|
◆ characteristics
Narrow V-belt possesses the characteristics of large transmission
power, long lifetime and small conveying space. It is the updated
product of common V-belt. When using in joint group, able to develop
the capability of every V-belt; efficiently eliminate the libration
of individual belt; good integration; all individual belt has even
stress and operates stably, high loadable capability, longer lifetime,
suitable in transmission of large power.
◆
product series and models
Narrow V-belt includes V
series and SP series, V series also can be classified into single-base
narrow V belt and group narrow V-belt.
series |
model
|
V series |
single-base |
3V（9N） |
5V（15N） |
8V（25N） |
|
|
joint group |
3V（9J） |
5V（15J） |
8V（25J） |
|
SP series |
single-base |
SPZ |
SPA |
SPB |
SPC |
◆ basic
size of single-base narrow V-belt section
型号
项目 |
APZ |
SPA |
SPB |
SPC |
3V |
5V |
8V |
b |
10.0 |
13.0 |
17.0 |
22.0 |
9.5 |
15.5 |
25.5 |
h |
8.0 |
10.0 |
14.0 |
18.0 |
8.0 |
13.5 |
23 |
a |
40° |
◆
basic size of joint group narrow V-belt section
model |
b |
e |
h |
a |
3V |
9.5 |
10.3 |
10 |
40° |
5V |
15.5 |
17.5 |
16 |
8V |
25.5 |
28.6 |
26.5 |
◆
conversion relationship of all models of narrow V-belt girth
| model |
mathematics difference of outside and inner girth N |
mathematics difference of efficient girth and inner girth
M |
3V（single-base）
3V（joint group）
5V（single-base）
5V（joint group）
8V（single-base）
8V（joint group）
SPZ
ZPA
SPB
SPC
|
outside girth=inside girth +50
outside girth=inner girth+63
outside girth=inner girth+85
outside girth=inner girth+100
outside girth=inner girth+144
outside girth=inner girth+167
outside girth=inner girth+50
outside girth=inner girth+63
outside girth=inner girth+88
outside girth=inner girth+113
|
efficient girth=inner girth+36
efficient girth=inner girth+36
efficient girth=inner girth+68
efficient girth=inner girth+68
efficient girth=inner girth+125
efficient girth=inner girth+125
efficient girth=inner girth+37
efficient girth=inner girth+45
efficient girth=inner girth+62
efficient girth=inner girth+87 |
| Remarks：account girth（middle girth）=inner girth+1/2N |
◆ V
series narrow V-belt standard efficient length and windage &
joint group allowable windage
efficient length |
limit windage |
group allowable windage |
model |
3V |
5V |
8V |
1080 1145 1205 1270 |
1270 |
|
±8 |
4 |
1345 |
1345 |
|
±10 |
4 |
1420 1525 1600 1700
1800 1900 2030 |
1420 1525 1600 1700
1800 1900 2030 |
|
±10 |
6 |
2160 2290 2410 2540 |
2160 2290 2410 2540 |
2540 |
±13 |
6 |
2690 |
2690 |
2690 |
±15 |
6 |
2840 3000 3180
3350 3550 |
2840 3000 3180
3350 3550 |
2840 3000 3180
3350 3550 |
±15 |
10 |
|
|
3810 4060 6320 4570
4830 5080 5380 5690
6000 |
3810 4060 4320
4570 4830 5080
5380 5690 6000 |
±20 |
10 |
6350 6730 7100 7620 |
6350 6730 7100 7620 |
±20 |
16 |
8000 8500 9000 |
8000 8500 9000
9500 10160 |
±25 |
16 |
|
10800 11430
12060 12700 |
±30
±30 |
16
24 |
| Remarks: Able to manufacture products with special
specification according to customers' requirements. |
◆SP
series narrrow V-belt benchmark length and windage & group allowable
windage
basic size |
belt type |
|
|
|
limit windage |
joint group allowable |
SPZ |
SPA |
SPB |
SPC |
|
|
1120 |
+ |
+ |
|
|
±13 |
2 |
1250
1400 1600 |
+
+ |
+
+ |
+
+ |
|
±13
±16 |
2
2 |
1800 2000
2240 2500 |
+
+ |
+
+ |
+
+ |
+
+ |
±20
±25 |
2
4 |
2800 3150
3550 4000 |
+
+ |
+
+ |
+
+ |
+
+ |
±32
±40 |
4
6 |
4500
5000 |
▲ |
+ |
+
+ |
+
+ |
±50
±50 |
6
6 |
5600 6300
7100 8000 |
|
|
+
+ |
+
+ |
±63
±80 |
10
10 |
9000 10000
11200 12500 |
|
|
▲ |
+
▲ |
±100
±125 |
16
16 |
| Remarks: “+”is production specifications; “▲”is
negotiable production specifications. Able to manufacture products
with special specification according to customers' requirements. |
◆physical
machinery capabilities of narrow V-belt & joint group narrow
V-belt（GB12730）
items
guideline
section type |
pull intensity（kN/m）≥ |
elongating rate of reference
power（%）≤ |
reference power（kN） |
|
|
cord core |
cloth |
|
SPZ 3V |
2.5 |
8 |
14 |
1.96 |
SPA |
3.0 |
|
|
2.35 |
SPB 5V |
5.4 |
|
|
4.31 |
SPC |
9.8 |
|
|
7.85 |
8V |
12.7 |
|
|
9.81 |
|
