¿ B S I BS*AU *SO PTL S U B S E C * 5 * 2 94 Lb24bb9 0408375 583 W BRITISH STANDARD AUTOM0BII;E SERIES Tyres and wheels Part 1 Tyres Section 5 Industrial vehicle tyres Subsection 5 2 Specification for[.]
Trang 1BRITISH STANDARD AUTOM0BI ; E SE RIE S
Part 1 Tyr s
Section 5 Ind us trial vehicle tyr es
O
O U C 69.1.02.5 : 6 -1 82.3
BSAU50:
Partl
1994
1992
TW- 2.2F
12 p ages
Trang 2Thi Su se tio ofthis Par t ofB S AU 5 h s be n pr ep r ed u der the d ir ectio
oftheAuto mo b i l e St an ar ds Po lic y Commite e a d
is ident ical wit h
IS
3739-1
:
19 2 Ind ustr ial t yr es an d rims - Par t 1
; Pneumatic t yr es (metric se rie s) on 5"
ta e ed or flat ba s e rims -Desig utio , d imensio s an d marking, p bl shed
b the Int er nat io al Org n izatio for St an ar dizat io (SO) Ot her Pa rts ofthis
st an ar d a r e:
Pa rt 2 Whe l s an d rim
Par t 3 Vul ves
Pa rt 4 Rim pr ofiles a d d imensio s
Cro s s -references
Inter na tiona l s tandard C orr sponding Brit ish Stan ard
IS0 3 -0 : 19 1 B S 5 7 S pe&ficatio for q a t it ies, u is a d symb ls
Par t O : 19 2 G ene al pr inciples
The %ch ical Commite e h s r eviewed the pro ision s ofIS0 38 7-1a d
IS0 4 23-1 to w hi ch n rm a tive r ef r enc is m ad e i n the text a d h s d ecid ed
th t t hey are a cc pt a ble for use in co ju ctio wit h t his st an a r d
C omp lianc wit h a Bri ti sh Standard doe s n ot of it self c on fe r immuni ty from
lega l o lga tions
BS AU 60 : Part 1:Su bse c ti on 5.2 :1994
O
a
e
O
Trang 3C ontents
N a tio a l for eword
Commite e s resp nsible
p ag e
Insid e fro t pa ge
Bac k page
Spe ification
1 Sco p e
2 N ormativ r ef r enc s
3 De initio s
4 Tyre d esig a tio s
5 M arki ng
6 Tyr edimensio s
7 D es ig n tyre d im ensio s
8 Ty re siz com bina tio s
9
Me th od ofm easur em ent ofWe d im ensio s
~ ~
‘Igbles
2 Cor relatio betwe n load in ex ( LI) a d tyre load -ca rryin ca pa cit y
Coe ficients for ca lculatio ofmax imu m o era ll tyre d im ensio s i n
Rec o mmended com bina tio s ofn omin al se t io widt hs a d r im
4
6
Trang 4Indust ria l ty r es and r ims
Pneumat ic tyres (metric ser ies) on 5" taper ed or flat ba se
1 S cop e
This p rt of IS03 3 sp cifies the main req ire-
ments, in lu in desig ation , dimen ion an
markin s of the metric series of pneumatic tyres
primari y inten ed for in u trial vehicles for u e on
pre ared s rfaces The tyres are b sed on the fol-
low¡ n p rameters :
a) sp ed not ex e din 5 k m/h;
b) u e on 5" ta eredor flat b se rims;
c ) rim diameters not ex e din riin diameter code
of 15
N OT 1
dia meter co de may b c on idered
The ex ten ion of the range o f this nominal rim
0 IS0 3739-2 de ls with lo d ratin s; IS 0 3739-3 de ls
with rim contours for these tyres
2 Nor mativ e r ef er ences
The folowin stan ard contain provision whic ,
throu h referen e in this text, con titute provision
of this p rt of IS0 3739 At the time of publcation,
the edition in icated were vald Al stan ard are
s bject torevision, an p rties t o agre ments b sed
on this p rt of IS0 3 3 are en ouraged to in
esti-gate the p s ibi ty of a plyin the most recent ed
i-tion of the stan ard in icated b low Memb rs of
IEC an IS0 maintain registers of c r ently val d In-
ternational Stan ard
IS0 31-0 :19 81, General principle co c rnin q anti
tie , u its and symb ls
IS0 387 -1:1978, Tyre , valve and tu e - L ist of
eq ivalentterms -Part 1: Tyre
IS04223-1:1989, Definitio s ofsome terms us d in
fhe tyre industry -Part I: Pneumatic tyre
3 Definitions
For definition of terms relatin to tyres, se
IS04223-1; eq ivalent terms are given in
I S0 387 -1
4 Tyre de signa t ions
4.1 Dime sional a d con trucLa a
c ara teristic
The c aracteristic s al be in icated as folows:
N o ml n al
rim d iameter
4.1.1 Nomin l s c on width
The nominal section width of the tyre s al b in i-
cated in mi imetres,en in either inO or 5
4.1.2 Nomin l a spe ct r atio
The nominal asp ct ratio s al b expres ed as a
p rcentage an s al b a multiple of 5
Trang 5Nomin l rim
diameter c d
4
6
8
9
10
12
15
IS0 3 3 -1 :19 2(E)
Nomin l rim diameter, D,
mm
10
15
2 0 3
2 9
2 4
3 5
3 8 1
4.1.3 T y r e con t ruction cod
The tyre con tru tion code s al b as folows:
D or "-"(a das ) for diagonal con tru tion;
R for radial plycon tru tion
4.1.4 Nomin l rim diameter cod
For tyres mou ted on existin rims, the code s al
b a s given in tablel
4.2 Servic con ition c ara teristic
The service con ition c aracteristic or service de-
s ription s al b in icated a s folows:
L ad in ex Sp ed s mb l
4.2.1 L o ad in e
The lo d in ex is a n merical code as ociated with
a maximum lo d a tyre can cary at the sp ed in i-
cated by its sp ed s mb l u der service con ition
sp cified by the tyre man facturer
The corelation b twe n lo d in ices an tyre lo d-
caryin ca acities s al b a s given in ta le 2
4.2.2 S p eed s ymb o l
The sp ed s mb l s al be as given in ta le The
sp ed s mb l or sp ed category in icates the r ef
eren e sp ed defined as the sp ed at whic the tyre
can car y the lo d cor esp n in to its lo d in ex
u der the sp cified service con ition
The referen e sp ed for tyre lo d identification of
in u trial tyres s al b 2 km/h, ¡ e sp ed
s mb l A5
Trang 6A 2
A3
A4
A5f
A6
A7
A 8
LI
I
10
15
2 0
2 '
3
3
4 0
4
41
4
4
4
4
4
4 7
4 8
4
5
51
5
5
5
5
5
5
5
5
6
61
6
6
6 4
6
6
6 7
6
6
7
71
7
7
7
7
7
7 7
7 8
7
B
-5
T LCC
kg
14
14
15
15
IRJ
16
17
17
18
18
19
19
2 0
2 6
212
218
2 4
2 0
2 6
2 3
2 0
2 7
2 5
27 2
2 0
2 0
3 0
3 7
31 5
3 5
3 5
34 5
3 5
3 5
37 5
3 7
4 0
4 1 2
4 5
4 37
LI
8
81
8
8
8
8 5
8
8
8 8
8
9
91
9
9
9
9
9
9
9
9
10
101
10
10
10
10
10
10
10
1o
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
T LCC
kg
4 0
4 62
4 75
4 7
5 0
515
5 0
5 5
5 0
5 0
6 0
615
6 0
6 0
6 0
6 0
710
7 0
7 0
7 5
8 0
8 5
8 0
8 5
9 0
9 5
9 0
9 5
100
10 0
10 0
1O 0
1 12
1 5
1 8
1215
12 0
12 5
13 0
13 0
LI
12
121
12
12
12
12
12
12
12
12
13
131
13
13
13
13
13
13
13
13
14
141
14
14
14
14
14
14
14
14
15
151
15
15
15
15
15
15
15
15
~
T LC
kg
14 0
14 0
15 0
15 0
1 6 0
16 0
17 0
17 0
18 0
18 0
19 0
19 0
2 0
2 0 0
2 12
2 18
2 2 0
2 3 0
2 3 0
2 4 0
2 5 0
2 5 5
2 6 0
2 7 5
2 8 0
2 9 0
3 O 0
3 0 5
3 15
3 2 0
3 3 0
3 4 0
3 5 0
3 6 0
3 7 0
3 8 5
4 O0
4 12
4 2 0
4 3 5
LI
16
161
16
16
16
16
16
16
16
16
17
171
17
17
17
17
17
17
17
17
18
181
18
18
18
18
18
18
18
18
19
191
19
19
19
19
19
19
19
19
T LCC
kg
4 5 0
4 6 5
4 7 0
4 8 5
5 0 0
5 15
5 3 0
5 4 0
5 0
5 8 0
6 0
6 15
6 3 0
6 5 0
6 7 0
6 900
7 10
7 3 0
7 5 0
7 7 0
8 0
8 2 0
8 5 0
8 7 0
g o
9 2 0
9 5 0
9 7 0
10 O0
10 3 0
10 6 0
10 90
1 2 0
1 5 0
1 8 0
12 15
12 5 0
12 0 0
f32 0
13 6 0
T able 3 - Cor r elation betwee s p eed s ymb o l and
s p ee d ca te gory
I
I
Sp e cate ory
km/h Spe d symb l
I
ISO 3 3 -1 :19 2(E)
(TLCC )
LI
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
210
21 1
21 2
21 3
214
215
216
21 7
218
219
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
T LC
kg
14 OM3
14 5 0
15 o0
15 50
16 00
16 5 0
17 O0
17 5 0
18 wu
18 5 0
19 o0
19 5 0
2 o0
2 6 0
21 2 0
21 8 0
2 4 0
2 O0
2 6 0
2 3 0
2 O 0
2 7 0
2 5 0
2 2 0
2 O0
2 0 0
3 O 0
3 7 0
31 5 0
3 5 0
3 5 0
34 5 0
3 5 0
3 5 0
3 5 0
3 7 0
4 O0
4 2 0
4 5 0
4 7 0
I
I 1) Se 4.2.2
Trang 7IS0 37 39-1:19 2( E)
4.3 Other s rvic c ara teristic
5.2 Ma imum spe d marking
c aracterize tyres that can b u ed without a tub
4.3.2 Sp cific in ication , if req ired, may b
ad ed to s ow for example the prefered direction
of rotation, in icated by an ar ow
5 Mar king
5.1 General marking
The markin s al con ist of
a) the desig ation of the dimen ional an
con-stru tional c aracteristic :
b) the desig ation of the service con ition c arac-
teristic (lo d in ex an sp ed s mb l);
c) the desig ation of other sewice c aracteristic
The location of the markin of the service con ition
c aracteristic (lo d in ex an sp ed s mb l) s al
b distin t but in the vicinity of the markin of the
dimen ional an con tru tional c aracteristic
No location is sp cified for the markin s related to
other service c aracteristic (se 4.3 1 an 4.3 2 )
EX A MPL E
1 0 6 R9 markin of dimen ional an con-
stru tional c aracteristic
1 6A5 markin of lo d in ex an sp ed
s mb l (distin t location but in the
vicinity of the precedin markin )
TUBE LESS location lef t o the dis retion of the
tyre man facturer
The c aracteristic of a tyre with the a ove
markin s are a s folows:
18 0 : nominal section width eq al to
6 :
R : radial ply con tru tion;
9:
18 0 mm;
nominal asp ct ratio eq al to 6 ;
nominal rim diameter code, cor
e-sp n in to 2 9 mm;
1 6 :
A5:
TUB ELE S S : tyre to b u ed without a tub
lo d in ex (LI) cor esp n in to a
tyre lo d of 1 250 kg;
sp ed s mb l cor esp n in to a
sp ed category of 2 km/h;
If the maximum sp ed of a tyre is les than
5 km/h, its actual maximum sp ed s al b mark d
on the tyre, fo r example “4 km/h max.” or
“max 4 km/h”
6 lyredime nsions
The formula -derived values for desig tyre dim
en-sion s al b rou ded t o the ne rest mi imetre For
rou din o f values, se IS0 31-0, an ex B
6 1 Calc lation of “de ign tyre” dime sions
6.1.1 T heor etic l rim widt h, Rth
The the retical rimwidth, Rth, is eq alto the prod ct
of the nominal section width, SN , an the
rim/section ratio, K,:
R fh
=
K i&
For in u trial tyres mou ted on 5” ta ered an flat
b se rims, Ki = 0 ,7 a ples for tyres havin nominal
asp ct ratios (Z1l.c) from 6 to 8 in lu ive
NOT 2
tyre an rim type s
Othe r Ki values may be def ined later for other
6,1.2 De sig tyre s ec t ion width, S
The desig tyre section width, S, is the nominal
section width, S, tran fered from the the retical
rim, Rt h, to the me s rin rim, X,:
S = S + 0,4( R, - Xth)
where R, an h!th are expres ed in mi imetres,
6.1.3 De sig tyre sec on he ig t, I
The desig tyre section heig t, /I, is eq al to the
prod ct of the nominal section width,
S,
an the
nominal asp ct ratio, I /S (IJ/S expres ed as a p r-
centage):
HI S
!=S -
IO0
6.1.4 De sig tyre ov er al diameter , Do
The desig tyre overal diameter, Do, is the s m of
the nominal rim diameter, Ilr, plu twice the desig
tyre section heig t,
I :
n o = n, + 21
For the values of D, to b u ed, se ta le 1
Trang 8IS037 39-1 :19 2( E)
0
6.1.5 Guide line s fo tyre dime sions
Guidelnes for the desig tyre dimen ion are given
inta le 5,
prod ct of the desig tyre section heig t, H, an the
a pro riate co ficient, b (se ta le 4):
D, , = D, + 2Hh
6.2 Calc lation of “ma imum ov ral tyre
dime sions in s rvic ”
Ta ble 4 - C o effic ient s for c alc ulat ion of maximum
ov er al tyre dime sio ns in s e rvic e
This calc lation is for u e by vehicle man facturers
in desig in for tyre cle ran e
These dimen ion are to b calc lated with the c o-
eficients (se ta le 4)a pro riate to the desig tyre
section width an desig tyre section heig t
Con stru ti on
+Ra lal
consiru ion
Dia on l D o 1
ra t io
65
to a
6.2.1 Ma x imum ov r al width in s r v ic , W ,,
The maximum overal width in service, W, is
eq alto the prod ct of the desig tyre section w idth,
S, an the a pro riate co ficient, a (se ta le 4)
w, , , = Sa
7 Design tyre dime nsions
The relevant dimen ion for the recommen ed met
ric series of in u trial tyre nominal tyre section
width, me s rin rim w idth, desig tyre section
width an desig tyre section heig t for tyres of
nominal asp ct ratios 6 to 8 5 are s own inta le 5 6.2.2 Ma x imum ov r al dia me te r i n s ervic e, D, ,
T he maximum overal diameter in service, Do,max , is
eq alto the nominal rim diameter, Il, plu twice the
Ta ble 5 - Tvre dime siona l g ide lines
Nomin l s ction
width
LY
mm
De ig tyre dime sion , mm
Se tion h ig t, H,at nomin l a pe t r atios HIS (YO)
Me s rin rim
w idth cod
Se tion
w idth
1 O0
1 0
1 5
1 0
1 0
1 0
2 0 0
2 5
2 50
2 0
3 15
3 5 5
2.5
3.2
3.2
4.0
4.0
5.0
5.0
6.5
6.5
8.0
8.0
1.0
8
9
1 6
1 9
13 6
1 3
1 0
11
2 3
2 38
2 68
30 2
7
8 3
9
1 0 5
1 0
1 35
i5 0
1 9
1 8
2 10
2 6
2 6
6
7
8
9
1 4
1 7
1 0
1 6
1 3
1 2
2 0 5
2 1
9
1 2
1 3
11
1 6
1 0
195
2 2 8
2 4 6
2 3
3 8
35 7
7 0
7
8
9
1 2
1 6
1 0
1 8
1 5
1 6
2 2 I
2 4 9
8 0
8 8
1 O0
1 2
1 8
1 4
1 0
1 0
2 0 0
2 4
2 52
28 4
Trang 9IS03 3 -1 :1 9 (E)
8 Tyre size c o mb inat ions
The recommen ed combination of nominal section
width an rim diameters for metric series of in u -
trial tyres are s own in ta le
9 Me t hod of measur ement of tyre
dimensions
Before b in me s red, the tyre s al b mou ted
o its me s rin r im, inflated to the recommen ed
pres ure, an alowed to stan for a minimum of
2 h at normal ro m temp rature, afler whic the
inflation pres ure s al b re dju ted to the original
value
Ta ble 6 - Rec o mmended c o mb inatio ns of no mina l
s e c tio n width a d rim dia me t ers
Nominai tyre
s ctlon width
S
m m
1 O0
1 0
125
14
16
18
20 0
2 5
25 0
2 0
31 5
355
-4
*
*
*
*
Nomin l rim diameter cod l)
-6
*
*
*
*
*
-8
-9
*
*
*
*
*
-10
-*
*
*
*
*
-1
-*
*
*
*
*
*
*
-15
-*
*
*
*
*
*
*
-1) Comb ination marked w ith an asterix ( ) are rec -
ommend ed
Trang 10BS AU 50:Part 1 :Su bse c ti on 5.2 :19 9 4
List of re fe re n c e s
e
S ee n ation al fo rew o rd
Trang 11BS AU 50 :
Subs ectio n 5.2 :
19 9 4
19 9 2
This B t ish Sta dard, h vin
b e pre ared u der th
dir ect io of th Autom obie
Sta dards P o l icy Comm it tee;
wasp blsh d u der th
a th rity of th Sta dards
Boa rd a d com es into efect o
15 Fe r ua r y 19 4
O BS I 19 4
The folowin BS I refere ces
relate to t he wor k o this
sta dard:
Com m it t ee refere ce A UE/4
Draft for comme t 9 /7 6 7 DC
ISBN O 680 2 8 3 7
9 02 - 6- 0.4k- B
The
pr ep r a t io of
this
Br itish St a nd r d w as entrusted b y theAu to mo b i l e
St an ar ds Polcy Commite e (AUE/ toRchnicalCommite e AUE/4, u po
which thefo l l o w i ng b d ies wer e r epr esent ed:
Agricultur al E ngine rs’Asso ci ati o n
Auto mo bi l e Asso ci ati o n
British In ust r ial Truck Asso c i ati o n
British Pres ure Ga ge Manufacturers’Asso c i ati o n
British Ru bbe r Manufacturers’Asso c i ati o n
Bus a d Co ac h Co unc i l
Dep r t m ent ofTra nsp rt
F r eig t Tr ansp rt Asso c i ati o n
Institute ofRoad Transp rt En ine r s ( nc)
Motor Cycle Ind ustry’s Asso c i ati o n ofGreat Br ita in Lt d
Motor In ust r y R esear ch As ocia tio
Nat io al Ty re Distr ib tors’ Asso c i ati o n
R etr ea d Ma nufa ct urer s’Asso c i ati o n
Road H au l ag e Asso ci ati o n Lt d
Societ y ofMoto r Ma nufa cturers a d Tr ad ers Lt d
Ame n dme n ts is ued si n ce publ i c ati on
Amd No Date Rxt a ff ct ed
BSI, 2 Pa kStr eet, L o nd o n W U2BS
BSI, Mord Wo d, Miton Keynes MK146L 3