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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.
V-BELT PULLEYS INSTRUCTION:
The material is cast iron GG25 GG20(HT200) and after machining all pulleys are being phosphated.
Each pulley is strictly dynamically balanced with high precision dynamical balancing,Each pully is used safely and reliably.
Standard pulley with single, duplex, triplex groove
V-belt pulleys confirm to GB/T 135701; BS3790;DIN2211;ISO4183,ISO254
Our company also can make OEM pulleys with different grooves accroding customer's drawings
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.
Product nameÂ
V-Taper Pulley and Bore Pulley
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
QCÂ :
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