V-Belts
" DARWIN "
Introduction
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Darwin V-belts are renowned for balanced combination of Strength,
Modulus, Energy of rupture, Adhesion, Thermal and Fatigue life
properties demanded by a wide range of applications. This has
become possible through the selection of high-grade load carrying
cords and the combination of Premier quality rubber Compounds
needed for optimum performance in dusty and gritty conditions,
apart from imparting excellent oil, heat and wear resistance along
with anti-static properties.
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Construction
Features of DARWIN CODE FREE V-Belts
1.
Cover
Fabric: This is manufactured from a strong cotton fabric
impregnated with specially compounded Neoprene rubber.
This cover resists external influence and secures uniform
friction against pulley grooves without losing its flexibility.
2.
Cushion
Rubber: This maintains good adhesion of tension member and
holds it in correct position.
3.
Tension
Member: This is made of specially treated polyester cords,
which have high tensile strength, low elongation and excellent
resistance to bending fatigue.
4.
Compression Rubber: For long life,
specially compounded high hold modulus compression rubber is used to
resist extreme heat and compression.
RANGE
OF V-BELTS
|
Section
|
Length
Range (mm)
|
| A |
406
to 5690 |
| B |
457
to 21590 |
| C |
914
to 21590 |
| D |
1473
to 21590 |
| E |
4115
to 21590 |
| BB |
1778
to 5500 |
| SPZ |
600
to 4000 |
| SPA |
690
to 4000 |
| SPB |
1320
to 21500 |
| SPC |
1900
to 21500 |
Harvester
Combine Belts:
45 X 20
50 X 22
68 X 24
HB
HSPC
H5V |
1900 to 4000
1825 to 4000
1900 to 3000
1900 to 4500
2000 to 6000
All prominent sizes |
| Narow
Belts Z, 9.5, 12.5, 3V, 5V, 8V, FHP |
All prominent sizes |
| Cable
Cord Flat Belt |
2800
to 5000 |
H
denotes - Banded Belt; Available in multiples to max 5. V-BELTS
SECTION DETAILS
Classical Section V-Belts
|
Section
|
Z
|
A
|
B
|
20
|
C
|
25
|
D
|
E
|
|
Top Width
(mm)
|
10
|
13
|
17
|
20
|
22
|
25
|
32
|
38 |
|
Thickness
(mm)
|
6
|
8
|
11
|
12.5
|
14
|
16
|
19
|
23
|
|
Angle
(°)
|
40
|
40
|
40
|
40
|
40
|
40
|
40
|
40
|
|
Li to Lp
(mm)
|
+22
|
+36
|
+43
|
+48
|
+56
|
+61
|
+79
|
+92
|
|
Li to La
(mm)
|
+38
|
+50
|
+69
|
+79
|
+88
|
+100
|
+199
|
+145
|
|
Lp to Li
(mm)
|
-22
|
-36
|
-43
|
-48
|
-56
|
-61
|
-79
|
-92
|
|
La to Li
(mm)
|
-38
|
-50
|
-69
|
-79
|
-88
|
-100
|
-119
|
-145
|
|
La to Lp
(mm)
|
-16
|
-14
|
-26
|
-31
|
-32
|
-39
|
-40
|
-53
|
Wedge Section V-Belt
|
Section
|
SPZ
|
SPA
|
SPB
|
19
|
SPC
|
|
Top Width
(mm)
|
10
|
13
|
17
|
19
|
22
|
|
Thickness
(mm)
|
8
|
10
|
14
|
15
|
18
|
|
Angle
(°)
|
40
|
40
|
40
|
40
|
40
|
|
Li to Lp
(mm)
|
+37
|
+45
|
+60
|
+69
|
+83
|
|
Li to La
(mm)
|
+50
|
+63
|
+88
|
+94
|
+113
|
|
Lp to Li
(mm)
|
-37
|
-45
|
-60
|
-69
|
-82
|
|
La to Li
(mm)
|
-50
|
-63
|
-88
|
-94
|
-113
|
|
La to Lp
(mm)
|
-13
|
-18
|
-28
|
-25
|
-30
|
High Capacity Narrow V-Belts
|
Section
|
3V
|
5V
|
8V
|
|
Top Width
(mm)
|
9.7
|
15.8
|
25.4
|
|
Thickness
(mm)
|
8.0
|
13.5
|
23.0
|
|
Angle
(°)
|
40
|
40
|
40
|
|
Li to Lp
(mm)
|
+37
|
+60
|
+92
|
|
Li to La
(mm)
|
+50
|
+85
|
+145
|
|
Lp to Li
(mm)
|
-37
|
-60
|
-92
|
|
La to Li
(mm)
|
-50
|
-85
|
-145
|
|
La to Lp
(mm)
|
-13
|
-25
|
-53
|
Hexagonal V-Belts
|
Section
|
AA
|
BB
|
CC
|
|
Top Width
(mm)
|
13
|
17
|
22
|
|
Thickness
(mm)
|
10
|
14
|
17
|
|
Angle
(°)
|
40
|
40
|
40
|
Harvester (Vari-Speed) Belts
|
Section
|
25
|
30
|
32
|
36
|
38
|
40
|
45
|
50
|
55
|
60
|
68
|
|
Top
Width (mm)
|
25
|
30
|
32
|
36
|
38
|
40
|
45
|
50
|
55
|
60
|
68
|
|
Thickness
(mm)
|
13
|
12
|
16
|
14
|
18
|
20
|
20
|
20
|
22
|
25
|
24
|
|
Angle
(°)
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
|
Li
to Lp (mm)
|
+53
|
+52
|
+61
|
+56
|
+77
|
+84
|
+84
|
+88
|
+92
|
+102
|
+98
|
|
Li
to La (mm)
|
+82
|
+75
|
+94
|
+88
|
+113
|
+126
|
+126
|
+132
|
+138
|
+157
|
+151
|
|
Lp
to Li (mm)
|
-53
|
-52
|
-61
|
-56
|
-77
|
-84
|
-84
|
-88
|
-92
|
-102
|
-98
|
|
La
to Li (mm)
|
-82
|
-75
|
-94
|
-88
|
-113
|
-126
|
-126
|
-132
|
-138
|
-157
|
-151
|
|
La
to Lp (mm)
|
-29
|
-23
|
-33
|
-32
|
-36
|
-42
|
-42
|
-44
|
-46
|
-55
|
-53
|
Li - Inside Lenght, La - Outside Length, Lp/Lw - Pitch Length
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