• Model NO.: 12C-20
  • Application: Motor, Motorcycle, Machinery, Agricultural Machinery, Car
  • Manufacturing Method: Rolling Gear
  • Material: Carbon Steel
  • Teeth Quantity: 20
  • Trademark: DONGHUA
  • Specification: OEM ISO DIN ANSI JIS KANA GB
  • HS Code: 84839000
  • Standard Or Nonstandard: Standard
  • Hardness: Hardened Tooth Surface
  • Toothed Portion Shape: Spur Gear
  • Type: Circular Gear
  • Surface Treatment: Black
  • Transport Package: Export Package
  • Origin: China
Hanzhou Donghua Chain Group is the most professional manufacturer of power transmission in China, manufacturing roller chains, industry sprockets, motorcycle sprockets, casting sprockets, different type of couplings, pulleys, taper bushes, locking devices, gears, shafts, CNC precision parts and so on. We have passed ISO9001, ISO14001, TS16949 such quality and enviroment certification.

Hangzhou Donghua Chain Group Co., Ltd., one of the largest chain manufacturers in China, has five subsidiaries including Hangzhou Ziqiang Chain Drive Co., Ltd. Hangzhou Dunpai Chain Co., Ltd. And Hangzhou Donghua Power Transmission IMP. & EXP. Co., Ltd. Etc. Hangzhou Donghua Chain Group Co., Ltd. Was founded in November 1991. The company is specialized in producing all kinds of standard chains and special chains, e. G. A or B series chains, automobile chains, stainless steel chains, combine harvester chains, heavy-duty cranked link transmission chains, stereo garage chains and maintenance-free chains etc.



DIN Standard Black Surface Treatment Sprocket With Spline 12C-20
Surface treatment: Black
C45 steel
Teeth Harden
Sprocket is with Spline
Hub: Both sides hubs
We can offer special sprockets according your drawings.
Product name  DIN Standard Black Surface Treatment Sprocket With Spline 12C-20
Materials Available 1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment Annealing, natural anodization, heat treatment,  polishing, nickel plating, chrome plating, znic plating,yellow passivation, gold passivation,  satin, Black surface painted etc.
Products Available sprockt chains, pulley, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels gear rack) bearing, bearing seat,  bushing, coupling, lock assembly etc.
Processing Method CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC : Technicians self-check in production,final-check before package by  professional Quality inspector
Size Drawings
Package Wooden Case/Container and pallet, or as per customized specifications
Certificate ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Advantage Quality first Service superior , Advanced equipment,Experienced workers,Perfect testing equipment
Lead Time 15-25days samples. 30-45days offcial order

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