Published gear grinding capability
Ondrives' current published capability covers precision spur and helical gear grinding across a broad module and diameter range, including larger components subject to geometry, machine access and process suitability.
Back to top ↑
Profile and lead modification
Published Ondrives capability includes profile and lead changes such as tip or root relief, profile crowning, lead crowning and end relief. These modifications are used when the application requires controlled contact behaviour rather than a nominal unmodified flank.
Back to top ↑
Grinding and inspection belong together
Profile, flank line (lead/helix), pitch and runout information provide the feedback required to verify the finished gear. For development work, inspection results can also support controlled adjustment of the manufacturing process.
Back to top ↑
When grinding may be appropriate
Grinding is commonly considered after heat treatment where higher accuracy, controlled tooth-flank surface texture Ra / Rz, transmission behaviour or defined microgeometry are required. Surface texture is specified separately from gear flank-form accuracy; the route depends on component and duty.
Back to top ↑
Need help with a specific gear?
Send Ondrives the drawing, model or available gear data. For new designs, include the operating duty and mating-component information so the manufacturing route can be reviewed in context.
Profile, lead and finishing detail
Grinding can establish final flank accuracy after heat treatment and can also introduce controlled microgeometry. Those modifications must be defined deliberately and verified by analytical inspection.
Profile modification
Intentional changes along the involute can include tip relief, root relief, profile crowning or other specified corrections. They are used to manage load, deflection, noise and edge conditions rather than simply to change nominal tooth size.
Flank-line (lead) modification
Lead crowning Cβ, helix correction and end relief alter contact across face width b. On a helical gear these are assessed relative to nominal helix angle β. Targets depend on alignment, shaft/bearing deflection, housing behaviour and load distribution.
Grinding and inspection loop
Profile Fα, helix Fβ, pitch Fp and runout Fr measurements verify the process against the drawing. A quality grade must be quoted with its governing standard.
Where a gear is ground after hardening, the drawing should make clear which datums and adjacent diameters are final before or after heat treatment, the stock allowance, required flank finish and any microgeometry.