Bsi bs au 211 1987 (2000) iso 8719 1986

BRITISH STANDARD AUTOMOBILE SERIES BS AU 211 1987 ISO 8719 1986 Specification for Dimensions of four hole flanges for gear driven air compressors for commercial vehicles and buses [ISO title Commercia[.]

ISO 8719:1986

[ISO title: Com m ercial vehicles and buses— Four-hole flang es for

g ear-driven air com pres or ]

U C 6 9.1 4.4 5:6 1.5 0 –1 2.2 :6 1–6 3.4 2.3

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 comes

into fect on

3 J n ary 9 7

© BSI0 -2 0

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:

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

Fig ure 2 — Dimensions an location of lubricating oi inlet con ection 2

Fig ure 3 — Location of lubricating oi outlet outside the centring shoulder 3

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 ISO8 19:19 6 “ Commer cia l vehicle

a nd bus s— Four -hole fla nge fr gea r -d r iven a ir compr es or 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 ”

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g iv n b low was diso ered I has b en marked in the te t an has b en re orted to ISO in a pro osal

to amen the te t of the Internatonal Stan ard

Clause should b n mb red as clause an clause should b n mb red as clause

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

f om leg al o l g ations

1 Scope and field ofappl cation

This International Stand rd specifies nominal d imensions and tolerances of four-hole flang es for

g ear-driv en air compres or ; it also specifies the locations of lubricating oi inlet and outlet con ections

This International Stand rd a ples to flang es of g ear-driv en compres or mou ted on reciprocating

internal combustion eng ines for commer ial v ehicles and buses

3

1)

Dimensions and tolera nces

3.1 Dimensions of the four- hole flang e

The flang e config uration shal be contained within the area of dimensions P, W, H, A , B and r

( se Fig ure 1 and Ta le 1)

Ta le 1

1)

Se natonal foreword

Fig ure 1 — Four- hole flang e config uration

Dimensions in milimetres

d

h8

L

± 0,2

M

± 0,2

N

± 0,2

O

± 0,2

P

ma

ma

H

ma

ma

E

+ 0,3

0

+ 2

0

3.2 Dim ensions and locations oflubricating oi inlet conne tion

The choice betwe n the two pos ible locations( 1 or2) of the lubricating oi inlet con ection shal be decided

b mutual ag re ment betwe n sup ler and user ( se Fig ure 2 an Ta le 2)

Ta le 2

3.3 Location of lubricating oi outlet conne tion

There are two pos ible locations for the dis harg e of the lubricant;both pos ibi ities ma be prov id ed at the

compres or

a) Outlet within the centring shoulder In this case, as embly is pos ible up to8 ° of rotation arou d the

horiz ntal a is of the c an shaft on either sid e

NOT As this ty e of compres or can alwa s b mou ted to re lace the one d efined inb), this alternatv e is recommen ed for

the future

b) Outlet outside the centring should er In this case the area where the hole shal be located is defined

b esta lshing two diameter v alues an the wid est ang le g iv en in Fig ure 3

NOT In this case,the minimum outside radius v lue ( smalest) an the ma imum inside radius v lue (larg est) that are set b

the eng ine man facturer shal rule

Fig ure 2 — Dim ensions end location of lubricating oi inlet conne tion

Dimensions in milimetres

Location

F

± 0,2

G

± 0,2

S

± 0,2

T

± 0,2

min

+ 0,2

0

4 Other specifications

Dimensions and requirements not g iv en in this International Stand rd are left to the d is retion of the

man facturer

Fig ure 3 — Location of lubricating oi outlet outside the c ntring shoulder

ISO 8719:1986

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