Listed catalog prices for industrial gear motors span US$30-900 across AC, DC and servo classes, with the 100W-750W segment — the most quoted on Chinese B2B platforms — sitting in a US$100-120 band per unit at MOQ pricing [S5].
The same B2B listing shows premium worm-gear units with UL/CE approval at roughly US$100 and integrated servo motors (100W-7.5kW) at US$115-120, confirming that power class, gear geometry and certification together account for a 3-30x spread on otherwise comparable footprints [S5].
Price Bands by Power Class and Topology
Catalog data from 2026 puts three-phase AC gear motors in the US$30-900 band depending on kW rating, with 100W-5500W UL/CE-approved units at US$100-120 and higher-power three-phase AC motors at US$30-900 [S5].
On the EU side, Oriental Motor's MMD hypoid/helical gear-motor (100W-500W, 220/110/380V, right-angle hollow or solid shaft) is listed at €530-680 excluding tax, with their induction-spur KII series coaxial units priced at €120-240 [S2]. The MMD is specified to maintain efficiency above 85% across its speed range via hypoid gearing, a topology that consistently prices 2-3x above equivalent worm-gear units in the same power class [S2].
For DC and small-precision applications, Dongzheng's lineup covers brushed DC planetary, brushed DC spur, brushed DC worm, brushless DC planetary/spur, and planetary stepper variants — the topology choice itself can shift price by 1.5-2x within the same frame size [S3]. Max Power Gears, based in Valsad, India, offers a wide assortment of Parallel Shaft Gear Motors and H Series Helical gear products that are requested worldwide [S4].
What Actually Moves the Price
Five cost drivers dominate every gear-motor quote I have read in 2026 catalogs: power rating (W or kW), gear-train topology (worm, helical, hypoid, planetary, spur), efficiency class (IE1 vs IE2 vs IE3), certifications (UL, CE, CCC, ATEX where required), and order volume/MOQ tier [S1][S2][S5].
On the topology axis, worm gears are the cheapest because the geometry is simple and the tooling is universal, but efficiency typically lands in the 30-60% range; hypoid and helical cut from solid or shaved stock, which is why the Oriental Motor MMD can quote >85% sustained efficiency and command €530-680 for a 100-500W unit, while a worm-gear competitor in the same power band lists at roughly one-third of that price [S2]. Planetary gearheads add a third stage of precision and are the default choice for servo gearmotors in the US$115-120 segment on Made-in-China [S5].
For a complete overview of how gear geometry maps to torque, backlash and efficiency, the helical gear reducer reference lays out the trade-off in spec terms. Where the application demands right-angle output at low noise, a crossed-roller guide on the driven load is often paired with a hypoid gearmotor, because both share tight angular-contact tolerances.
Certified vs Non-Certified: The Hidden Multiplier
UL/CE-approved worm-gear units are explicitly flagged on Made-in-China at a US$100 price point, compared with uncertified three-phase equivalents in the US$30-900 spread — a 10-30% premium is typical for the same kW rating once third-party approval is added [S5].
For hazardous-area deployments (oil & gas, grain handling, paint lines), ATEX/IECEx-rated gearmotors add 40-80% over a standard industrial unit of the same power, because the motor frame, terminal box and breather all have to be documented and the gearhead seals upgraded. ATEX 2014/34/EU governs equipment for explosive atmospheres in the EU, and the parallel IEC 60079-x series covers the international/IECEx route — these are the two compliance paths you will see on EU and global quotes respectively.
For motor-side protection, sizing the upstream VFD-duty motor protection and feeder correctly avoids the most common warranty-voiding failure: voltage peaks at the motor terminals that hammer the winding insulation long before the gearbox ever wears.
Side-by-Side Comparison: Common Gear-Motor Classes
Listing catalog units on the same four decision axes clarifies where each topology earns its money. The table is built only from 2026 listing data, so each cell reflects a real SKU, not a generic [S2][S5].
AC worm-gear (UL/CE, 100W-5500W) — Power: 0.1-5.5kW. Efficiency: ~30-60%. Typical price: ~US$100. Best fit: low-duty, intermittent, conveyor/agitator where initial cost dominates.
AC helical/hypoid MMD (100-500W) — Power: 0.1-0.5kW. Efficiency: >85% sustained. Typical price: €530-680 (US$570-735 at parity). Best fit: continuous-duty, IE3-mandated sites, right-angle mounting [S2].
AC induction-spur KII coaxial (ORIENTAL MOTOR) — Power: low hundreds of W. Efficiency: standard induction. Typical price: €120-240 (US$130-260). Best fit: cost-sensitive inline applications where right-angle is not needed [S2].
Servo motor + planetary gearbox (100W-7.5kW) — Power: 0.1-7.5kW. Efficiency: motor + gearbox combined, typically 70-85%. Typical price: US$115-120 base + gearbox. Best fit: indexing, CNC, robotics where dynamic response and low backlash are non-negotiable [S5].
Brushed/brushless DC planetary (Dongzheng) — Power: small fractional. Efficiency: 60-80%. Typical price: project-dependent. Best fit: battery-powered, solar tracker, pool cleaner, mobile robot — see Dongzheng's application catalog for linear motor-style positioning axes in robotics [S3].
Total Cost of Ownership: Purchase Price Is the Smaller Number
For any gear motor running more than one shift, energy cost over a 5-year horizon typically exceeds the purchase price by 3-10x, which is exactly why the IE3 MMD commands a 2-3x premium over an equivalent worm unit despite identical output torque [S2].
A 400W worm-gear motor at 50% efficiency draws roughly 800W from the line; the same mechanical output from a hypoid MMD at 85% draws 470W. Across 8,000 hours/year and US$0.10/kWh, the worm unit costs about US$264/year extra in electricity — so a US$300 purchase-price gap pays back inside 14 months on energy alone, before you count reduced motor cooling and longer bearing life.
Maintenance is the second TCO axis. Hypoid and helical gearheads from the major Japanese-licensed lines are greased for life and sealed, so the planned-maintenance line item collapses to bearing inspection on the driven load. Worm units, by contrast, need periodic re-greasing and oil checks, and worm-gear wear typically limits them to a 10,000-20,000 hour service life in continuous duty versus 30,000+ hours for hypoid/helical pairs of the same size [S2].
For installations that also need to instrument the driven machine, plan headroom in the cabinet for a microprocessor motor protection relay — it is the cheapest insurance against the single most expensive failure mode: a locked-rotor event that takes the gearbox with it.
Sourcing Channels and What to Verify on Each
Four channels dominate 2026 gear-motor procurement: OEM-direct (Oriental Motor, SEW, Nord, Siemens-flange), Tier-1 Chinese B2B catalogs (Made-in-China, DirectIndustry aggregator), regional stockists (Motor Gear Trader in Canada, RS, Allied, WAGO in EU), and factory-direct Asian OEMs (Dongzheng, Max Power Gears, Hansheng) [S1][S3][S4][S5][S6].
The DirectIndustry aggregator lists 5 manufacturers / 9 products in its motor-gear vertical as of the 2026-06-25 snapshot, which is small enough that you can read every datasheet before issuing the PO [S1].
Regional stockists like Motor Gear Trader (Canada) are useful for sub-1kW replacement units on a downtime-driven timeline, but rarely carry IE3-certified hypoid gearmotors in depth [S6]. Factory-direct Asian sourcing — Dongzheng for DC/servo-class, Max Power Gears for parallel-shaft/hypoid — is where the 15-30% landed-cost savings live, provided you accept longer lead times (typically 30-60 days versus stockist 3-7 days) and you batch orders to MOQ [S3][S4]. For a fuller TCO discussion that pairs motor selection with cabinet and feeder layout, the distribution cabinet price breakdown piece covers the upstream side of the same project.
Where a gearmotor feeds a linear guide axis — a common build in pick-and-place and packaging — verify the gearbox output torque and inertia ratio against the linear-axis load; an undersized gearbox will not fail on day one, it will fail at 8,000-12,000 hours when the cumulative backlash stack finally exceeds the system's repeatability spec. Trackable signal to watch next: any revision to the IEC 60034-30-1 efficiency-class boundary that would re-tier the US$100-120 mid-power segment, and the IMTS 2026 OEM announcements (14-19 September 2026, Chicago) where Oriental Motor and competitors typically refresh IE4+ lines [S2].