GB/T 6326-2023 (GB/T6326-2023, GBT 6326-2023, GBT6326-2023) & related versions
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GB/T 6326-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.160.01
CCS G 41
Replacing GB/T 6326-2014
Tyre - Vocabulary
ISSUED ON: DECEMBER 28, 2023
IMPLEMENTED ON: JULY 01, 2024
Issued by: State Administration for Market Regulation.
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 General terms ... 6
4 Tyre classification ... 8
5 Tyre parts and components ... 16
6 Tyre tread pattern ... 21
7 Rims ... 23
8 Tyre size ... 25
9 Tyre performance and testing ... 29
10 Tyre marking ... 52
11 Tyre appearance defects ... 58
12 Tyre use ... 64
13 Tyre retreading and repair ... 72
Appendix A (Informative) Nominal diameter of rim ... 76
Appendix B (Informative) Correspondence between speed symbols and speed
capabilities ... 77
Appendix C (Informative) Correspondence between load index and load capacity ... 78
Index of English terms ... 79
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
"Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 6326-2014 "Tyre terms and definitions". Compared with
GB/T 6326-2014, in addition to structural adjustments and editorial changes, the main
technical changes are as follows:
a) CHANGE the definitions of the terms "special use tyre", "motorcycle tyre",
"moped tyre", "sidewall" (see 4.1.2, 4.3.9, 4.3.10, 5.3; 3.1.2, 3.3.9, 3.3.10, 4.3 of
2014 edition);
b) ADD the terms "traction tyre", "professional off-road tyre", "ice tyre", "rail transit
tyre", "straddle monorail tyre", "self-sealing tyre", "rim protector" (see 4.1.3,
4.1.4, 4.1.9, 4.3.13, 4.3.14, 4.4.33, 5.4);
c) DELETE the terms "slush pattern", "snow pattern", "new tyre size", "traction
resistance", "separation method measurement value", "machine method
measurement value", "separation method", "moment of inertia", "measurement
result correlation", "laboratory control tyre", "repeatability of measurement
results", "corrected tyre deviation", "correction value", "rated takeoff speed",
"rated landing speed", "rated takeoff load", "rated landing load", "incline test"
(see 5.10, 5.11, 7.2, 8.12.3, 8.12.7, 8.12.8, 8.12.11 ~ 8.12.13, 8.12.19 ~ 8.12.22,
8.18.11, 8.18.13, 8.18.15, 8.18. 17, 8.18.21 of the 2014 edition);
d) ADD the terms "vertical load", "ice grip index", "tractive force first harmonic",
"laser shearography testing", "robustness factor" and "impact bulge energy" (see
9.2.1, 9.8.31, 9.11.11, 9.16.4, 9.19.1, 9.19.2);
e) CHANGE the term "high-speed test" to "high speed performance test", "wet grip
coefficient" to "wet grip index", "snow grip coefficient" to "snow grip index",
"radial force" to "vertical force", "transverse force" to "lateral force", "lateral
displacement" to "lateral deflection", "lateral rigidity" to "lateral stiffness";
meanwhile CHANGE the definitions (see 9.7.1, 9.8.29, 9.8.30, 9.17.1, 9.17.5 ~
9.17.7; 8.6.1, 8.7.29, 8.7.30, 8.16.1, 8.16.5 ~ 8.16.7 of the 2014 edition);
f) CHANGE the definitions of the terms "takeoff speed", "landing speed", "takeoff
load", "landing load" (see 9.20.10 ~ 9.20.13; 8.18.10, 8.18.12, 8.18.14, 8.18.16
of the 2014 edition);
g) ADD the terms "bead ledge taper" and "load symbol" (see 9.20.22, 12.1.4);
h) CHANGE the definitions of the sign terms "F" and "POR" (see 10.3.5, 10.3.16;
9.3.17, 9.3.21 of the 2014 edition);
Tyre - Vocabulary
1 Scope
This document defines terminology used in the tyre industry, including general terms
and tyre classifications, tyre parts and components, tyre tread patterns, rims, tyre sizes,
tyre performance and testing, tyre marking, tyre appearance defects, tyre use, tyre
retreading and repair terms and their definitions.
This document applies to passenger car tyre, light truck tyre, truck and bus tyre, earth-
mover tyre, agricultural tyre, industrial tyre, motorcycle tyre, electric bicycle tyre, cycle
tyre, aircraft tyre.
2 Normative references
This document has no normative references.
3 General terms
3.1
Tyre
A circular elastic product mounted on a wheel or machine wheel.
3.2
New tyre
Tyre that are neither used nor retreaded.
3.3
Grown tyre
Tyre whose rim size has expanded due to use.
3.4
Pneumatic tyre
The tyre, whose inner cavity of the tyre needs to be filled with compressed gas or
liquid and can maintain the pressure.
Note: Divided into tube tyre and tubeless tyre.
3.5
Solid tyre
Cavity-less tyre that use materials with different properties to fill the tyre carcass.
3.6
Tubeless tyre
Pneumatic tyre that do not require an inner tube.
3.7
Tube tyre
A pneumatic tyre that requires an inner tube inside the tyre casing.
Note: Usually includes cover, inner tube, flap.
3.8
Cover
A tyre casing that can withstand various forces.
3.9
Inner tube
A circular elastic tube, which has a valve used to maintain the internal pressure of
the tyre.
3.10
Flap
An annular band that protects the inner tube contact patch from rim wear.
3.11
Rim
The part of the wheel that mounts and supports the tyre.
4 Tyre classification
4.1 Classification by use
4.1.1
Normal tyre
Tyre designed for general use.
4.1.2
Special use tyre
Tyre designed mainly for use under off-road conditions, which can be used on mixed
ordinary roads and off-roads, OR used under other special conditions.
Note: This type of tyre marking includes MPT (multi-purpose truck), ML (mining and
logging), ET (extra tread), POR (professional off-road), MT (mud-terrain), RT (rugged-
terrain), AT (all-terrain), etc.
4.1.3
Traction tyre
Tyre designed mainly for vehicle drive wheels, to maximize the transmission of
vehicle power.
4.1.4
Professional off-road tyre
Tyre designed primarily for use in harsh off-road conditions.
Note: It is a kind of special purpose tyre.
4.1.5
Mud and snow tyre
The tyre, whose tyre pattern, tread compound, tyre structure are specially designed
to provide better driving performance than ordinary tyre when driving in snowy,
muddy or sandy areas.
4.1.6
Temporary-use spare tyre
The tyres, other than those installed on vehicles and used under specified driving
conditions, are only used temporarily under limited driving conditions.
4.1.7
T-type temporary use spare tyre
The tyre, whose inflation pressure is higher than that of standard and reinforced tyre,
is for temporary use only.
4.1.8
Snow tyre
Tyre which has specially designed tyre patterns, tread compounds or tyre structures
that perform better than ordinary tyre, in terms of vehicle starting, handling and
braking performance on icy and snowy roads or in cold conditions.
4.1.9
Ice tyre
Tyre which has specially designed tyre patterns, tread compounds or tyre structures
that perform better than ordinary tyre, in terms of vehicle starting, handling and
braking performance on icy road conditions.
Note: It is a kind of snow tyre.
4.1.10
Run flat tyre
Pneumatic tyres that are designed to travel under normal inflation conditions and
can still travel a certain distance at a certain speed, under a lack of pressure condition.
4.1.11
Self-supporting run flat tyre
It is a pneumatic tyre, which is designed to be driven in a normal inflated state and
can still travel a certain distance at a certain speed without any other accessories in
a deflated state.
4.1.12
Internal support tyre
A tyre with supports in the inner cavity of the tyre.
4.2 Classification by structure
4.2.1
Structure type
Technical characteristics of tyre carcass.
Note: Including diagonal structure, bias-belted structure, radial structure, etc.
4.2.2
Diagonal tyre; bias-ply tyre
A pneumatic tyre in which the adjacent cords of the carcass ply and breaker intersect
and are aligned at less than 90° with the tread centerline.
4.2.3
Bias-belted tyre; bias tyre
A pneumatic tyre in which the belt is composed of two or more layers of cord
material that is basically inextensible, tightening the carcass ply in a bias structure.
4.2.4
Radial tyre
A pneumatic tyre in which the carcass ply cords are arranged at or close to 90° to
the tread centerline and the belt is used to tighten the carcass.
4.3 Classification by matching vehicles or machinery or equipment
4.3.1
Passenger car tyre
Tyre designed primarily for use on passenger cars.
4.3.2
Truck and bus tyre
Tyre designed primarily for use on commercial vehicles and their trailers.
4.3.3
Light truck tyre
Tyre designed primarily for use on microcars or light commercial vehicles.
Note: It is a type of truck and bus tyre.
4.3.4
Earth-mover tyre
Tyre designed for use on wheeled construction machinery and construction vehicles.
Note: Construction machinery and vehicles are usually used for short-distance, low-speed,
engineering operations on non-paved roads.
4.3.5
Industrial tyre
Tyre designed for use on industrial vehicles.
Note: Mainly divided into solid tyre and pneumatic tyre. Industrial vehicles are usually
short-distance, low-speed, intermittent or periodic operation vehicles.
4.3.6
Agricultural tyre
Tyre designed for use on tractors, agricultural machinery, agricultural vehicles.
Note: Agricultural machinery and vehicles are usually used for low-speed operation
machinery in various fields, such as farmland and sugarcane fields or for short-distance low-
speed transportation operations in agricultural operating areas.
4.3.7
Logging tyre
Tyre designed for use on forestry machinery and forestry vehicles.
Note: Forestry machinery and vehicles are usually used for low-speed operations in various
mountainous areas, such as forest areas and forest farms. It is a type of agricultural tyre.
4.3.8
Aircraft tyre
Pneumatic tyre designed for use on aircraft.
4.3.9
Motorcycle tyre
Tyre designed for use on motorcycles.
4.3.10
Moped tyre
Tyre designed for use on mopeds.
4.3.11
Cycle tyre
Tyre designed for non-motor vehicles such as trolleys, bicycles, tricycles.
4.3.12
Electric bicycle tyre
Tyre designed for use on e-bikes.
4.3.13
Rail transit tyre
Tyre designed for use on rail transit.
4.3.14
Straddle monorail tyre
Tyres designed for straddle-type monorail vehicles, which are a rail transit tyre.
4.4 Other tyres
4.4.1
Cast tyre
Tyre manufactured using a casting process.
4.4.2
Foam filled tyre
A tyre in which elastic foam material is used instead of compressed gas in the inner
cavity of the tyre.
4.4.3
Removable tread tyre
Pneumatic tyre with replaceable tread.
4.4.4
Press-on solid tyre
A solid tyre with a steel ring that is press-fitted to the rim using an interference fit.
4.4.5
Cured-on solid tyre
Solid tyre without steel rims vulcanized directly on the rim.
4.4.6
Solid tyre for pneumatic tyre rim
A solid tyre mounted on a pneumatic tyre rim.
4.4.7
Cylindrical base solid tyre
A solid tyre with a cylindrical base and fastened to the rim.
4.4.8
Conical base solid tyre
A solid tyre with a conical base and mounted on a split rim.
4.4.9
Anti-static solid tyre
A solid tyre with conductive properties, that prevents the accumulation of static
charges.
4.4.10
Conductive solid tyre
Solid tyre with resistance no greater than 2.5 × 104 Ω and capable of conducting
electricity.
4.4.11
Oil-resistance solid tyre
......
GB/T 6326-2014
GB
ICS 83.160.01
G 41
National Standard
of the People’s Republic of China
Replacing GB/T 6326-2005
Tyre Terms and Definitions
(ISO 4223-1.2002, Definitions of some terms used in tyre industry - Part 1.
Pneumatic tyres, NEQ)
ISSUED ON. DECEMBER 5, 2014
IMPLEMENTED ON. OCTOBER 1, 2015
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration Committee.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 General terms ... 5
3 Category of tyre ... 6
4 Components of tyre (See Figure 1 and Figure 2) ... 14
5 Tread pattern (See Figure 3) ... 19
6 Rim ... 22
7 Tyre dimension (see Figure 4) ... 23
8 Tyre performance and the test ... 27
9 Tyre marking ... 50
10 Appearance defects of tyres ... 55
11 Tyre service ... 61
12 Tyres retread and repair ... 68
Annex A ... 72
Annex B ... 74
Annex C ... 75
Index (Chinese Index) ... 77
Index (English Index) ... 83
Foreword
This Standard was drafted according to the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 6326-2005 “Tyre terms and definitions”. Compared with
GB/T 6326-2005, the major technical differences in this Standard are as follows.
— ADD terms of snow tyre, run flat tyre, and self-supporting run flat tyre (see 3.1.6,
3.1.7, and 3.1.8);
— REVISE the expression of parts of terms (see 3.3.1 and 3.3.2);
— ADD terms of rim, electric bicycle tyre, and crotchet type tyre (see 2.11, 3.3.12,
and 3.4.32);
— DELETE terms of bicycle tyre (see 4.3.12 of 2005 Edition);
— ADD relevant terms of wet grip index and snow grip index (see 8.7.29 and
8.7.30);
— ADD terms of radial force of first harmonic-RFV1H and lateral force of first
harmonic-LFV1H (see 8.10.9 and 8.10.10);
— ADD relevant terms of rolling resistance (see 8.12);
— ADD relevant terms of longitudinal and lateral stiffness and electrical resistance
(see 8.16 and 8.17);
— ADD relevant terms of additional size designation (see 9.3);
— ADD terms of tyre strength indicator (see 11.2.6);
— ADD terms of precured retread and mold retread (see 12.3 and 12.4);
— ADJUST the arrangement of chapters and articles.
This Standard uses redrafting method by referencing ISO 4223-1.2002 "Definitions of
Some Terms Used in the Tyre Industry - Part 1. Pneumatic Tyres", however, it is not
equivalent to ISO 4223-1.2002.
The Standard was proposed by the China Petroleum and Chemical Industry
Association.
The Standard shall be under the jurisdiction of National Technical Committee 19 on
Tyres and Rims of Standardization Administration of China (SAC/TC 19).
Drafting organizations of this Standard. Guangzhou Southern China Rubber Tyre Co.,
Ltd., Double Star Group Co., Ltd., Triangle Tyre Co., Ltd., Shandong Linglong Tyre
Co., Ltd., Chaoyang Long March Tyre Co., Ltd., Sailun Group Co., Ltd., Aeolus Tyre
Co., Ltd., Zhongce Rubber Group Co., Ltd., Xiamen Zhengxin Rubber Industry Co.,
Ltd., Dalian Goodyear Tyre Co., Ltd., Beijing Research & Design Institute of Rubber
Industry, Michelin (China) Investment Co., Ltd., and Bridgestone (China) Investment
Co., Ltd.
Main drafters of this Standard. Zhou Qiong, Luo Miaoqing, Li Yong, Meng Ying, Chen
Shaomei, Wang Xiaoguang, Xie Libo, Liu Wenmin, Lv Jian, Sun Quanxi, Yin Qingye,
Wang Kexian, Lu Yi, Fu Guangping, Mou Shouyong, Xu Lihong, and Li Zhengang.
The previous editions replaced by this Standard are as follows.
— GB/T 6326-1986, GB/T 6326-1994, and GB/T 6326-2005.
Tyre Terms and Definitions
1 Scope
This Standard specifies the terms and definitions for general use, category of tyres,
components of tyres, tread pattern, rims, dimension of tyres, performance and test of
tyre, tyre marking, appearance defects, application, retread and repair.
This Standard is applicable to passenger car tyre, light truck tyre, truck tyre,
earth-mover tyre, agricultural tyre, industrial tyre, motorcycle tyre, cycle tyre and
aircraft tire.
2 General terms
2.1
Tyre
A ring-shaped covering that fits around a wheel's rim for driving the automobiles,
engineering machinery, agricultural machinery, industrial vehicle, motorcycle and
cycle vehicle and helping the aircrafts take off /land.
2.2
New tyre
Tyre that has been neither used nor subjected to a retreading operation.
2.3
Grown tyre
Tyre that has undergone expansion due to use in service.
2.4
Pneumatic tyre
Tyre that needs the compressed gas or liquid in the chamber and is capable of
keeping the pressure, including tube-tyre and tubeless tyre.
2.5
Solid tyre
Aircraft tyre
Pneumatic tyre designed for aircraft.
3.3.9
Motorcycle tyre
Tyre designed for two-wheeled motor vehicle or three-wheel motor vehicle with
complete vehicle mass less than or equal to 400kg.
3.3.10
Moped tyre
Tyre designed for two-wheeled or three-wheel motor vehicle with speed per hour less
than or equal to at 50 km/h and total displacement less than or equal to 50mL.
3.3.11
Cycle tyre
Tyre designed for non-motor vehicle, such as handcart, bicycle and tricycle.
3.3.12
Electric bicycle tyre
Tyre designed for the electric bicycle.
3.4 Other tyres
3.4.1
Cast tyre
Tyre made by the casting process.
3.4.2
Foam filled tyre
Tyre that has the elastic foam materials replace compressed gas in the inner cavity of
cover.
3.4.3
Removable tread tyre
Pneumatic tyre with bead core made of hard material and applied on the rim for the
straight side and hooked bead cycle vehicle.
3.4.28
Straight side of bicycle tyre
Pneumatic tyre with groove outside the bead and applied on the rim for the straight
side bicycle.
3.4.29
Hooked bead of bicycle tyre
Pneumatic tyre with hooked bead and applied on the rim for the hooked bead bicycle.
3.4.30
Compatible type of hooked bead or straight side bicycle tyre
Pneumatic tyre fixed on the rim of both the straight side bicycle and hooked bead
bicycle.
3.4.31
Tubular tyre for bicycle
Pneumatic tyre with the inner and outer tyre as an integrity and tubular carcass,
applicable to the rim of the athletic type bicycle.
3.4.32
Crotchet type tyre
Tyre of which the bead core is made of steel wire or other high-strength materials, and
the contour shape of bead matches the crotchet type (CT) rim.
4 Components of tyre (See Figure 1 and Figure 2)
4.16
Apex
Rubber strip, in the triangular section, transitional from upper bead ring to the
sidewall.
4.17
Bead ring
Stiffening ring coiled by coppered steel wire, important to fix the tyre on the rim.
4.18
Chafer
Rubber strip affixed outside the bead.
4.19
Decorative rib
Decorative lines molded on the sidewall.
4.20
Fitting line
Single or multiple ring chine molded at the sidewall and jointed with the bead, served
as a mark line to indicate that the tyre is assembled on the rim correctly.
4.21
Kerbing rib
Bulged circular chine molded on the sidewall, used to protect the sidewall against the
abrasion.
4.22
Chine
Bulged circumferential circular chine, set at the nose aircraft tyre shoulder, used to
make the water on tread back to prevent water from being into the aircrafts engine.
Pattern suitable for traveling on non-paved road.
5.5
Highway tread pattern
Pattern suitable for traveling on paved road.
5.6
On/off road tread pattern
Special pattern suitable for multiple occasions, such as highway pattern/off-road
pattern and longitudinal pattern/transversal pattern.
5.7
Pattern for traction
Pattern, having deeper groove and better adhesion performance than the normal
pattern.
5.8
Directional tread pattern
Pattern required for travel direction.
5.9
Asymmetric pattern
Pattern that the entire tread pattern shape is not symmetrical to the centerline of the
tread, or the pattern shape of each pitch is not symmetrical to the centerline of the
pitch.
5.10
Mud and snow pattern
Pattern suited for muddy and snow road.
5.11
Snow pattern
Pattern suited for ice and snow road.
5.12
Pattern block
The projection, separately independent or partially independent, spaced among the
tread patterns.
5.13
Pattern rib
Consecutive strip projection in the tread pattern.
5.14
Groove
Groove separating the projection of tread pattern.
5.15
Pattern sipe
Gap on tread pattern block...
......
GB/T 6326-2005 (replaced by GB/T 6326-2014, from Sep 2015)
GB
National Standard
of the People’s Republic of China
ICS 83.160.10
G41
Replacing GB/T 6326-1994
Tyre Terms and Definitions
(ISO 4223-1. 2002, Definitions of some terms used in tyre industry –
Part 1. Pneumatic tyres, NEQ)
(Replaced by GB/T 6326-2014, from Sep 2015)
ISSUED ON. SEPTEMBER 15, 2005
IMPLEMENTED ON. MAY 01, 2006
Jointly Issued by. General Administration of Quality Supervision, Inspection
and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
1 Scope ... 4
2 Normative References ... 4
3 General Terms ... 4
4 Category of tyre ... 5
5 Components of Tyre ... 10
6 Tread Pattern ... 13
7 Rim ... 15
8 Tyre Dimension ... 15
9 Tyre Performance and the Test ... 18
10 Tyre Marking ... 30
11 Appearance Defects of Tyres ... 32
12 Tyre Service ... 36
13 Tyres Retread and Repair ... 40
Annex A (Informative) Nominal Rim Diameter... 43
Annex B (Informative) Corresponding Relation between Speed Symbols and Speeds .. 44
Annex C (Informative) Corresponding Relation between Load Indices and Loads ... 45
Chinese Index ... 47
English Index ... 58
Foreword
This Standard is not equivalent to ISO 4223-1.2002 "Definitions of Some Terms Used in the
Tyre Industry - Part 1. Pneumatic Tyres" (English version).
This Standard replaces GB/T 6326-1994 "Tyre Terms".
Compared with GB/T 6326-1994, the major technical differences in this Standard are as
follows.
— Standard name is modified;
— The order of the clauses number is adjusted;
— Technological term (3.7, 1994 edition) is deleted;
— The dimension and parameters terms at tyre loads are included into the tyre
performance and the test (3.6of 1994 edition; Chapter 9 of this edition);
— Tyre marking terms are added (Chapter 10 of this edition);
— Many terms for the performance of the test of the tyre are increased or deleted and
some other terms are modified (3.11 of 1994 edition; Chapter 9 of this edition).
Annex A, Annex B and Annex C of this Standard are informative.
This Standard was proposed by the China Petroleum and Chemical Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee 19 on Tyres
and Rims of Standardization Administration of China.
The National Technical Committee 19 on Tyres and Rims of Standardization Administration
of China is entrusted for the interpretation of this Standard.
Drafting organizations of this Standard. Beijing Research & Design Institute of Rubber
Industry, Shuguang Rubber Industry Research & Design Institute, Hualin Tyre Co., Ltd.,
Yantai C.S.I. Rubber Co., Ltd., and Xiamen Zhengxin Rubber Industry Co., Ltd.
Chief drafting staffs of this Standard. Xia Songmao, Wu Jiangtao, Sheng Baoxin, Wang
Yanlin, Liu Yangguang, and Huang Huiwen.
Historical editions replaced by this Standard are as follows.
— GB 6326-1986, and GB/T 6326-1994.
Tyre Terms and Definitions
1 Scope
This Standard specifies the terms and definitions for general use, category of tyres,
components of tyres, tread pattern, rims, dimension of tyres, performance and test of tyre, tyre
marking, appearance defects, application, retread and repair.
This Standard is applicable to passenger car tyre, light truck tyre, truck tyre, earth-mover tyre,
agricultural tyre, industrial tyre, motorcycle tyre, cycle tyre and aircraft tire.
2 Normative References
The following standards contain provisions which, through reference in this Standard,
constitute provisions of this Standard. For dated references, subsequent amendments
(excluding corrections) or revisions of these publications do not apply. However, all parties
coming to an agreement according to this Standard are encouraged to study whether the latest
edition of the normative document applies. For undated references, the latest edition of the
normative document applies.
GB/T 12549 "Automotive Controllability and Stability - Terms and Definitions"
3 General Terms
3.1
Tyre
A ring-shaped covering that fits around a wheel's rim for driving the automobiles,
engineering machinery, agricultural machinery, industrial vehicle, motorcycle and cycle
vehicle and helping the aircrafts take off /land.
3.2
New tyre
Tyre that has been neither used nor subjected to a retreading operation.
3.3
Grown tyre
Tyre that has undergone expansion due to use in service.
3.4
Pneumatic tyre
Tyre that needs the compressed gas or liquid in the chamber and is capable of keeping
the pressure, including tube-tyre and tubeless tyre.
3.5
Solid tyre
Tyre that has the materials of different performances filled in the carcass and is not
equipped with inner cavity.
3.6
Tube-tyre
Pneumatic tyre that needs the inner tube within the inner cavity of tyre cover, typically
including cover, inner tube and flap.
3.7
Tubeless tyre
Pneumatic tyre that is not assembled with the inner tube.
3.8
Cover
Enclosure body of tyre capable of bearing various acting forces.
3.9
Inner tube
Ring-shaped elastic tube that is used to keep the inner pressure and accompanied with
inflating valve.
3.10
Flap
Endless belt that protect the inner tube rim part against the wear by the rim.
4 Category of tyre
4.1 Based on use
4.1.1
Normal tyre
Tyre for normal use.
4.1.2
Special tyre
Tyre intended for special use.
e.g. mixed use, both on or off road or for other strict speed limit.
4.1.3
Mud and snow tyre
Tyre whose tread pattern and tread structure are primarily designed to achieve in
non-freezing or melting snow or muddy conditions a performance better than that of a normal
tyre.
4.1.4
Temporary-use spare tyre
Tyre that has the support in the inner cavity of cover.
4.4.4
Removable tread tyre
Pneumatic tyre with replaceable tread.
4.4.5
Pressed-on solid tyre
Solid tyre that is pressed and fixed on the rim by the interference fit and accompanied
with the steel ring.
4.4.6
Cured-on solid tyre
Solid tyre directly vulcanized on the rim and not equipped with the steel ring.
4.4.7
Solid tyre for pneumatic tyre rim
Solid tyre fabricated on the pneumatic tyres rims.
4.4.8
Cylindrical base solid tyre
Solid tyre with cylindrical base and fastened on the rim.
4.4.9
Conical base solid tyre
Solid tyre with conical base and fastened on the divided rim.
4.4.10
Anti-static solid tyre
Conductive solid tyre, capable of preventing the accumulation of static charge.
4.4.11
Conductive solid tyre
Conductive solid tyre having resistance ≤250,000 Ω.
4.4.12
Oil-resistance solid tyre
Solid tyre resistant to the oil corrosion.
4.4.13
High-load solid tyre
Elastomeric solid tyre having the load capacity higher than the solid rubber tyre of the
same specification.
4.4.14
Solid elastomer tyred wheel assembles for track laying vehicles
Support wheel of track laying vehicles with the rubber layer hung the web.
4.4.15
Nose aircraft tyre
Tyre used on nose gear of aircraft.
4.4.16
Main aircraft tyre
Tyre used on main gear of aircraft.
4.4.17
9.3 Strength
9.3.1
Breaking energy
Energy required for the pressure head breaking through the crown.
9.3.2
Burst pressure
Pressure of tyre in case of bursting under the hydraulic action.
9.3.3
Safety factor of strength
Ratio of burst pressure measured in the hydraulic pressure test to the inflation pressure
corresponding to tyre load capacity.
9.4 Bead unseating resistance
9.4.1
Bead unseating
Separation of tubeless tyre bead from the rim bead seat.
9.4.2
Bead unseating resistance
Force required for separating the tubeless tyre bead from the rim bead seat.
9.4.3
Air-tightness
Air permeability of inner liner and inner tube of cover.
9.5 Endurance
9.5.1
Endurance test(drum method)
Test carried out on the drum tester to assess tyre resistance to fatigue and effect of heat at
the test condition as required.
9.5.2
Mileage test
The test in which the tyre is mounted on the user's vehicle and used in the actual use, for
assessing the service life-b...
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| Standard ID | GB/T 6326-2023 (GB/T6326-2023) | | Description (Translated English) | Tyre -- Vocabulary | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | CCSG41 | | Classification of International Standard | 83.160.01 | | Word Count Estimation | 66,640 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-07-01 | | Older Standard (superseded by this standard) | GB/T 6326-2014 | | Drafting Organization | Wanli Tire Co., Ltd., Double Star Group Co., Ltd., Triangle Tire Co., Ltd., Shandong Linglong Tire Co., Ltd., Zhongce Rubber Group Co., Ltd., Sailun Group Co., Ltd., Fengshen Tire Co., Ltd., ��Beijing�� Rubber Industry Research and Design Institute Co., Ltd., Guangzhou Rubber Industrial Products Research Institute Co., Ltd., China National Chemical Corporation Shuguang Rubber Industry Research and Design Institute Co., Ltd., Pulin Chengshan (Shandong) Tire Co., Ltd., Xiamen Zhengxin Rubber Industry Co., Ltd., Sichuan Tire Rubber (Group) Co., Ltd., Qingdao Senqilin Tire Co., Ltd., Guizhou Tire Co., Ltd., Shandong Jinyu Tire Co., Ltd., Shandong Fengyuan Tire Manufacturing Co., Ltd., Tongli Tire Co., Ltd., Shandong Changfeng Tire Co., Ltd., Haian | | Administrative Organization | National Tire and Rim Standardization Technical Committee (SAC/TC 19) | | Proposing organization | China Petroleum and Chemical Industry Federation | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB/T 6326-2014 (GB/T6326-2014) | | Description (Translated English) | Tyre terms and definitions | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G41 | | Classification of International Standard | 83.160.01 | | Word Count Estimation | 64,688 | | Date of Issue | 2014/12/5 | | Date of Implementation | 2015/10/1 | | Older Standard (superseded by this standard) | GB/T 6326-2005 | | Adopted Standard | ISO 4223-1-2002, NEQ | | Drafting Organization | Guangzhou City in South China Rubber Tire Co., Ltd. | | Administrative Organization | National tire rim Standardization Technical Committee | | Regulation (derived from) | Announcement of Newly Approved National Standards 2014 No. 27 | | Proposing organization | China Petroleum and Chemical Industry Federation | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard specifies general terms, tire classified site tire components, tire tread, rim, tire size, tire performance and testing, tire marks, tire appearance defects, tires, tire retreading and repair and tire industry terminology its definition. Thi | | Standard ID | GB/T 6326-2005 (GB/T6326-2005) | | Description (Translated English) | Tyre terms and definitions | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G41 | | Classification of International Standard | 83.160.10 | | Word Count Estimation | 57,536 | | Date of Issue | 2005-09-15 | | Date of Implementation | 2006-05-01 | | Older Standard (superseded by this standard) | GB/T 6326-1994 | | Quoted Standard | GB/T 12549 | | Adopted Standard | ISO 4223-1-2002; NEQ | | Drafting Organization | Beijing Research and Design Institute of Rubber Industry | | Administrative Organization | National Standardization Technical Committee tire rim | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 1, 2006 (No. 88 overall) | | Proposing organization | China Petroleum and Chemical Industry Association | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee | | Summary | This standard specifies: tire industry in general terms, the tire classification, tire component parts, tire tread, rim, tire size, tire performance and testing, tire marks, tire appearance defects, tires, tire retreading and repair Terminology their definitions. This standard applies to: passenger car tires, light truck tires, truck tires, OTR tires, agricultural tires, industrial vehicle tires, motorcycle tires, car tires, aircraft tires. |
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