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So im working on a Hyundai 4cyl cylinder head today, tore it down and upon inspection i noticed the cam chain has the some markings on it, it says DID 05S JAPAN, i was like WTF i knew they messed with some powersports timing chains but i just didn't think they were OEM for Hyundai, is this a real DID chain? lmk if you know anything about these.
 

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Speciality
Chain Series
Roller Chains for
Power Transmission
Small Pitch Chain
The smallest chain complying to ANSI is DID25 of 6.35 mm pitch.
However, in response to the demands for smaller chains in
recent years for high technology machinery such as office
equipment, medical machines and industrial robots, we provide
DID15 of 4.7625 mm (3/16 inch) pitch and also DID15H1 as a
high-power version of DID15. These high precision chains are
manufactured under severe quality control especially required
for small sizes, taking wear resistance also into account.
Selection of chain
Refer to the "Low-speed selection" (P.121). However, the chain
operation speed can be set considerably high depending on the
type of lubrication as shown in the table below.
Connecting links and offset links
R connecting links are used for small pitch chains. However,
since their strength is lower than that of the base chain, and
since the clip is likely to come off in high speed operation, the
use of connecting links is not recommended. Use a loop chain
without attaching connecting links.
Offset links are available for chains other than DID15 and
DID15H1, but their use is not recommended for the same reason
as stated for the R Connecting links.
DID
15: A high precision
mini-pitch bushing chain
that is smaller than a
compact drive chain for
general applications,
DID25
DID
25: Smallest bushing
chain among ANSI
standard chains using
curl bushings.
DID
35: A ANSI standard
bushing chain suitable
for small precision
machines that require
high strength.
Approx.
weight
(k
g
/m)
Dimensions
Note: The values of max. allowable tension are not applied to connecting links.
Chain No.
DID 15
DID 15H
1
DID 25
DID 25H
DID 25T
DID 35
DID 35T
4.7625
4.7625
6.35
6.35
6.35
9.525
9.525
2.40
3.18
3.18
3.18
3.18
4.78
4.78
2.48
2.48
3.30
3.30
3.30
5.08
5.08
1.62
1.62
2.31
2.31
2.31
3.59
3.59
6.25
7.30
7.80
9.00
8.00
12.00
12.00
6.90
──
8.50
9.45
8.50
13.00
13.00
0.60
0.72
0.72
1.00
0.72
1.25
1.25
0.60
0.72
0.72
1.00
0.72
1.25
1.25
4.30
4.30
5.90
5.90
5.90
9.00
9.00
1.96
3.14
4.41
5.88
4.41
11.20
11.20
270
320
450
600
450
1,150
1,150
0.49
0.58
0.73
1.07
0.73
2.15
2.15
50
60
75
110
75
220
220
0.060
0.789
0.109
0.122
0.109
0.265
0.265
0.089
0.103
0.134
0.163
0.134
0.332
0.332
Width
W
Dia.
D
Dia. Length Thickness
d
Width
H
Pitch
PEFTt
Pin
Bushing Plate
Baring area
(cm
2

Avg. tensile
strength
kN
k
g
f
Max. allowable
load
kN
k
g
f
Unit (mm)
Roller Chains for Power Transmission
Specialty Chain Series
DID 15
DID 15H
1
DID 25
DID 25H
DID 25T
DID 35
DID 35T
Type
A
Oil feeder, brush, drip
Type
B
Oil bath, disk
Type
C
Forced pump feed
200
m/min or less
150

110

1200
m/min or less
1000

1
850

Over 1200m/min



Operating speed and type of lubrication
R connecting link

THIS IS JUST OFF THE TOP OF MY HEAD :D:D:D:D:D
 
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