Hansheng Automation (Dongguan) Co., Ltd. is one of the most experienced manufacturers and suppliers of custom metal spur gear in China. If you're going to wholesale bulk cost-effective custom metal spur gear made in China, welcome to get pricelist and quotation from our factory. Also, customized service and OEM&ODM service are available.
Our Custom Metal Super Gear achieves ISO 5 accuracy (GB 5/DIN 5 equivalent) for precision transmission.engineered for non-standard applications that demand exceptional performance. Leveraging Japanese Fuji KPS30 gear shaving machines and Ningjiang YK3610IV CNC hobbing machines, we ensure inner/outer diameter and thickness tolerances within ±0.01mm-ideal for high-precision mechanical systems in automation, aerospace, and medical equipment.
Highlight Features
ISO 5 level precision
Total accumulated deviation of tooth pitch Fp≤0.012mm, total deviation of tooth profile Fa≤0.006mm, reaching ISO 5/GB 5/DIN 5 level standard.
±0.01mm Tolerance control
ID / OD / Thickness full size tolerance ≤ ±0.01mm, using the "scraping finishing + precision turning + CMM compensation" process chain.
Non-standard customization
Module M1~M8 (support M0.3 micro-precision gears), unlimited number of teeth, pressure angle 20°±1° adjustable.
Special tooth shapes (trimmed teeth/drum teeth), shaft holes, keyways and other non-standard structures can be customized according to the drawings provided by you.
Diversified materials and processes
Material matrix: S45C, 304 stainless steel, aluminum alloy, copper alloy, nylon 66, etc. (support for customer-specified materials).
Heat treatment: tempering, high-frequency quenching, nitriding (hard-scraping process adapted to the HRC50 + material).
Technical Parameters
| Parameter Category | Standard Range | Customization Capability (Equipment & Process Support) |
|---|---|---|
| Module | M1~M8 | Japanese KPS30 gear shaving machine (M1~M6) / Ningjiang YK3610IV (M1~M8), minimum tooth pitch error ±0.008mm (for M2 module) |
| Teeth | Unlimited (General 12~200 teeth for reference) | YK3610IV CNC hobbing machine supports small number of teeth (≥8 teeth) with non-integer tooth ratio, tooth profile error ≤0.005mm (detected by CMM) |
| Pressure Angle | 20°±1° | KPS30 servo system controls angle deviation ≤5′, customizable to 14.5°/15°/25°, contact spot ≥85% |
| Precision Grade | ISO 5/GB 5/DIN 5 | Total tooth profile deviation Fa ≤0.006mm, total helix deviation Fβ ≤0.008mm, total cumulative pitch deviation Fp ≤0.012mm (for 100mm tooth width) |
| Dimensional Tolerance | Inner diameter/Outer diameter/ Thickness ≤±0.01mm | Precision lathe secondary processing with ZEISS inspection compensation: Inner hole H6 tolerance (±0.008mm when ≤Φ100mm) Outer diameter roundness ≤0.005mm |
| Material | S45C, stainless steel, aluminum, copper, etc. | High-strength materials: 20CrMnTi carburized steel, 42CrMo quenched and tempered steel (grain size ≥Grade 6), RoHS/REACH certification supported |
| Heat Treatment | Quenching & tempering, high frequency, nitriding | Tooth surface hardness after nitriding ≥HV900, deformation ≤0.008mm, hard skiving process corrects HRC50 + material deformation |
| Tooth Surface Roughness | Ra 0.4~0.8μm | Mirror finish optional with Ra 0.2μm (KPS30 gear shaving machine fine finishing + super precision grinding) |
FAQ
Q: How to ensure ±0.01mm tolerance without grinding machine?
A: Adopting the process of "KPS30 scraping machine to fine-tune the tooth surface + precision lathe to control the size + ZEISS coordinate real-time compensation", through the scraping depth of 0.05mm hard scraping technology, instead of the traditional grinding process, the measured tolerance is stabilized within ±0.01mm.
Q: What is the minimum order quantity? How long is the sampling period?
A: Starting from 5 pieces, standard sampling period is 1-2 weeks, and can be compressed to 1 week for expediting (additional communication on process priority is required, except for hard material processing).
Q: How do I verify that the gears meet ISO 5?
A: Each batch comes with: ① ZEISS CMM full profile 32-point inspection report; ② Kisssoft transmission error curve (≤0.015mm peak-to-valley value); ③ SGS and other third-party on-site witnessing tests are acceptable.
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