  • NVH of e-drive gears: TE, Harris maps, excitation frequencies, whine and rattle

Book a course

Write with the course you are interested in, the number of participants and the preferred dates and format. You will receive a programme tailored to your team and a quote.