Bsi bs au 050 2 2a 1984 (2000)

BRITISH STANDARD AUTOMOBILE SERIES BS AU 50 2 2a 1984 (Superseding BS AU 50 2 2 1984 Incorporating Amendment No 1 Tyres and wheels — Part 2 Wheels and rims — Section 2a Specification for dimensions of[.]

(Super sed ing

B SA U50-2.2:19 4

Incor por a ting

A mend ment No 1

U C 6 9.1 3.0 2.3.0 2.6 :6 9.1 4.4

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

2 Se temb r 1 8

© BSI 0 -2 0

The folowing BSI references

relate to the work on this

stan ard:

Commi e reference AUE/4

Draft for comment8 /79 5 DC

ISBN 0 5 0 1 9 0 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/ 4 upon which the

fol owing bodies were represented:

Ag ricultural Eng ine r ’ Association

British Industrial Truck Association

British Pres ure Gaug e Man facturer ’ Association

British Rub er Man facturer ’ Association

Bus and Coach Cou ci

Dep rtment of Transport

Lond on Transport Executiv e

Ministry of Defence

Motor Cy cle Association of Great Britain

Motor Ind ustry Resear h Association

Retrea Man facturer ’ Association

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

8 8 Ju e 19 5 Indicated b a sidelne in the marg in

Pag e

Appendix A W he l nav e an h b d imensions for spherical

mou ting s for commer ial v ehicles an their d eriv ativ es 5

Appendix B Recommended method for checking v ariation

Fig ure 1 — Dimensions of ty pe A mou ting : spig ot mou ting 2

Fig ure 2 — Dimensions of ty pe B mou ting : conical mou ting 3

Fig ure 3 — Ex mples of recommend ed whe l to-h b as embl es 4

Fig ure 5 — Recommend ed method for checking v ariation

Ta le 1 — Dimensions of ty pe A mou ting : spig ot mou ting 2

Ta le 2 — Dimensions of ty pe B mou ting : conical mou ting 3

BS AU5 -2, Whe ls a nd r ims, was fir t publshed in 19 4 It was rev ised in19 3

as BS AU5 -2a, Whe ls a nd r ims— D imensions In 19 4 section4 of

BSA U5 -2a was rev ised and publ shed sep rately as BS AU5 -2.2

In a dition to the dimensional d ta for commer ial v ehicle whe l mou ting s, this

Section includ es information on whe l nav e and hub mou ting s using spherical

cou ter in s in the Append ix A Fig ure 3 shows ty pical whe l to-h b as embles

which are recommended cur ent practice

There is no BritishStand rd for whe l and h b dimensions for p s eng er car

and their deriv ations, as the ty pes of mou ting s are n merous and v aried It was

d ecided that it would not be practica le to prep re a useful stand ard

Ty re, whe l, rim and v alv e req uirements are g iv en in the fol owing Parts and

Sections of BS AU5 : Tyr es a nd whe ls:

— Pa r t 1: Tyr es;

— Se ton 0: Gener a l;

— Se ton 1: Ca r tyr es;

— Se ton 2: Commer cia l vehicle tyr es;

— Se ton 3: O ff-the-r oa d tyr es;

— Se ton 4: A gr iculur a l vehicle tyr es;

— Se ton 5: Ind ustr ia l vehicle tyr es;

— Se ton 6: Motor cycle tyr es;

— Se ton 7: Moped tyr es;

— Se ton 8: Cod e o pr a ct c f r the stor a ge o tyr es, in er tube a nd fla ps;

— Pa r t 2: Whe ls a nd r ims;

— Se ton 0: Gener a l (includ ing ter ms a nd d efiniions, a nd constr uct on a nd

wor kma nship) ;

— Se ton 2: Spe ifica tion f r d imensions o whe l na ve a nd h b c ntr es fr

commer cia l vehicle ;

— Se ton 3: Spe ifica tion f r r oa d -whe l nuts, stud s a nd bol s f r commer cia l

vehicle ;

— Se ton 5: R oa d whe ls ma nufa ctur ed wholy o pa r tly o ca st lght a llo f r

pa ss nger ca r s;

— Se ton 6: Spe ifica tion f r r oa d whe ls ma nufa ctur ed wholy o pa r tly o

l ght a llo fr moped s a nd moto cycle ;

— Se t on 7: Cod e o pr a ctc fr the s le t on a nd ca r e o whe ls f r commer cia l

vehicle ;

— Se ton 8: Cod e o pr a ctc f r the s le t on a nd ca r e o whe ls f r pa ss nger

ca r s (includ ing ca r a va ns a nd lght tr a iler s);

— Pa r t 3: Va lve ;

— Se ton 1: Spe ifica tion f r va lve d imensions;

— Se ton 2: Tyr e va lve thr ea d s5V1,5V2, 6V1 a nd8V1;

— Se ton 3: Tyr e va lve thr ea d s9V1,10V2,12V1, a nd13V1;

— Se ton 4: Tyr e va lve thr ea d s8V2, 10V1, 1 V1, 13V2, 15V1, 16V1, 17V1,

17V2, 17V3,19V1, a nd20V1;

— Se ton 5: Dimensions fr ISO cor e cha mber No.1 fr tyr e infla tion va lve ;

— Se ton 6: Dimensions fr ISO cor e cha mber No.2 fr tyr e infla tion va lve ;

— Se ton 7: Cod e o pr a ct c f r the s le t on a nd ca r e o tyr e infla tion va lve

f r pa ss nger ca r s (includ ing ca r a va ns a nd lght tr a iler s);

— Se ton 8: Cod e o pr a ct c f r the s le t on a nd ca r e o tyr e infla tion va lve

f r commer cia l vehicle ;

— Pa r t 4: R im pr ofie a nd d imensions;

— Se ton 0: Gener a l;

— Se ton 1: Ca r r ims;

— Se ton 2: Commer cia l vehicle r ims;

— Se ton 3: O ff-the-r oa d r ims;

— Se ton 4: A gr iculur a l tr a cto a nd ma chine r ims;

— Se ton 5: Ind ustr ia l vehicle r ims;

— Se ton 6: Motor cycle r ims;

— Se ton 7: Moped r ims

A British Stand rd do s not purport to include al the neces ary prov isions of a

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

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

f om leg al o l g ations

Sum mary of p g es

This document comprises a f ont cov er, an inside font cov er, p g esi to iv ,

p ges1 to6 and a b ck cov er

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

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

inside font cov er

i

2.1 Scope

This Section of the stand ard specifies dimensional

requirements for whe l nav es an h b centres for

commer ial v ehicles and their deriv ativ es The

mou ting s are either ty pe A: spig ot mou ting or

ty pe B: conical mou ting

2.2 Wheel na ve and hub dim ensions

W he l nav e and h b dimensions shal comply with

the req uirements for the relev ant ty pe A or ty pe B

mou ting g iv en in Fig ure 1 and Ta le 1 and

Fig ure 2 and Ta le 2

NOT 1 Ty e A is prefer ed for future desig ns,as i is

considered that the tradi onal UK method of whe l mou tng ,

ty e B, wil g rad aly b re laced b ty e A mou tng s

NOT 2 Ex mples of recommen ed whe lto-h b as emblies

are g iv n in Fig ure 3

NOT 3 Data for spherical mou tng s are g iv n in App n ix A

for informaton only

NOT 4 Dificulty can arise d ring whe l remo al d e to

seizure on to the spig ot The use of an inter upted spig ot is

recommen ed to as ist wih remo al proced res

2.3 Stud seating plane

For ty pe B mounting s, for whe ls ca a le of being

as embled in dual formation, the v ariation of the

seating plane of the in er cou ter in s shal be not

g reater than0.25mm

NOT 1 A recommen ed checking method is g iv n in

App n ix B

NOT 2 The in er cou ter in is the cou ter in on which the

whe l n ts or stu s eng ag e when as embled as d al whe ls

W hile the plane is imp rtant only to the in er whe l of the p ir,

al whe ls are checked to ensure inter hang ea iliy

Ta le 1 — Dim ensions ofty e A m ounting : spig ot m ounting Fig ure 1 — Dim ensions of type A mounting : spig ot m ounting

Desig nation Num be of

s ud holes

a

D

1 D

2 D

3 D

4 Desig nation Num be of

s uds

a

D

1 Stud

diam ete

D

5 D

6

m in

AW 6

AW 8

AW 10/ 1

AH10/ 2

6

8

10

10

mm

20

27

2 5

3 5

mm

2

24

26

26

mm

161

2 1

17

281

mm

25

325

28

3 0

AH6

AH8

AH10/ 1

AH10/ 2

6

8

10

10

mm

20

27

2 5

3 5

mm

18

20

2

2

mm

16 8

2 0.8

17 8

28 8

mm

25

320

28

3 5

a

Stu holes an stu s shal b e ualy sp ced on pich cir le diameter D

1

+1

0 +0.2

0

0

– 0.2

0

– 5.0

Ta le 2 — Dim ensions of type B mounting : conical m ounting Fig ure 2 — Dimensions of ty e B m ounting : conical m ounting

Desig nation Num be of

s ud holes

a

D

1 D

2 d

µ c

D

3 D

4 Desig nation Num be of

s uds

a

D

1 Stud

diam ete

D

5 D

6

BW 6/1

BW 6/2

BW 8

BW 10/1

BW 10/2

BW 10/3

6

6

8

10

10

10

mm

17

20

27

3 5

3 5

3 5

mm

2 8

25

25

25

28.2

28.2

mm

26.7

31

31

31

3

3

°

8

8

8

8

8

8

mm

13

161

2 1

281

27

281

mm

2 3

25

325

3 0

3 0

3 0

BH6/1

BH6/2

BH8

BH10/1

BH10/2

8H10/ 3

6

6

8

10

10

10

mm

17

20

27

3 5

3 5

3 5

18mm

7/8in BSF

7/8in BSF

7/8in BSF

1 in BSF

1 in BSF

mm

1 9

16

2 0

28

27

28

mm

2 2

25

320

3 5

3 5

3 5

a

Stu holes an stu s shal b e ualy sp ced on pich cir le diameter D

1

b

The true p si on tolerance relates only to the stu an n t se tng

c

The a is of the cone-se tng shal b p rp n icular to the mou tng face wihin±1

+0.8

0 +0.5

– 0.2

+1

0

0

– 5.0

B

Appendix A Wheel na ve and hub dimensions for spherical mounting s for

commercia l vehicles and their deriva tives

The d ata g iv en in Fig ure 4 an Ta le 3 for the spherical ty pe of whe l mou ting is for information only an

is not p rt of the requirements of this stand ard

Ta le 3 — Dim ensions of spherical mounting Fig ure 4 — Dimensions of spherical m ounting

Num be ofs ud

holes

a

D

1

D

2

3

D

4 Stud diam ete D

5

D

6

6

6

8

10

mm

17

20

27

3 5

mm

2 8

2 8

27

27

mm

26.7

26.7

32

32

mm

16

16

18

18

mm

13

161

2 1

281

mm

2 3

25

325

3 0

mm

16 and 18

18

2

2

mm

1 9

16

2 0

28

mm

2 2

25

320

3 5

a

Stu holes an stu s shal b e ualy sp ced on pich cirle diameter D

1

b

The true p si on tolerance relates only to the stu an n t se tng

+0.8

0

+0.5

–0.2

+1.0

0

0

– 5.0

Appendix B Recommended method for checking variation ofstud sea ting s

The recommended method of checking the v ariation of the stu seating plane is b placing spherical b l s

( of equal siz ) in each seating and measuring the v ariation f om a d tum plate resting on these b l s

( se Fig ure 5)

Fig ure 5 — Re om m ended metho for che king v riation of stud seating s

b

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