Bsi bs au 214 3 1988 (2000) iso 7647 1986

BRITISH STANDARD AUTOMOBILE SERIES BS AU 214 3 1988 ISO 7647 1986 Gearbox flanges — Part 3 Specification for dimensions for type S gearbox flanges for commercial vehicles and buses [ISO title Commerci[.]

ISO 7647:1986

[ISO title: Com m ercial vehicles and buses— Gearbox flang es—

Type S]

U C6 9.1 4.4 5 :6 1.8 5.2

This Bri shStan ard, ha ing

b en pre ared u der the

directonof the Automo ile

Stan ards Commi e ,was

published u der the authoriy

ofthe Bo rd of BSI an

comesinto fect on

2 J n ary1 8

© BSI0 -2 0

The folowing BSI references

relate to the work on this

stan ard:

Commi e reference AUE/13

Draft for comment8 / 75 4 DC

The prep ration of this BritishStand rd was entrusted b the Automobi e

Stand rd s Commit e ( AUE/ -) to Tech ical Commit e AUE/13, upon which

the folowing bodies were represented:

British Raiway s Board

Dep rtment of Transport ( Hig hway s)

Freig ht Transport Association

Institute of Roa Transport Eng ine r ( Incorporated)

Lond on Reg ional Transport

Ministry of Defence

National Bus Comp ny

Roa Haulag e Association Ltd

Society of Motor Man facturer and Tra er Limited

Am endm ents is ued sinc publ cation

Amd No Date of is ue Comments

Pag e

National foreword

This BritishStand ard has be n prep red u der the direction of the Automobie

Stand rds Commit e and is identical with ISO7 4 :19 6 “ Commer cia l vehicle

a nd bus s— Gea r box fla nge — Type S”, publshed b the International

Org anization for Stand rdization ( ISO)

Term inolog y and conventions The text of the International Stand rd has

be n a prov ed as suita le for publcation as a BritishStand rd without

d ev iation Some terminolog y and certain conv entions are not identical with those

used in BritishStand rds; at ention is d rawn especialy to the fol owing

The comma has be n used as a decimal marker In BritishStand ards it is cur ent

practice to use a ful point on the b selne as the decimal marker

W herev er the words “ International Stand rd” a pear,refer ing to this stand rd ,

they should be rea as “BritishStand ard ”

The Tech ical Commit e has rev iewed the prov isions of ISO1 01:19 3 to which

reference is ma e in the text, and has d ecided that they are ac epta le for use in

conjunction with this stand rd A related BritishStand ard to ISO1 01 is BS3 8

“ Engine r ing d r a wing pr a ctc ”Part3:19 2 “Geometr ica l toler a ncing”

A British Stand ard d oes not purport to includ e al the neces ary prov isions of a

contract User of British Stand rd s are responsible for their cor ect a plcation

Com pl anc with a British Standard does not ofitself confer im m unity

f om leg al o l g ations

Cros - referenc s

Inte national Stand rd Cor esp nding BritishStand rd

ISO/R28 :19 2 BS4 0 ISO Limis a nd fis

Part1:19 9 Gener a l, toler a nc s a nd d evia tions

( Tech icaly eq uiv alent)

ISO7 4 :19 6 BS AU2 4 Gea r box fla nge

Part2:19 7 Spe ifica tion fr d imensions f r type A

gea r box fla nge f r commer cia l vehicle a nd bus s

( Id entical

Sum mary of pag es

This document comprises a f ont cov er, an insid e font cov er, p g esi andi ,

p g es1 to4, an inside b ck cov er and a b ck cov er

This stand rd has be n up ated ( se copy rig ht d ate) an ma hav e ha

amendments incorporated This wi l be indicated in the amendment ta le on the

inside f ont cov er

1 Scope and field ofappl cation

This International Stand rd specifies the nominal

dimensions an tolerances which afect the

inter hang ea i ity betwe n g earbox flang es and

mating p rts used on commer ial v ehicles and

buses The flang es cov ered b this International

Stand ard are desig nated ty pe S They are not

inter hang ea le with ty pe A flang es dealt with in

ISO7 4

Dimensions not specified are left to the d is retion of

the component man facturer

2 Ref r nces

ISO28 , ISO system o lmis a nd fis

)

ISO1 01, Te h ica l d r a wings— Geometr ica l

toler a ncing— Toler a ncing o fr m, or ienta tion,

loca tion a nd r un-out— Gener a liie , d efini ions,

symbols, ind ica tions on d r a wings

ISO7 4 , R oa d vehicle — Gea r box fla nge fr

commer cia l vehicle a nd bus s— Type A

3 Dimensions and tolerances

Nominal d imensions, tolerances and bolt hole fixing

positions which afect the inter hang ea i ty of ty pe

S flang es for g earboxes are shown in Fig ure 1 to

Fig ure 3, and g iven in the Ta le

4 Desig na tion

Gearbox flang es me ting the requirements of this

International Stand rd shal be id entified b the

folowing detais in the order specified :

a) reference to this International Stand ard;

b) the siz cod e ( se Ta le);

c) the n mber of fixing bolts;

d) the siz of the fixing bolts

Exa mple:

Desig nation of a g earbox flang e ty pe S with siz

code15 0 and four14mm fixing bolts:

Flang e ISO7 4 —1 5 0× 4×14

1)

At present at the stag e of draft.( Re ision of ISO/R2 6:1 6 )

Fig ure 1

A

Ta le — Dimensions and toleranc s

Dimensions in milimetres

Siz co e

Figur

n m be

d

1 Num be

of

holes

d

5

d

2

d

3

H7 a

d

4 b

l

h

a

Se ISO2 6

b

This dimension shal b used when re uired to pre ent b lt he ds fom rotatng

+0,2

0

0

– 0,2

0

– 0,5

+0,2

0

b

B

ISO 7647:1986

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