Gears for Construction Machinery and Equipment
Excavators, cranes, concrete mixers and drilling rigs need compact, high-torque gears that survive dirt and overload. We manufacture series and replacement gears for construction machinery builders.
Compact, High-Torque Drives in the Dirt
Construction machines pack a lot of torque into a small space and work in mud, dust and weather. Slewing drives turn upper structures, final drives move tracks and wheels, mixers turn drums, and cranes lift heavy loads – all with high peak loads and frequent starts.
Nika Gears manufactures the gears and shafts for these drives in series: planetary sets, pinions, ring gears, splined shafts and gearbox components, with consistent quality from batch to batch.
Typical requirements
- Loadhigh torque, overload
- Environmentdust, mud, weather
- Typical gearsplanetary, ring, pinion
- SupplyOEM series
- Materials18CrNiMo7-6, 20MnCr5, 42CrMo4
- Hardeningcase hardening, nitriding
Where Do Our Gears Run on Construction Machinery?
Slewing Drives
Slewing pinions and planetary reducer gears that turn excavator and crane upper structures on slewing rings.
- Planetary stages
- Hardened slewing pinions
Final Drives and Wheel Hubs
Sun, planet and ring gears for track final drives and wheel hub reducers.
- Matched planet sets
- Ring gears with flanges
Mixer Drums and Crane Winches
Gears and splined shafts for truck mixer drum drives, crane hoists and winches.
- Splined drive shafts
- Series production
Which Materials for Construction Machinery Gears?
| Application | Typical choice |
|---|---|
| Planetary sun and planet gears | 18CrNiMo7-6 or 20MnCr5 case hardened and ground |
| Ring gears | 31CrMoV9 nitrided or 42CrMo4 induction hardened |
| Slewing pinions | 18CrNiMo7-6 case hardened |
| Splined shafts | 42CrMo4 induction hardened |
Final material and heat treatment follow your drawing. We advise when the specification is open.
Which Gear Types for Construction Machinery?
Related industries: mining · marine · industrial machinery · all industries
Construction Machinery Gear Questions
Do you supply series parts for OEMs?
Yes. We manufacture repeat batches with dedicated tooling and batch inspection reports.
Can you make slewing drive gears?
Yes – slewing pinions, planetary stages and ring gears, up to Ø1,600 mm for internal teeth.
Can you replace gears in older machines?
Yes, from drawings or measured samples.
Gears for Construction Equipment Builders
Construction machinery is defined by power density: large forces from compact, mobile drives. Gears in excavators, cranes, loaders, mixers and drilling rigs are designed close to their limits and must still survive overloads, shock and contamination.
Planetary drives everywhere
Slewing drives, track final drives, wheel hubs and winches all use planetary gearboxes, because they deliver high torque in a compact, coaxial package. Each stage needs a sun gear, matched planets and an internal ring gear – all of which we manufacture.
Slewing pinions
The slewing pinion meshes with the large slewing ring of an excavator or crane. It is case hardened for wear resistance and must withstand impact when the upper structure stops. We produce slewing pinions as pinion shafts with splined input.
Series quality
Construction machinery builders order in series. We set up dedicated hobs and fixtures, inspect batches and keep the process stable so part 500 matches part 1. Material is traced by heat number to EN 10204 3.1 certificates.
Structures and frames
Welded frames, booms and brackets for the same machines can be produced by our sister company Nika Steelworks. Send your drawing for construction machinery gears from Türkiye.
Send a gear drawing. Get an answer within 24 hours.
Include the PDF or STEP file, module or DP, number of teeth, material, heat treatment, accuracy grade and quantity. We reply with questions or a quotation.