Bsi bs au 050 4 4 1a 1995 (iso 4251 3 1994) scan

~

~-

~

I
:

II624669 D500IIlL

222

*

*

BRITISH S T A ND A RD AUTOMOBILE S ERIES

W

- - . -- - -

W A U 5U :
Fart

4:

Subsection 4. la :

1 995

v r e s and wheels

[SO

4251-3:

1 994

rW4F
20 pages
Part 4. Rim p ro files and dimensions

S ectio n 4. Agricultural tracto r and machine rims

Subsection 4 . l a Specification for
ply-rating marked series rims

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


1 6 2 4 6 6 9 0 5 0 0 LL2 L b 9
B S AU 50 :

Part

4 : Subsection 4 . l a : 1995

Committees responsible for this

B ritish Standard
The preparation
AW4,

of this British Standard was entrusted to Technical Committee

mes and wheels for road vehicles, upon which the following bodies were

represented

Agricultural Engineers’ Association
Automobile Association
British Industrial Ihic k Association
British Pressure Gauge Manuhdwers’ Association
British Rubber Manufactureis’Association
Confederation of Passenger Transport UK
Department

of

n-dnsport

Freight lkansport Association

of Road ‘Ii-ansportEngineers (Inc)
Motor Cycle Industry’ s Association of Great Britian Ltd.

Institute

Motor Industry Research Association

National w e Distributors’ Association
Retread Manufac turers ’ Association
Road Haulage Association Ltd.
Society of Motor Manufacturers and W e r s

This B ritish S tandard, having

been prepared under the
direction of the Engineering
S ector B oard,

was published

under the authority of the

Standards B oard

and comes into

effect on

15 October 1 995
O

BSI 1 995
Amendments issued since Dublication

S econd edition October 1 995

Amd. No.

Date

Text affected

The following BSI references
relate to the work on this
s tandard
Committee reference

AUE74

Draft for comment 9U72856 DC
IS B N

O 680 24766 2

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

I

I

Ltd.


m

~

1 b29bbï

0500113

OT5

=

B S A U 50

: Part

4

: Subsection

4.la

:

1995

Contents

Page
Committees responsible

Inside front page

ii

National foreword
S p ecification
1

Scope

2

Normative references

3

Rim c hne te rs and circumferences

4
6

1

Rim contours and valve holes

1

10

Ri mhurli ng

Annexes

A

(normative) Rim diameter measurements

11

B

(informative) Rims with nominal diameter codes 1 5.3 and 16.1

13

C

(informative) Bibliography

14

làb les

1

Rimdiameters

3

2

Dimensions of W and DW rims

3

4

Dimensions of DH rims

5

Dimensions of other drop-centre rims

7

Dimensions of SDC rims

9

4
5
6

Dimensions of divided ri m s

10

A.l

Mandreldimensions

11

B.l

Dimensions of rim size W1 1 C

13

B .2

Dimensions

of rims size 9.00

13

fi g u r e s

Specined

2

Contour of

3

Contour of DH rims

4
6
6

7

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

rim diameter

1

W

2

and DW rims

Location of valve holes in DH

2

rims

Contour of other drop-centre rims

Optional locaíion of 15.7 mm valve hole
Location of valve hole in comer of weli

8

Contour of semidrop-centre rims

8

9

Location of valve holes in SDC rims

9

10

Contour of divided rims

9

11

Rimknurllng

A.1

Specined

rim diameter and mandrel

10
diameter

12

i

162 4 667

BS

AU 50

:

Part 4

:

Subsection 4.la

:

0 5 0 0 L L4

T I

1

H

1995

National foreword

This Subsection of

this Part

of BS AU

A W 4 and is identical to IS 0 4251 3

50 has been prepared by Technical Committee

(ply-rating marked series) and rims
Rims, published by the International

1 994, ïj g- e~

fo r agricultuml tractors and machines
:

-

Part 3.

Organization for Standardization (ISO). It supersedes BS AU

Subsection 4. 1

:

50

: Part 4 :

1991 which is withdmwn. The corresponding tyre details are dealt with

in Part 1 (Subsection 4. la). Other Parts of the Standard are:
Part1
Part2
Part3
Part

q.p.9;

Wh. e&andrim;

valves.

4 of BS AU

50 (rim profiles and dimensions) was introduced to assist

cross-referencing between tyre specifications and the corresponding r
im specifications.
Subsections of Part 4 successively superseded the information contained in BS AU
Part 2

:

Section l b

: 1 980,

which is consequently withdrawn in 1995.

50

:

Cross-references
International standard

Corresponding British Standard

BS AU

IS 0 42092

:

50 q.p.9 and wheels

Rim profiles and dimensiuns
S e d o n 2 Commercial vehicle r i m s
Subsection 2.1 Spedfkation fo r metric series rims
Part 4

1 993

(identical)

The Technical Committee has reviewed the provisions of IS 0 4000-2
normative reference is

m ad e

use in codunction with

in the

:

19871) , to which

and has decided that they are acceptable for

text,

this standard.

Compliance with a B ritish Standard does not of its elf confer immunity from
legal obligations.

IS 0

4000-2

:

Subsection 1. 1

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

1987 is superseded by IS 0

: 1992

4000-2

:

1994 which is identical

wi th

BS AU 50

:

Part

4 :


I S 0 4251 -3: 1 994(E)

INTERNATIONAL STANDARD

Tyres (pl y rati n g m arked seri es) an d ri m s for

-

ag ri cu l tu ral tractors an d mach ines
Part 3:

Rims

1

3

Scope

This part of

I S 0 4251

sets ou t ri m d i m en si on s for

Ri m d i am eters an d circumferences

N om inal ri m

d i am eter codes

D ,

are

as

sh own

in

tyres of th e pl y rati n g marked seri es for agricu l tu ral

tabl e 1 rel ated to th e speci fi ed ri m d i am eter gi ven in

tractors and mach ines.

fi g u re 1 .

Tyre desi gnation and dim ensi ons,
tyre

cl assificati on

and

load ratings and

n om en cl atu re are

gi ven

For ri m d i am eter m easu rem en ts, see annex A.

in

I S 0 4251 -1 , I S 0 4251 -2 and I S 0 4251 -4 respecti vely.

A tolerance of & 1 ,2 m m on th e ri m ci rcu m feren ce i s

The ri m s speci fi ed i n th i s part of I S 0 4251

perm i tted .

be u sed for th e tyres speci fi ed i n

may also

IS0 7867-1 1 21

and

I S 0 8664[31 .
All dim ensions in th i s part of I S 0 4251

are gi ven i n

4

Ri m contours an d valve holes

m i l l i m etres.
NOTE 1

Term s

u sed

are

in

accordance

with

I S 0 391 1 :1 977[1 1 .

2
The

Drop-centre W an d D W ri m s

Dim ensi ons and tolerances of d ro pce n tre W and DW
ri m s

N orm ati ve references
fol l owi n g

4. 1

standards

contai n

th rou g h referen ce i n th i s text,

shall

be

as

gi ven

in

tabl e 2

an d

sh o wn

in

fi g u re 2.
provi sions

wh i ch ,

con sti tu te provi sions

of th i s part of I S 0 4251 . At th e ti m e of pu bl ication, th e

The
ri m.

'04

valve

1 5,7 m m

hole

shall

have

a

d i am eter

of

m m and may be on ei th er side of th e

ed i ti on s i n d i cated we re valid. All standards are su bj ect

30" f

t o revi sion , and parti es to ag reem en ts, based on th i s

The nom inal valve seat angle is

part of I S 0 4251

for valve-to-vehicl e clearance, opti onal valve seat an-

are encou raged to i n vesti g ate th e

5". To provi d e

possi bi l i ty of applyi ng th e m o st recent ed i ti on s of th e

gl es of 45" m axi m u m are perm i ssi bl e. For any angle

standards i n d i cated bel ow. M em bers of I EC and I S 0

sel ected for a given ri m, th e toleran ce i s & 5".

mai ntain

reg i sters

of

cu rren tl y

val id

I n tern ati on al

Standards.
I S 0 4000-2:1 987,

Passenger car tyres and rims

4.2

Part 2: Rims.

4209-2:1 993, Truck and bus tyres and rims (metric series) - Part 2: Rims.

IS0

Drop-centre DH ri m s

Dim ensi ons and tol erances of d rop-cen tre DH ri m s
shall be as gi ven i n tabl e 3 and sh o wn in fi g u re 3 .
The locati on of valve holes is sh o wn i n fi g u re 4.

1
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


I S 0 42 5 1 3 : 1 9 9 4 (E )

1

"
9
81

Figure

Tyre - m o u n ti n g

si d e

-

1

Specified ri m diameter

l)

1 33. 5 m ax?'
Val ve

8
1)
i s

21

Th e

t yre - m o u n t i n g

Fl an g e wi d t h

wi d th s h a l l

3)

si d e

i s

th at

si d e o f

th e

ri m

f o r

wh i ch

th e

d i m en si on

M

ap p l i e d .

be

i n c l u d e s ed g e

l o we r th an

th e

Th ese d i m e n s i o n s co m p ri s e

ra d i u s .

h i g h est

th e

Th e p o r t i o n

of

po i n t

fl an g e .

o f

th e

minimum w e l l

fl an g e

e n ve l o p e

b e yo n d t h e

f o r

minimum

t y re - m o u n t i n g

p u rp o s e s .

41

Fo r an y

an g l e

s e l e cte d

f o r

a

g i ve n

ri m .

th e

to l e ran c e

Figure

2
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

2

i s

1 5'.

- Contour o f W and DW rims

h ol e


~~

=

~

1 b2 4 bbï 0 5 0 0 1 1 7 7 4 0
1 50

Tabl e

1

-

4251

-3:1994(E)

Rim diameters
~

Nomi n al ri m diameter
Specified ri m d i am eter')

code

1)

D
R

D

8

202.4

9

227.8

10

253,2

12

304

13

329,4

14

354. 8

15

380.2

16

405,6

17

436,6

18

462

19

487.4

20

51 2.8

24

61 4.4

26

665, 2

28

71 6

30

766, 8

32

81 7,6

34

868, 4

36

91 9,2

38

970

40

1 020, 8

42

1 071 , 6

44

1 1 22,4

46

1 1 73,2

48

1 224

The specified rim diameters, D, i n millimetres, are

derived from the nominal rim diameter codes, DR, as
follows:

G

a)

D
R

b)

D
R > 1 6,

1 6, D = 25,4(DR

D

= 25,4(DR

- 0,031 25)

+ 0,1 87

5)

The values are rounded to 0.1 mm

3
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


=

~

Lb24669 0 50 0 LL8 68 7

=

I S 0 4251 -3:1 994(E)

Table 2
I

-

Dimensions of W and DW rims

- -

I
?i

Rim si ze

min.

R3

R5

a

max.

max.

min.
-

1 52,5
6"
W 8
203

W 8 H

-

10
2 54

W l O H

w

6"

228,5

w 9

w

1 5"

I

W 8 L

10 L

6 5

I

11

w

11

279.5

w

12

305

W1 3

330

20.5

~

I

W1 4L

355,5

W1 5L

381

W 16 L

406,5

W1 7L

432

W 18 L

457

DW 1 1

I

279,5

I

5
8

I f

1 5"

6.5

2.5

8
DW 1 4 L

27

355.5

6 5

DW 1 5 L

1 4.5
I D W1 7L

DW 1 6 A

I

432

I

20

406,5
8

D W 20 A
27

fi
D W 25 A

4

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

-

- -


II624669 0500IIII7 5 1 3

W

I S 0 4251 -3: 1 994(E)

Tyre- m o u n ti n g si d e"

- B re ak co rn e r e q u i val e n t
16

to R O S

min.

-

min.21

A

0.

N

QUY

1 ) The tyre- m o u n ti n g side i s t h a t si de o f th e r i m f o r which th e dimension
1 21 max. i s appl i ed .

2 ) Fl an g e wi d th i n cl u d es edge ra d i u s . The p o rt i o n o f f l a n g e beyon d th e minimum

wi d th s h a l l b e l o w e r t h a n th e h i g h est po i n t o f th e fl an g e .
3 ) These dimensions com pri se th e minimum w e l l en vel ope f o r tyre - m o u n ti n g

pu rposes.

Fi g u re 3

-

Con tou r of DH ri m s

A valve hol e i n th e corner of th e we l l as sh own i n
Tabl e 3
I

-

1

I

I

A

Rim si ze

4.3

fi g u re 7 is an optional l ocation and provi des val ve-to-

Di m en si on s of D H ri m s

I

DH 21

533, 5

DH 27

686

tol .

vehi cle cl earance. Valve seat angl es of 1 5 " m i n i m u m
to

50"

m axi m u m

are

perm issi ble.

For

sel ected for a given ri m , th e tolerance is

I

any

angle

5".

f 6, 5
4.4

Sem i -d rop-cen tre ri m s

Di m en si on s and toleran ces o f semi -drop-centre ri m s

Other d rop-cen tre ri m s

shall be as given i n tabl e 5 an d sh o wn in fi g u re 8.

Dim ensi ons and toleran ces of oth er drop-centre ri m s
shal l be as g i ven i n table 4 and sh o wn i n fi g u re 5.

The l ocation of valve holes is sh own i n fi g u re9.

The normal locati on of valve hol es i n th ese ri m s i s
sh own i n fi g u re5.

The val ve hole may be on ei th er

4.5

Di vi d ed ri m s

si de of th e ri m we l l .
Di m en si on s and tolerances
The valve h ole di am eter shall be
a)

1 5,7 m m

of di vi ded ri m s shall be as

given i n tabl e 6 and sh o wn i n fi g u re 1 O.

m m fo r ri m s of nom inal ri m diam -

The l ocation of valve h ol es is sh own i n fi g u re 1 0.

eter code 1 5 and above;
The val ve hole di am eter shall be
b)

1 1 ,3 mm

+ t 4m m

for ri m s of nom inal ri m diama)

eter code 1 4 and bel ow.

1 5, 7 m m

+ t 4mm

for ri m s of nom inal ri m diam -

eter code 1 5 and above;
An opti onal locati on of val ve holes in ri m s of diam eter
code 1 5
1 5, 7 m m

and
+!*4

above

(val ve

h ole

m m ) is sh own i n fi g u re6.

diam eter

b)

1 1 ,3 m m

+y

m m fo r ri m s of nomi nal ri m di am-

eter code 1 4 and bel ow.

5
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


~~

m

162 4 669 0500 12 0

235

=

I S 0 4251 -3:1 994(E)

11 M ai n t ai n 8 max. dimensi on by co u n te rb o ri n g
on th e we ath e r si d e o f th e r i m on l y.

Fi g u re 4

-

Locati on of valve h ol es i n DH ri m s

Tyre-m ou n ti n g si d e’ )

- B re ak co rn e r e q u i val e n t t o

-B

R

0.5

min.

2)

A

M
P

--7

L

”

-

I,

c1
z

I

1 ) The tyre - m o u n ti n g s i d e i s t h a t si d e o f th e r i m f o r wh i ch th e di mension

M

i s appl i ed .

2)

Fl an g e wi d t h i n cl u d e s edge ra d i u s . The p o r t i o n o f f l a n g e beyon d th e minimum

wi d th s h a l l be l o w e r t h a n th e h i g h e s t p o i n t o f t h e fl an g e .

3 ) These dimensions com pri se th e minimum w e l l e n ve l o pe f o r tyre - m o u n ti n g
pu rposes.

Fi g u re 5

6
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

-

Con tou r of oth er d rop-cen tre ri m s


.

I S 0 4251 -3:1 994(E)

*
-

Tabl e 4

Rim rire1 )
to l .

2. 50 A

2. 50 C
3.00 D

1 1 .5
3. 50 D

1 6. 5

1 3. 5

18

18

I

10

I

16

Di m en si on s of oth er d rop-cen tre ri m s

-

-

R4

a 2)

min.

min.

4

-

-

1

Val ve
hole: see
fi g u re

O"

-

2 8. 5

32

1 3"

~

22

6
lo"

4. 0 0 E

1 2. 5

1 01 . 5

4. 2 5 KA

I

I2

38

-

9 5

4. 50 E

4 1 /2 K

19

7 5"

26

20

1 2, 5

-

23

-

-

12

1 1 4, 5

20

4

10

F

5. 0 0

1 O"

5 or 6

-

13

22, 5

26

8. 5

16

19

6

1 27

I

5 K

20

4

1 5"

I

I

6
1 39, 5
5 1 /2 K

4

22, 5

6

1 2. 5

1 52. 5

6 LB

>I

4

-

22

I

1 O"

5 or 7

1 5"

5 or 6

1 78

lo"
I

9

I

228, 5

1 0LB

I

254

2

1 5"

6

1 O"

5

or

7

1 3. 00
1 5"
12

I

14

25, 5

-

3555

sizes 3 . 0 0 B,

4 J, 4 1 /2 J, an d 5 1 /2 J, see

IC0

4000-2 an d /o r I S 0 42 0 9 - 2 .

1)

For r i m

2)

Laraer val u es rnav b e reau i red t o en su re s u ffi ci e n t seace fo r tu b e l e s s tvre val ve ceati n a

7
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


W

I1 624669

0500322

008 W

I S 0 4251 -3: 1 994(E)

Local d epressi on to
c l e a r va l v e h e a d

Fi g u re 6

-

Opti on al l ocati on of 1 5,7

mm

val ve h ol e

1 ) For an y a n g l e s e l e c t e d f o r a g i ven

rim, t h e t o l e r a n c e i s t5’.

Fi g u re 7

R 1 min.

-

Locati on

of val ve h ol e i n corner of wel l

1 3 min.”

7

A

1 ) Fl an g e wi d th i n cl u des ed g e ra d i u s . The p o rt i o n o f f l a n g e beyon d th e minimum

wi dth s h a l l be Lower t h a n th e h i g h est poi nt o f t h e fl a n g e .

N OTE - Flange and bead seat rem ovabl e on on e side of ri m .

Fi g u re 8

8
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

-

Con tou r

of sem i -d rop-cen tre ri m s


~

m

1 62 4 669 0 50 0 1 2 3

T44

m
I S 0 4251 -3:1 994(E)

I

A

Rim size

tol .

11
12
13

279, 5
305
330

+5

-

f 6, 5

*IO'

Fi g u re 9

r

-

B re ak co rn e r e q u i val e n t t o R

Locati on of val ve h ol es i n SDC ri m s

0.5 min.

1 ) Fl an g e wi d th i n cl u d e s edge rad i u s . The p o r t i o n o t f l a n g e beyon d th e minimum
wi d th s h a l l

be l o w e r t h a n th e h i g h e s t po i n t o f
Figu re 1 0

th e fl an g e .

-

Con tou r of d i vi d ed ri m s

9
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

~~

1 b24bbỵ

IS0

4251 -3:1 994(E)

Table 6

Rim

I

si ze

2. 50 C

i ~ 2

B

I

~~ ~

~

I

4. 00 E

5. 00 F
5. 50 F

Rim

Dimensions of divided rims

11

+1
16.5

11, 5

12

7.5

12

11, 5

18

12, 5

14

8

13

101. 5 1 12, 5
127
13

20

13. 5

25

85

14

22, 5

14. 5

23.5

9, 5

15, 5

20
22, 5

10, 5
14, 5

19, 5

-

23. 5

9.5

10.5
15.5

63.5

139. 5

5 112 K
6. 00 F

-

G

min.

76

3. 00 D

5

0 50 0 1 2 4 98 0

12
13

152, 5

min.

knurling

b)

kn u rl i n g

on

bead

seats

sh o wn

as

for ri m s wi t h

in

m ax.

min.

3, 5

5

9

10
6, 5

12

12

11

max.

14

12
11

16

21

20

26

kn u rl i n g wi d th shall be 1 0 m m m i n . for ri m s w i t h
bead seat wi d th

Transverse

rnax.

P, , ,

P, , ,

< 33 m m and 20, 5 m m m i n .

2 33

mm;

fi g u re 1 1 i s m andatory on W, DW and DH ri m s of ri m
wi d t h

codes 1 4

or

wi d e r

wi t h

nom i n al

d i am eter

C)

th e pi tch of kn u rl i ng shall be 1 , 6 m m to 3, 2 m m ;

dì

th e d e pth of kn u rl i n g shall be 0.4 m m to 0,8 m m ;

cod es 24 or larger. The fo l l o wi n g speci fi cati on s apply:

a)

kn u rl i n g

shall

start 9,5 m m

f 0,8

m m fro m

th e

fl an g e and shall be 1 ,6 m m m i n . fro m th e bead

Figu re 1 1

10

th e m i n i m u m h ei g h t of kn u rl i ng sh al l be 0, 2 m m
above th e bead seat plane.

seat radi u s (see fi g u re 1 1 I ;

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

e)

-

Rim kn u rl i n g


Annex A

(n ormati ve)

Rim diameter measurements

Ri m di ameter m easu rem en ts (see clause 3) shall be
perform ed u si ng a

ball tape ch ecked on a

have nom i nal ci rcu m feren ce or m axi m u m ci rcu m ference.

mandrel

(see f i g u r e A . l ) . The ball di am eter sh ou ld usually be
Ball si zes oth er th an 1 6 m m m ay be u sed i f a su i table

1 6 mm.

alterati on t o th e m andrel di am eter and ci rcu m feren ce
d i m en si on s i s made (see t a b l e A . l ) .

I t wi l l be l e ft t o th e di screti on of th e i ndi vi du al n ati onal

standards

org ani zati on

wh eth er

th e

m andrel

sh al l

Table A . l

-

Mandrel dimensions

Nominal rim

Nominal

Nominal

Maximum

diameter

mandrel

mandrel

mandrel

mandrel

code

diameter

circumference1)

diameter

circumference1 )z)

DM

D R

UM

Maximum

DM,rn ax

8

201 ,O7

63 1 , 7

201 , 45

63 2, 9

9

226 , 47

71 1 ,5

226, 8 5

71 2. 7

10

251 , 8 7

791 ,3

25 2, 25

7 9 2. 5

12

3 02. 67

9 5 0, 9

3 03 , 05

9 5 2. 1

13

3 28 , 07

1 03 0, 7

3 28 , 45

1 03 1 . 9

14

3 5 3 , 47

1

1 1 0, 5

353,85

1

1 1 1 ,7

1 5

378,87

1

1 90, 2

3 7 9 , 25

1

1 91 ,4

16

404 , 27

27 0

404, 65

1 27 1 , 2

17

43 5 . 22

1

3 67 . 3

43 5 , 6

1 3 68 , 5

18

460, 62

1 447 . 1

19

48 6, 02

1

20

51 1 , 4 2

24
26

1

46 1

1

448 , 3

5 26. 9

468 . 4

1

5 28 , l

1

606 , 7

51 1 . 8

1 607 . 9

61 3 , 0 2

1

9 25 . 9

61 3 , 4

1

663 , 8 2

2 08 5 . 5

664, 2

2 08 6. 7

28

7 1 4, 62

2 245 , l

71 5

2 24 6 . 3

30

7 65 , 4 2

2 404, 6

7 65 , 8

2 405 , 8

32

8 1 6, 22

2 5 64, 2

8 1 6. 6

2 5 65 ,4

34

8 6 7 . 02

2 7 23 , 8

867,4

2 7 25

36

91 7 , 8 2

2 883,4

91 8 . 2

2 8 8 4. 6

38

968,62

927 . 1

3 043

969

3 04 4 , 2

40

1

01 9 , 42

3 202. 6

1 01 9, 8

3 203 . 8

42

1

07 0, 22

3 3 62. 2

1

07 0. 6

44

1

1 21 , 02

3 5 21 , 8

1

1 21 , 4

3 5 23

46

1

1 71 ,82

3 68 1 , 4

1

1 7 2. 2

3 68 2. 6

48

1 222. 62

3 8 41

1 223

3 3 63 , 4

3 8 42, 2

11
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


~

m

3 6 2 4 6 6 9 050 032 6 7 5 3 m

I S 0 4251 -3:1 994(E)

E

a

a
e

Figure A . l

12
Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

e

-

Specified ri m diameter and mandrel diameter

~

=

Lb24bb9

0500327

b9T
I S0

4251 -3:1994(E)

Annex B

(i n form ati ve)
Rims wi th nominal diameter codes 1 5.3 and 1 6.1

B.1

M an drel d i m en si on s:

This annex has been drafted t o recogni ze th e

exi sten ce of th e 1 5. 3 and 1 6. 1 ri m sizes onl y. These
ri m

sizes are

n ot i n

h arm on y wi th

exi sti n g

DM:

worl d

406, 1 8 mm

UM: 1

stan dardized sizes. For reasons of safety, th e use of

DM, max:
406, 56 mm

276 m m

1 277, 2 m m

th ese ri m sizes shou l d be restri cted to th e m em ber
cou n tri es wh ere th ey are presen tl y i n u se. N o n e w

B.2.2

Rim 1 5.3 x 9.00

designs sh ou l d em pl oy th ese ri m sizes.
N om i n al ri m di am eter code,

B.2

The tech n i cal data of th e form erl y standardized

DR:1

5. 3

Speci fi ed ri m di am eter, D : 388, 3 m m

ri m s wi th nomi nal di am eter codes 1 5. 3 and 1 6. 1 are
g i ven i n 8. 2. 1 and 6. 2. 2.

Di m en si on s and tol eran ces are g i ven i n tabl e B.2 an d
sh own i n fi g u re 5.

Rim

B .2.1

16.1

x W

11

C

M an drel di m en si on s:

N om i n al ri m di am eter code, DR: 1 6. 1

DM: 386, 98

Speci fi ed ri m di am eter, D : 407, 5 m m

UM: 1

mm

D Ma rn a x
387,
:
36 m m

21 5, 7 m m

U
M
.,,,:

1 21 6. 9 m m

Di m en si on s and tol erances are g i ven in table 6. 1 and
sh own i n fi g u re 2.

Tabl e B . l

-

Tabl e B.2
B

A

Rim si ze
~~

9.00

228, 5

to
to ll ..

m
m ii n
n ..

I 2 , 5

12

G

f
f

H

')

Di men si ons of rim si ze W 1 1 C

C

Di men si ons of ri m si ze 9.00
L

M

P

RI

R3

R4

R,o

a 1)

Val ve

..-.-.

hole:e

,see
,

1
1

19

34

11

50

m ax.

min.

60

25

m ax.

-

i ) Larg er values m ay be re q u i re d t o en s u re s u ffi ci e n t space fo r t u b e l e s s t yre val ve seati n g .

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

R,

11

6, 5

min.
6

-

min.

fi g u re

1 5"

5or 7

1

13


162 4 669

0500328

526

I S 0 4251 -3:1 994(E)

Annex C
(i n form ati ve)

Bibliography

391 1 : 1977, Wheels/rims- Nomenc/ature, designation, marking, and units of measurement.

Cl]

IS0

[2]

I S 0 7867-1: 1992,Tyres and rims (metric series) for agricultural tractors and machines - Part 1 : Tyre designation, dimensions and marking.

[3] I S 0 8664:1992. Agricultural tractor drive-wheel tyres - Service description

marked tyres.

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy

14

(load index

-

speed symbol)

1 62 4 669 0 50 0 32 9 4 62
a
B S AU 5 0 : Part 4 : S ubsection 4 . l a : 1995

L i s t of references

See national

foreword.

Reprodu ced by I H S u n d er l i cen se wi th BSI - U n con trol l ed Copy


- ~

~~ ~

BS A U

Part

=

162 4 667

0500130

I184

m

50 :

4:

Subsection 4.la :

1995
I S 0 42513 :

BSI - British Standards Institution

1994
TW-6F-20

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