Complete Guide to Buying a Used Gear Machine

Gear machines cut or finish gear teeth to a defined quality (DIN/AGMA) class. The process — hobbing, shaping, grinding or shaving — depends on the gear type and the accuracy you need.

Which gear process?

• Gear hobbing: the most common way to cut external spur and helical gears and splines — productive for medium-to-high volume.
• Gear shaping: cuts internal gears, cluster gears and gears with shoulders where a hob can't reach.
• Gear grinding: finishing hardened gears to high quality classes (after heat treatment) — for precision, quiet, high-load gears.
• Gear shaving: a pre-heat-treat finishing step that improves tooth profile on volume automotive gears.

Pick the machine by the gear type (external/internal), module range, diameter and required quality class.

The specs that matter

• Max module and max gear diameter — your capacity ceiling.
• Max face width and helix angle capability.
• Work quality class the machine can reliably hold.
• CNC vs conventional — CNC gear machines set up faster and hold class more consistently.
• Tooling: hobs, cutters, grinding wheels and the change gears/setup — often a big part of the value.

Price bands in the Indian used market

A note on prices: figures below are broad indicative bands for the Indian used-machine market and move with age, spindle hours, brand, control generation and condition. Treat them as ballpark, not quotes — ask us for a current price against a specific machine.

• Conventional hobbing / shaping machine: typically ₹3–20 lakh.
• CNC gear hobber / shaper: typically ₹20 lakh to ₹1 crore.
• Gear grinding / large or high-precision machine: ₹50 lakh and up.

Capacity (module and diameter), CNC vs conventional, and included tooling drive price.

Common wear points to inspect

• Work and cutter spindle bearings: runout and noise — critical to gear quality.
• Index/worm gear train and backlash: the machine's own accuracy limits the gear's accuracy.
• Ways / slides: wear affects lead and profile consistency.
• Hydraulics and lubrication.
• CNC/control: supported generation, backups, and axis health under power.

Prove the quality

Ask to see the machine cut or finish a sample gear and, ideally, check it on a gear tester for profile, lead and pitch — the objective proof of the quality class it can hold.

Total cost of ownership

Budget for tooling (hobs/cutters/wheels), change gears or CNC setup, a solid foundation, 415 V power, coolant and installation. On gear machines, tooling and demonstrated accuracy matter as much as the iron.

Buyer checklist

• Right process for your gears (hob/shape/grind/shave)
• Module, diameter and face width fit your parts
• Achievable quality class confirmed
• Spindle runout/noise checked
• Index train backlash acceptable
• Sample gear cut and measured
• Tooling and change gears/setup included
• Control supported; backups available

Tell us your gear type, module, diameter and quality class and we'll match an inspected gear machine in stock and advise on tooling.