HIC,is manufacturers of industrial v-belts, cog vee belt,wedge belts,harvester combine belt,double v belts exporters from India.

LENGTH CODING SYSTEM: When the code number 50 is shown on the cello-tape affixed on each Poly V-Belt, this indicates that the actual length coincides with the nominal length printed on the belt. Each deviation of 2.5 mm from the nominal length is represented by one unit. For instance, a V-belt with size 100" coded 50 is exactly 100 inches inside length. If the code is 49, then it is 99.9" and if the code is 51, then it is 100.1" inside length.

MATCHED SETS: The question of matched sets arises in case of multi V-belt drive as the length of V-belt should be matched in order to obtain even distribution of load. A 'Matched Set' is simply a set of such belts, the length of which are within the specified limits, so that these can be used together.

The table as shown depicts the permissible length deviations in consecutive grading numbers marked near the size code which represents the exact length measured under specified operating tensions.

Belt Drive V Section Belt Pitch Length Exceeds Inside Length By (mm) V Belt Outside Diameter Exceeds Pitch Diameter By (mm)   Nominal Inside Length (mm) of Machine Belt Range (inches) of V Belt No. of consecutive grading number (s) to be used to make a matched set
A

B

C

D

E

SPZ

SPA

SPB

SPC  
36

43

56

79

92  
6.6

8.4

11.4

16.2

19.3

4.0

6.0

7.0

9.6
  457 to 1676


1702 to 2286


2311 to 3048


3073 to 4572


4597 to 9093


9119 and above
18-66


67-90


91-120


121-180


181-358


359 and above
1


2


3


4


5


6

Power Transmission V-Belts Product Specification

Normal
Horse Power
H.P.
Speed of Faster Shaft i.e. Motor Speed
RPM
V-Belt
Section
Permissible Min. Belt
Pulley Pitch Diameter
mm   
              inch
Recommended Min
Belt Pulley Pitch
Diameter

mm                inch
720 and below 900 1200 1800
½ to 11/2

2 to 3

5

10

15

20

25 to 30

40

50

60

75
A

A or B

A or B

A or B

C

C

C

D

D

D

D
A

A or B

A or B

A or B

B or C

C

C

C or D

C or D

C or D

C or D
A

A or B

A or B

A or B

B or C

C

C

C or D

C or D

C or D

C or D
A

A or B

A or B

A or B

B

B or C

C

C

C or D

C or D

C or D
A

B

C

D

E

SPZ

SPA

SPB

SPC
75

125

200

315

500

-

-

-

-
3

5

8

12.6

20

-

-

-

-
95

145

225

350

550

63

90

160

224
3.8

5.8

9

14

22

2.5

3.6

6.4

9.0

1 KW = H.P. X 0.746

Please note that with smaller pulley diameter than those recommended, the life of belt is reduced considerable and also the transmitting power decreases. It is necessary to ensure that at least belts run on pulleys that are not below the permissible minimum diameter for each section.

Table 3 Standard V Belt Pulley DIMENSIONS

V Belt Grove Cross-Section Pulley Pitch Diameter
dp
(mm)
Groove Angle A Degree + 0.50 Minimum Top width of groove g(mm) Minimum Groove depth below outside diameter hg (mm) Centre to Centre of grooves Sg (mm) Edge of Pulley of First Groove Centre (mm)
SPZ



A

SPA

B

SPB

C

SPC

D



E
Upto 80

Over 80

Upto 118

Over 118

Upto 190

Over 190

Upto 315

Over 315

Upto 475

Over 475

Upto 630

Over 630
34

38

34

38

34

38

36

38

36

38

36

38
9.7

9.9

13.0

13.3

16.6

16.9

22.7

22.9

32.2

32.6

38.3

38.6


11.0



13.8



17.5

23.8

23.8





28.0




33.0


12 +0.3



15 + 0.3



19 + 0.4

25.5 + 0.4

25.5 + 0.5





37.0 + 0.6




44.5 + 0.7


8.0 + 1.0



10.0 + 2.0

-1.0

12.5 + 2.0

-1.0

-1.0

-1.0


24.0 + .0

-1.0

29 + 4.0

-1.0

When the Pulleys are to be used for V-belt sections, A,B or C only, dimension hg may be reduced by 20%

Universal urges to use standard premium quality Vee-Belt Pulley either conventional type or new generation quick-fit taper lock Pulley bush type manufactured to drag better mileage from V-Belts drive. Auto Fan Belts, Variable Speed Belts also manufactured.

Vee Belt Information To Be Supplied With Enquiry or Order

(I) Section (II) Size in inches or mm (III) Quantity in nos.

Belt Drive Rubber Design Formulae

 

Narrow and Cogged V Belts Information To Be Supplied With Enquiry or Order

1. Section , Top width x Thickness
2. Size , Length inches I/C or Pitch Length - MM
3. Quantity , nos.

Disclaimer: Information's, written and verbal are provided by HIC, relative to its products which it determines to be reliable & no liabilities of whatsoever nature in regards to its uses. The purchaser of UNIVERSAL brand industrial products should determine for itself the suitability of such products.

© 2003 HIC International Co Inc. All Rights Reserved

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