Gear Parts
Spur, helical, planetary, worm gears
- Material 20CrMnTi, 40Cr, SS 304, bronze C90700, nylon PA66
- Process Hobbing, shaping, gear grinding, heat treatment, honing
- Accuracy GB/T 10095-2008 grade 6-7
- Lead Time 20-35 days
Product Details
Gears are core components of mechanical transmission for power and motion. We customize module, profile and accuracy per your drawing or sample — covering spur, helical, internal ring gears, bevel gears and dual-tooth composite parts, with hobbing, shaping, gear grinding, tooth-end relief and crowning, achieving flank Ra0.4-0.8 and GB/T 10095 grade 6-7 (ground gears up to 4-5).
Applications
- Gearbox gear sets
- Automotive transmission gears
- Construction machinery gears
- Servo motor planetary gears
- Industrial timing gears
Typical Size Range
- Min
- Module M0.5
- Max
- OD Φ800mm
- Other
- Face width ≤300mm
Common Materials
| Material Grade | International Standard | Typical Application |
|---|---|---|
| 20CrMnTi | AISI 4118 | Carburized gears, the most common |
| 40Cr | AISI 5140 | Quenched & tempered, medium load |
| Bronze C90700 | C90700 | Worm wheels, sliding gears |
| Nylon PA66 | PA66 | Low-noise, light-load gears |
Process Capabilities
- Hobbing (module 0.5-20, grade 6-7)
- Shaping (internal rings, dual gears)
- Bevel gear shaping (cone angle ±10′)
- Gear grinding (grade 4-5, Ra0.4)
- Flank honing (noise reduction)
- Tooth-end relief / crowning
- Heat treatment (carburizing, nitriding)
Gear Parts Part Gallery
Finished parts and typical process features (4 photos)
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04 Frequently Asked Questions
What gear accuracy grades can you achieve?
Standard hobbing reaches GB/T 10095 grade 6-7; gear grinding up to 4-5. AGMA / ISO / DIN standards supported.
Can you do gears with HRC58-62 flank hardness?
Yes — carburizing + low-temp tempering gives HRC58-62 case and HRC30-45 core, suitable for most heavy-duty uses.
Do you offer tooth profile modification?
Yes — tooth-end relief and crowning are supported, with profile analysis software recommending based on your use.
Is small-batch custom gear costly?
For batches under 100 pcs, unit cost is higher due to setup and hobber tooling — choose existing standard blanks to reduce cost.
Detailed Content
Gear Parts
Gears are core components of mechanical transmission for power and motion. We customize module, profile and accuracy per your drawing or sample.
Core Process Capabilities
- Internal ring gear shaping: Internal shaping plus outer bolt-hole PCD in one setup, achieving ring-to-end-face runout ≤0.02mm — ideal for planetary reducer rings and slewing bearing internals.
- Spur bevel gear shaping: Cone angle accuracy ±10′ after shaping, with tooth contact pattern ≥70% along tooth length, combined with end-face splined bore in one setup — no secondary clamping error.
- Lightening-hole spur gear: External hobbing + 4 lightening holes + internal splined bore in one setup, flank Ra0.8, with excellent balance — ideal for high-speed and automotive transmission gears.
- Dual-tooth composite gear: Internal teeth shaped plus end-face external teeth in one setup, with relative position between the two tooth forms guaranteed by the machine — perfect for dual-speed transmissions and differentials.
- Profile modification and honing: Tooth-end relief and crowning reduce mesh-in impact and tooth-width load deviation; honed to flank Ra0.4, reducing running noise by 3-5 dB.