Helical Gear Manufacturer and Supplier in Türkiye
We manufacture helical gears and helical pinions for quiet, high-load gearboxes – hobbed, hardened and profile ground, supplied as single gears or matched pairs.
- Ø1,800 mmmax. diameter
- to drawinghelix angle and hand
- Module 30max. module
- Ø1,250 mmprofile grinding
- Pairsmatched sets
Quieter, Stronger Gears for Parallel Shafts
In a helical gear the teeth are cut at an angle to the axis. Several teeth are in mesh at the same time and engagement builds up gradually, so helical gears run quieter and carry more load than spur gears of the same size. That is why most modern industrial gearboxes use helical stages.
Nika Gears produces helical gears, helical pinion shafts and matched helical gear pairs with the helix angle, hand and profile modifications specified on your drawing.
At a glance
- Diameterup to Ø1,800 mm
- Module0.5 – 30
- Helix angleto drawing, typically 8–30°
- Handleft or right
- Accuracyto DIN 3962 grade 5
- Finishinghobbed or ground
- Supplysingle gears or pairs
Helical Gear Variants
Helical Gear Wheels
Helical wheels with hubs, keyways or splined bores for gearbox output and intermediate stages.
- Wide face widths
- Bolt-hole flanges and webs
- Shrink-fit or keyed
Ground Helical Gears
Case-hardened and profile-ground helical gears with lead and profile corrections for low noise under load.
- Niles profile grinding
- Lead crowning and tip relief
- Gear measurement report
Matched Helical Pairs
Gear and pinion produced and inspected together, with opposite helix hands and checked contact.
- Opposite hands
- Centre distance verified
- Packed as a set
Helical Gear Specifications: What Can We Make?
| Parameter | Range |
|---|---|
| Outside diameter | up to Ø1,800 mm |
| Module | 0.5 to 30 |
| Helix angle | to drawing, left or right hand |
| Profile modifications | tip and root relief, lead crowning, end relief |
| Accuracy grade | DIN 3962 / ISO 1328, down to grade 5 ground |
| Grinding capacity | Ø1,250 mm, module 25, 450 mm face width |
| Materials | 18CrNiMo7-6, 20MnCr5, 17CrNiMo6, 42CrMo4, 34CrNiMo6 |
| Heat treatment | case hardening, nitriding, induction hardening, quench and temper |
Ranges are typical. Send your drawing and we confirm feasibility for your exact part.
Axial Thrust and Bearing Selection
The angled teeth of a helical gear create an axial force proportional to the tangential load and the helix angle. Bearings and housings must take that thrust. Where thrust is a problem, a double helical or herringbone gear cancels it out.
When you send a drawing, include the mating gear and the centre distance – we check the helix hands and the contact pattern before release.
- Opposite hands on mating gears
- Thrust checked against bearing layout
- Contact pattern on request
Where Do Our Helical Gears Run?
Industries that use our helical gears: industrial machinery · steel and metal · power generation · plastic and rubber
Questions About Helical Gears
Can you grind helical gears?
Yes, up to Ø1,250 mm, module 25 and 450 mm face width, with profile and lead corrections.
Do you supply helical gears in pairs?
Yes. We produce gear and pinion together with opposite helix hands, check the mesh and pack them as a set.
What helix angles can you cut?
The helix angle on your drawing, left or right hand. Typical industrial values are 8° to 30°.
Helical or spur – which should I use?
Helical gears are quieter and stronger; spur gears are simpler and create no axial thrust. See our spur gear page for comparison.
Helical Gears: Why They Run Quieter and How We Make Them
Helical gears transmit power between parallel shafts like spur gears, but their teeth are cut along a helix. The contact line moves diagonally across the tooth face, so load is shared by more than one tooth pair at any moment. The result is smoother engagement, lower noise and higher load capacity – the reasons helical gears dominate modern industrial gearboxes.
Manufacturing helical gears
Helical teeth are cut by hobbing with the hob head swivelled to the helix angle, or by gear shaping with a helical guide for internal and shoulder gears. For case-hardened gears, heat treatment is followed by profile grinding to restore accuracy and add lead crowning and tip relief, which reduce noise and edge loading under deflection.
The thrust question
Every single helical gear generates axial thrust. Gearbox designers handle it with taper roller or angular contact bearings, or by choosing double helical gears that cancel the thrust internally. If you are replacing a gear, we keep the original helix angle and hand so the bearing loads do not change.
Helical pinion shafts
Many helical pinions are cut directly on the shaft. We turn, hob, harden and grind these as one part – see pinion shafts. For a complete gearbox gear set, including helical stages, cluster gears and hubs, see gearbox components.
Inspection
Helical gears are checked for profile, lead and pitch deviations, runout and tooth thickness, with results reported against the DIN 3962 grade on your drawing. Material is traced to EN 10204 3.1 certificates. See quality for the full scope.
Nika Gears is a helical gear supplier in Türkiye working for European machinery builders. Send your drawing for a quotation.
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.