Jiangyin Ke'an Transmission Machinery Co., Ltd.
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High-Precision Gears Design & Manufacturing

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Products
High-Precision Gears

Kean specializes in manufacturing high-precision gear solutions, engineered to meet the most demanding client requirements across diverse industries. We proudly serve sectors such as aerospace, rail transit, mining and metallurgy, construction vehicles, port machinery and ships, industrial gearboxes, and industrial automation.

  • Founded in 2002
  • Over 35,000 custom gear transmission parts produced annually
Gear Machining Range Gear Machining Range
  • Module: 0.5-20
  • Max. gear milling diameter: 1720mm
  • Max. spindle through hole diameter (gear milling): 320mm
  • Max. gear grinding diameter: 850mm
  • Max. spindle through hole diameter (gear grinding): 180mm
  • Precision: grade 4 (GB11365-89)
  • Gear ratio: 1:1 to 1:10
Material Material

40Cr, 42CrMo, 35CrMo, 20CrMnTi, 20CrNiMo, 20CrNi2MoA, 20Cr2Ni4A, 17CrNiMo6, 17CrNiMo6-4, 18CrNiMo7-6, etc.

Secondary Processing

Our advanced secondary processing capabilities include:

  • Grinding
  • Milling
  • Honing
  • Laser and EB Welding
  • Broaching
  • EDM Machining
Surface Treatment Surface Treatment

We offer a comprehensive range of surface treatments to enhance the performance and durability of our gears:

  • Heat Treatment: Carburizing, Induction Hardening, and Nitriding
  • Passivation
  • Magnetic Particle Inspection
  • Nital Etching
  • Plating: Chromium, Nickel, Armoloy®, Cadmium, Anodizing, Black Oxide, Magnaplate HMF®, Electroless Nickel, and Precious Metals
  • Titanium Nitride
  • Electropolishing
  • Tuftriding®
  • Electrolysis
Our Products
  • Bevel Gear
    Bevel Gear
    Gear type: straight tooth bevel gears, spiral tooth bevel gears
    Diameter: 20mm-850mm
    Module: M2-M30
  • Cylindrical Gear
    Cylindrical Gear
    Module: M1-M30
    Diameter range: 20mm-1200mm
    Precision: grade 4 (GB11365-89), DIN 4
  • Transmission Shaft
    Transmission Shaft
    Module: M0.5-M6
    Length range: ≤1600mm
    Precision: grade 4 (GB11365-89), DIN 4
  • Internal Gear
    Internal Gear
    Module: M1-M16
    Diameter range: 30mm-1000mm
    Precision: grade 5 (GB11365-89), DIN 5
  • Planetary Reducer
    Planetary Reducer
    A precision planetary reducer is a high-accuracy, high-efficiency reduction device, with its core transmission structure comprising planetary gears, a sun gear, and an internal ring gear.
  • Milling Head
    Milling Head
    Extension Milling Head
    90º Angle Milling Head
    Universal Milling Head
Products

We offer high-volume production of diverse, high-precision gears, always tailored to meet specific customer needs. Our unparalleled product quality, rapid response capabilities, and expert technical support empower clients to overcome even the most complex precision and gear challenges. Our integrated design, engineering, and manufacturing teams collaborate seamlessly to ensure optimal solutions are delivered, specifically optimized for manufacturability.

All gear products come with a 3-year warranty, and any quality issues not caused by gear design are eligible for free replacement. Our commitment to reliable quality is underpinned by certifications including GB/T19001-2016, ISO9001:2015, AS9100D, and Classification Society approvals.

  • GB/T19001-2016
  • ISO9001:2015
  • AS9100D
Industries we serve
We proudly serve sectors such as aerospace, rail transit, mining and metallurgy, construction vehicles, port machinery and ships, industrial gearboxes, and industrial automation.
Aerospace & Aviation
Custom Gear Transmission Parts for Aerospace & Aviation
Rail
Custom Gear Transmission Parts for Rail
Mining
Custom Gear Transmission Parts for Mining
Construction Equipment
Custom Gear Transmission Parts for Construction Equipment
Marine
Custom Gear Transmission Parts for Marine
Gearbox
Custom Gear Transmission Parts for Gearbox
Our Clients
  • Our Amazing Clients
  • Our Amazing Clients
  • Our Amazing Clients
  • Our Amazing Clients
  • Our Amazing Clients
  • Our Amazing Clients
  • Our Amazing Clients
Jiangyin Ke'an Transmission Machinery Co., Ltd. Precision Gear Design & Manufacturing
ka@keancn.com
+86-510-86013998
+86-18906164561
Products
  • Bevel Gear
  • Cylindrical Gear
  • Transmission Shaft
  • Internal Gear
  • Planetary Reducer
  • Milling Head
Industries
  • Aerospace & Aviation
  • Rail
  • Mining
  • Construction Equipment
  • Marine
  • Industrial Gearbox
  • Industrial Automation
Quick Links
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