Beware of Counterfeits

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Counterfeit bush timing chain as replica of the chains No.514.1006040-20; 514.1006040-30 and 406.1006040-30

13.12.2016

In retail of CIS countries are available counterfeit timing chains of DITTON Driving Chain Factory, as well as a part of timing chain repair kit. By copying the external features of the goods, there is even used the trademark - «ДЦ» (spelling “DC”) without any significant changes, what is an obvious violation of rights and of a law.

At first glance there are following differences between the original and counterfeit timing chains:

1. Connecting link

ORIGINAL COPY

Riveting: pins with conical head

Colour of plates: yellow-straw

Date of chain production: the numbers disclose the month and the year of production

Riveting: pins with the flat head and cuts on two parallel sides

Colour of plates: dark-blue

Date of chain production: none

2. Quality of pin link plates

ORIGINAL COPY
 

 

Riveting: linear and symmetrical 

Blueing: white-blue

Trademark "ДЦ" (spelling - "DC"): clear image

Riveting: pins have uneven ends, and even scraps in some places. Judging by width of the chain, riveting is done unevenly.

Blueing: dark-blue

Trademark "ДЦ" (spelling - "DC"): in some places unclear or even incomplete emboss of the trademark, in other too deep imprint 

3. Bushes
ORIGINAL COPY
 

There are obvious traces and dark spots of corrosion on the surfaces of bushes. Due to inappropriate welding bushes have fault of the open instead of close weld.

The counterfeit bush timing chain is not suitable for the car engine. It`s use as a timing chain may lead to chain break directly in the car engine causing the damage of the motor and valves.

The testing results of the counterfeit timing chain showed that the chain does not comply with the requirements for the automotive 9,525 mm pitch duplex bush timing chain due to breaking load, geometrical features and the steel hardening quality of chain parts.

Distinctive features
Chain requirements of JSC DITTON Driving Factory
514.1006040-20
514.1006040-30
406.1006040-30
 
Testing results
of the counterfeit products
Breaking load, N min
19 000
16 000, 15 200 ( because of inner plates)
Inner link width, max mm
8,63
8,55 – 8,70
Inner plate thickness, mm
1,40
1,45 – 1,50
Outer plate thikness, mm
1,20
1,25-1,3
Bush length, max mm
8,43 – 8, 58
8,70-8,72
Bush diameter, max mm
6,33 – 6,35
6,28-6,33
Chain width (between ends of pins), max mm
23,60
23,73-29,79
Yield strength between the plate and the bush, min daN
59
56, 48, 48, 54, 36, 24
Inner plate hardness, HRC
45-52
22/24-49
Outer plate hardness, HRC
45-52
38-51
Intermediate plate hardness, HRC
45-52
53-56 
Bush hardness, HV5
 644-841
 362 - 648
Carbonitrided layer of bushes, mm
0,10 – 0,20
0,05-0,15 
ductile fracture
Carbonitrided layer of pins, mm
0,25 – 0,40
0,15-0,20 
brittle fracture
Riveting (pins with the flat head and cuts on two parallel sides of the end), min mm
4,55
4,44 – 4,56