CBN and conventional gear grinding to AGMA 15 quality class. Tight tolerances, controlled tooth geometry, and superior surface finish for spur and helical gears up to 700mm diameter.
Gear grinding removes material from hardened gear flanks with abrasive wheels to achieve tighter tooth profile tolerances, lower surface roughness, and higher geometry accuracy than hobbing alone can deliver.
Our grinding, including CBN (Cubic Boron Nitride) gear grinding, produces gears that hold up where noise, vibration, load capacity, and service life actually matter. We use CBN grinding for efficient medium-to-high-volume production and have refined the process across years of automotive, aftermarket, and OEM work. We finish-grind spur and helical gears from 2 to 48 diametral pitch, up to 700 mm in diameter, to AGMA 15.
Applications include robotics joints, medical motion systems, defense mechanisms, precision gearboxes, and any system where gear quality directly determines system performance.
Ground gears beat hobbed-only gears on every measure that counts, and the gap matters most when the gear is what keeps the whole machine reliable.
Precise tooth profile control and superior surface finish (Ra) significantly reduce gear mesh noise. Critical for medical devices, robotics, and packaging equipment where noise is a performance or regulatory parameter.
Tight lead and profile tolerances produce consistent gear meshing. Minimized transmission error reduces vibration in high-speed gearboxes, servo drives, and motion control systems.
Heat-treating and grinding increase tooth strength and optimize tooth contact. Hard, ground gears handle high transmitted loads with greater reliability than soft, cut-only gears.
Tight, repeatable tooth geometry from part to part across full production runs. Ground gears deliver predictable, repeatable performance every time.
We run a set of CNC gear grinders, several of them CBN-capable, which gives us the precision and the capacity to handle demanding OEM programs.
| Machine | Type | Capacity | Notes |
|---|---|---|---|
| Hofler Helix 700 | CNC Gear Grinder | Up to 700mm diameter | High-accuracy profile and lead grinding |
| Reishauer RZ701 | CNC Gear Grinder | AGMA 15 capable | Continuous generating grinding |
| Reishauer RZ300E | CNC Gear Grinder | AGMA 15 capable | Continuous generating grinding |
| Liebherr LCS 282 (×2) | CNC Autoload Grinder | Automated loading | High-volume production grinding |
| Reishauer AF Cooling System | Grinding Support | — | Precision coolant control for thermal stability |
| Reishauer AM-10 Wheel Dresser | Dressing System | — | Automated wheel dressing for profile consistency |
| Max Grinding Diameter | 700 mm (27.6") |
| AGMA Quality Class | Up to Class 15 |
| Gear Types | Spur, External Helical |
| Grinding Method | CBN & Conventional Generating |
| Module Range | Consult engineering |
| Profile Tolerance | Per AGMA 2015 / ISO 1328 |
| Lead Tolerance | Per AGMA 2015 / ISO 1328 |
| Surface Finish | Ra per application requirement |
| Inspection | 100% analytical gear inspection |
| Documentation | Full CMM / inspection reports |
Precision ground gears from INSCO serve demanding applications across:
Low backlash, low noise, high accuracy for robotic joint actuators and servo gearboxes.
Precision worm gears and helical gears for medical OEMs building mammography and surgical positioning systems.
Ground gears for weapon systems, actuation mechanisms, and aerospace drive systems requiring certified quality documentation.
Transmission gears for industrial automation and motion control requiring minimal vibration and long service intervals.
Submit your gear specifications and our engineering team will respond with a detailed grinding quote and lead time.
Request a Grinding Quote