Product manual on Industrial V-Belts as per IS 2494: Part ...MCM)IS2494.pdf · Our Ref.:...

Product manual on Industrial V-Belts as per IS 2494: Part 1: 1994 Prepared by: MDCH-2 Approved by:

1

DRAFT PRODUCT CERTIFICATION MANUAL FOR COMMENTS

Our Ref.: NRO/CHBO(MCM) 13 Jan 2014

Please find enclosed the following draft certification manual:

V-Belts, Endless V-Belts For Industrial Purposes as per IS 2494 (Part 1) :

1994

Kindly examine the draft product certification manual and forward your comments on the

draft manuals.

Last date for comments: 28 Jan 2014.

Comments, if any, may please be made in the format as given below and mailed to

CHBO(MCD) at the following email id: [email protected].

Sl.

No.

Name

of RO /

BO

Clause/

Sub-

clause

Paragraph /

Figure /

Table

Type of

comment

(General /

Technical /

Editorial)

Comments Proposed Change

Note: Separate sheets may be attached in case comments are lengthy and cannot be

incorporated in the table.


2

Product Manual

On

V-Belts, Endless V-Belts For Industrial

Purposes

as per IS 2494 (Part 1): 1994


3

Amendment Sheet


4

Foreword

This product manual contains the description, manufacturing, and testing of

V-Belts, Endless V-Belts For Industrial purposes as per IS 2494 (Part 1):

1994. Guidelines for Grant of BIS licence for an applicant is also described

in this manual. Grouping guidelines, sample size for testing, information

about laboratories where the product can be got tested for the purpose of

Grant of Licence etc. are described in the manual for the easiness of a new

applicants as well as existing licensees.


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Table of Contents

Sr. No. Contents Page Nos.

1. Section I 5-10

2. Section II 11-12

3. Section III 13-15

4. Section IV 16-22

5. Section V 23-25


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Section I: Product Description


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Description of Product

Vee belts (also known as V-belt or wedge rope) are the basic belt for power transmission now a

days in industries. They provide the best combination of traction, speed of movement, load of the

bearings, and long service life. They are generally endless, and their general cross-section shape

is trapezoidal (hence the name "V"). The "V" shape of the belt tracks in a mating groove in the

pulley (or sheave), with the result that the belt cannot slip off. The belt also tends to wedge into

the groove as the load increases—the greater the load, the greater the wedging action—improving

torque transmission and making the V-belt an effective solution, needing less width and tension

than flat belts.


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Latest Indian Standard Number with Product title and

number of Amendments

IS 2494 (Part 1): 1994

V-BELTS-ENDLESS V-BELTS FOR INDUSTRIALPURPOSES

No. of Amendments: 01

List of referred Indian Standards for raw materials/

components and test methods

IS 7923:1985 "Glossary of terms and definitions relating to drives using V-belts and

grooved pulleys" is a referred standard for defining various terminologies related to the

product and the raw materials.


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Check –list for submission of an application for grant of licence

a) Checklist for application to be submitted by applicants to BIS while applying for BIS licence


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b) List of documents to be attached with application.


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Section II: Raw materials/Components


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Following are the major raw materials used for the manufacturing

of V-belts :

1. Natural raw rubber

2. Zinc oxide

3. Steric acid

4. Carbon

5. Anti oxidant

6. Sulphur

7. Tejin cord

8. Petriz

9. Elasto oil

10.Cotton fabric


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Section III: Manufacturing Process

and In-Process Quality Controls


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Description of Manufacturing process(es)

A typical flow chart indicating manufacturing process is depicted below:

Weighing

Mixing

curing

Extrusion

Rubber

cord

Size

cutting

Mixing

mixing

Labeling

Product

curing

Size cutting

Mixing

Curing

Cotton Fabric

addition

Cutting of

clender m/c

product

Mixing

Mill

Calender

machine

Making

machine

Jacketing

machine


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Infrastructure for Production

A Unit may need the following machineries in manufacturing the Endless

V- belts:

1. Mixing Mill

2. Boiler

3. Generator

4. Hydraulic press

5. Compressor machine

6. Lathe machine

7. Drill machine

8. Extruder machine

9. Jacketing machine

10. Calender machine

11. Vulcanizing chamber

12. Cutting table

13. Frame machine


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Section IV: Certification Criteria


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Identification of Critical Requirements of the Indian Standard

(To be identified by CMD)


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Scheme of Testing and Inspection:


20


21


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Marking Fee Rate:

The following rates of marking fee is applicable for a licencee:

i) Rate of Marking Fee:

Unit-100 Pieces

Rs 3.5 for all units

ii) Minimum marking fee Rs. 29000 (for Small Scale Industries) / Rs 34000/-(for Large

Scale Industries) for one operative year payable in advance which will be carried to next

renewals.

iii) Actual marking fee for the first nine months of the operative period calculated on unit

rate basis on the production marked or the minimum marking fee whichever is higher

shall be payable by the licencee.

Grouping Guideline:-

V-belts may be grouped as per their cross sections which are Z, A, B, C, D & E as per this

standard.


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Guideline for writing Scope of Licence:-

Scope of licence may be written as "Endless V-Belts for Industrial purposes, General

purpose; Belt Cross Section A/B/C etc."

Guidelines for inclusion of new varieties :-

For getting a new variety included in the existing licence, a licensee is required to get the sample

(as per sample size) of each variety tested from BIS recognized laboratories.

Sample size: -

02 pieces of full pitch length for each type of belt cross section, viz. A, B and C

Manner of sealing the sample:-

After packing the sample in polythene cover, sample should be preferably packed in

jute/cloth cover.

Whether remanants of the sample are returnable/non-returnable: Non

returnable

Procedure to be followed for destroying the product that does not meet

the quality parameters during regular production :

To be cut in to pieces


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Section V: Inspection and Testing


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Packing Material Requirements (to be available in factory at all times)

for packing/dispatch of samples :-

Polythene cover, jute/ cloth, needle & thread (for sewing), sealing wax etc.

List of required test equipment/facilities with requirement and

frequency of calibration:

(To be provided by Central Lab, Sahibabad)

Status of test facilities in BIS labs and OSLs with testing charges and

approximate time required for testing (As on 19 11 2013):-

Lab name Testing charges Approx time required for

testing

Central Lab,

Sahibabad (BIS Lab)

Rs 750/- 15 days

Shriram Institute For

Industrial Research

19, University Road,

P.B.No. 2122,

Delhi-110007

Delhi

Contact : Director

Tel :

27667267,27667860

27667676

Rs.15000/- 15 days


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Whether grant of licence will be based on :

Factory testing basis X

Independent testing basis √

Mixed(Factory testing basis plus Independent testing basis ) X

Details of tests to be carried out in the factory in case of :

� Applicant samples/verification sample-

Material and workmanship ( as per clause 4.1) , cross section dimensions (as per clause 5

& 7.1.1), Belt pitch length (as per clause 7.1).

� Survelliance/Market samples-

Material and workmanship ( as per clause 4.1) , cross section dimensions (as per clause 5

& 7.1.1), Belt pitch length (as per clause 7.1)

� Raw material samples to be got tested, if any- Not applicable.

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