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GB/T 2977-2008 English PDF (GBT2977-2008)

GB/T 2977-2008 English PDF (GBT2977-2008)

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GB/T 2977-2008: Size designation, dimensions, inflation pressure and load capacity for truck tyres

This Standard specifies the truck tyre terms and definitions; expression method of size designation; size designation, dimensions, inflation pressure and load capacity. This Standard is applicable to the inflated tyres of truck, passenger car, and trailer.
GB/T 2977-2008
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 83.160.10
G 41
Replacing GB/T 2977-1997, GB/T 19047-2003
Size designation, dimensions, inflation pressure
and load capacity for truck tyres
ISSUED ON. JUNE 04, 2008
IMPLEMENTED ON. DECEMBER 01, 2008
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the PEOPLE Republic of China;
Standardization Administration of the PEOPLE Republic of
China.
Table of Contents
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Expression method of size designation ... 5
5 Size designation, dimension, inflation pressure and load capacity ... 7 Appendix A (Normative) Corresponding Relation between Load Index and
Load Capacity ... 44
Appendix B (Normative) Corresponding Relation between Speed Symbol
and Maximum Travel Speed ... 45
Foreword
This Standard is not equivalent to ?€?US Tire and Rim Association Yearbook ?€? 2007 (TRA- 2007)?€? (English Edition).
This Standard replaces GB/T 2977-1997 ?€?Series of Truck Tyres?€? and GB/T 19407-2003 ?€?Agricultural Tractor ?€? Maximum Actuating Forces Required to Operate Controls?€?. There is no major technical difference between this Standard and GB/T 19047-2003. The main differences from the previous standard GB/T 2977-1997 are as follows. ?€? Add load index (refer to Table 1 ~ Table 21);
?€? For some tyre sizes, add higher ply rating tyres based on GB/T 2977-1997 (some tyre sizes in Table 1 ~ 4, Table 6, 12, 15 and 16).
?€? Add some tyre sizes (refer to Table 1 ~ 21);
?€? Delete the sizes of nominal diagonal tyre (Table 9 and 20 of 1997 edition) and some sizes of diagonal tyre with normal section (Table 3, 5, 12, and 14 of 1997 edition); add the sizes of light truck radial tyre (Table 10 of this Standard), the sizes of ST nominal tyre specially used in road trailer (Table 11 of this Standard), the sizes of road-base truck diagonal tyre (Table 14 of this Standard), and the sizes of recreational vehicle tyre (Table 21 of this Standard);
?€? Delete the table ?€?the corresponding relation between inflation pressure and load capacity?€? (Table 2, 4, 6, 8, 11, 13, 15, 17,19, 22, 24, 26, and 28 of 1997 edition); ?€? ?€?Measurement tyre?€? replaces ?€?standard tyre?€? (Table 1, 3, 5, 7, 9, 10, 12, 14, 16, 18, 20, 21, 23, 24, 25 and 27 of edition 1997; Table 1 to Table 21 of this Standard). ?€? Adjust the section width and external diametrical difference of tyre after air inflation (Table 1 and 5 of 1997 edition; Table 1 ~ Table 21 of this Standard);
?€? Adjust the load variation rates of tyre under different speeds (Table 31 of 1997 edition; Table 22 of this Standard).
Appendix A and B of this Standard are normative.
This Standard was proposed by China Petroleum and Chemical Industry Association. This Standard shall be under jurisdiction of National Technical Committee on Tyres and Rims of Standardization Administration of China.
The responsible drafting organizations of this Standard. Aeolus Tires INC, Guizhou Tyre Co., Ltd. Double Coin Holdings Ltd., Hangzhou Zhongce Rubber Co., Ltd., Beijing Research and Design Institute of Rubber Industry, Shandong Linglong Tire Co., Ltd., Triangle Tyre Co., Ltd., Git Tire INC. (Shandong), Xiamen Cheng Shin Enterprise Co., Ltd., Beijing Capital Tyre Co., Ltd., MICHELIN Group (Shanghai), and Sailun Co., Ltd. Main drafters of this Standard. SHANG Yongning, SHEN Yude, HUANG Gege, SU Hongbin, CHEN Guohua, WANG Kexian, LIU Lianbo, QIAO Lingling, SHI Min, SUN Quanxi, ZHAO Dongmei, LU Yi, ZHANG Xiaojun, and AN Dengfeng.
The historical editions replaced by this Standard are.
?€? GB/T 2977-1982, GB/T 2977-1989, GB/T 2977-1997;
?€? GB/T 19047-2003.
Size designation, Dimensions, Inflation Pressure and
Load Capacity for Truck Tyres
1 Scope
This Standard specifies the truck tyre?€?s terms and definitions; expression method of size designation; size designation, dimensions, inflation pressure and load capacity. This Standard is applicable to the inflated tyres of truck, passenger car, and trailer. 2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition citied applies. For undated references, the latest edition of the referenced documents (including any amendments) applies. GB/T 6326 Tyre Terms and Definitions (GB/T 6326-2005, ISO 4223-1.2002,
Definitions of some terms used in tyre industry - Part 1. Pneumatic tyres, NEQ) 3 Terms and definitions
For the purpose of this Standard, the terms and definitions given in GB/T 6326 apply. 4 Expression method of size designation
4.1 Mini or light truck tyre
Example 1.
Marking of size designation Instructions
4.50 - 12 ULT 4PR 67/65 G
7.50 R 16 LT 8PR 112/107 Q
31??10.50 R 15 LT 6PR 109 Q
Speed symbol
Load index (single tyre/double tyres)
Ply rating
LT - Symbol for light truck tyre;
ULT - Symbol for mini truck tyre;
Nominal diameter of rim (in)
Structure designation (?€?-?€? for the structure designation of
diagonal tyre; ?€?R?€? for the structure designation of radial tyre)
Nominal section width (in)
Nominal external diameter (in)
Table 2 Light Truck Normal Section Diagonal Tyre (5?? Rim)
Tyre size Ply rating
Load index
Measu
rement
rim
Design size for new
tyre/mm
Maximum dimension of
tyre /mm Static
load
radius
/mm
Load capacity
/kg Inflation
pressure
/kPa
Minimum
distance
between double
tyres /mm
Rim allowed
to be used
Type of
inflating
valve Single tyre
Doubl
e tyre
Secti
on
width
External
diameter Total
width
External
diameter Singl
e tyre
Double
tyre Road
type
Tractio
n type
Road
type
Tractio
n type
5.50-13LT 6 82 78 4.00B 160 620 ?€? 173 645 ?€? 295 475 425 320 186 4.50B, 4J, 4??J CF01 5.50-13LT 8 88 84 4.00B 160 620 ?€? 173 645 ?€? 295 560 500 420 186 4.00B, 4.50B, 4J, 4??J CF01 5.50-14 LT 6 84 79 4J 160 645 ?€? 173 671 ?€? 307 500 437 320 186 4??J, 5J CF01 5.50-14 LT 8 90 85 4J 160 645 ?€? 173 671 ?€? 307 600 515 420 186 4??J, 5J CF01 6.00-13 LT 6 88 83 4.50B 170 655 ?€? 184 681 ?€? 312 560 487 320 197 4.00B, 5.00B, 4J, 4??J, 5J CF01 6.00-13 LT 8 93 89 4.50B 170 655 ?€? 184 681 ?€? 312 650 580 420 197 4.00B, 5.00B, 4J, 4??J, 5J CF01 6.00-14 LT 6 89 85 4??J 170 680 691 184 707 718 324 580 515 320 197 4J, 5J CF01 6.00-14 LT 8 95 90 4??J 170 680 691 184 707 718 324 690 600 420 197 4J, 5J CF01 6.00 -14 LT 10 100 96 4??J 170 680 691 184 707 718 324 800 710 530 197 4J, 5J CF01 6.00-15 LT 6 91 87 4.50E 170 705 717 184 733 744 336 615 545 320 197 4??J CJ01 6.00-15 LT 8 97 92 4.50E 170 705 717 184 733 744 336 730 630 420 197 4??J CJ01 6.00-15 LT 10 101 97 4.50E 170 705 717 184 733 744 336 825 730 530 197 4??J CJ01 6.00-16LT 6 92 88 4.50E 170 730 743 184 759 771 348 630 560 320 197 4.00E CJ01 6.00-16LT 8 98 94 4.50E 170 730 743 184 759 771 348 750 670 420 197 4.00E CJ01 6.00-16LT 10 102 98 4.50E 170 730 743 184 759 771 348 850 750 530 197 4.00E CJ01 6.50-14LT 6 94 89 4??J 180 705 717 194 733 746 336 670 580 320 209 5J CF01 6.50-14LT 8 99 95 4??J 180 705 717 194 733 746 336 775 690 420 209 5J CF01 Table 2 (Continued )
Tyre size Ply rating
Load index
Measu
rement
rim
Design size for new
tyre/mm
Maximum dimension of
tyre /mm Static
load
radius
/mm
Load capacity
/kg Inflation
pressure
/kPa
Minimum
distance
between double
tyres /mm
Rim allowed to
be used
Type of
inflating
valve Single tyre
Doubl
e tyre
Secti
on
width
External
diameter Total
width
External
diameter Singl
e tyre
Double
tyre Road
type
Tractio
n type
Road
type
Tractio
n type
7.50-16LT 6 106 101 6.00G 215 805 816 232 837 848 383 950 825 320 249 5.50F DG04C 7.50-16LT 8 112 107 6.00G 215 805 816 232 837 848 383 1120 975 420 249 5.50F DG04C 7.50-16LT 10 116 112 6.00G 215 805 816 232 837 848 383 1250 1120 530 249 5.50F DG04C 7.50-16LT 12 120 116 6.00G 215 805 816 232 837 848 383 1400 1250 630 249 5.50F DG04C 7.50-16LT 14 122 118 6.00G 215 805 816 232 837 848 383 1500 1320 730 249 5.50F DG04C 8.25-16LT 6 110 105 6.50H 235 855 867 253 889 901 407 1060 925 280 273 6.00G, 6.5 DG05C 8.25-16LT 8 115 110 6.50H 235 855 867 253 889 901 407 1215 1060 350 273 6.00G, 6.5 DG05C 8.25-16LT 10 119 114 6.50H 235 855 867 253 889 901 407 1360 1180 420 273 6.00G, 6.5 DG05C 8.25-16LT 12 123 119 6.50H 235 855 867 253 889 901 407 1550 1360 530 273 6.00G, 6.5 DG05C 8.25-16LT 14 126 122 6.50H 235 855 867 253 889 901 407 1700 1500 630 273 6.00G, 6.5 DG05C 8.25-16LT 16 128 124 6.50H 235 855 867 253 889 901 407 1800 1600 730 273 6.00G, 6.5 DG05C 9.00-16LT 6 115 110 6.50H 255 890 902 275 926 938 424 1215 1060 280 296 6.00G, 6.5 DG05C 9.00-16LT 8 120 115 6.50H 255 890 902 275 926 938 424 1400 1215 350 296 6.00G, 6.5 DG05C 9.00-16LT 10 123 119 6.50H 255 890 902 275 926 938 424 1550 1360 420 296 6.00G, 6.5 DG05C 9.00-16LT 12 127 123 6.50H 255 890 902 275 926 938 424 1750 1550 530 296 6.00G, 6.5 DG05C 9.00-16LT 14 131 126 6.50H 255 890 902 275 926 938 424 1950 1700 630 296 6.00G, 6.5 DG05C 9.00-16LT 16 134 129 6.50H 255 890 902 275 926 938 424 2120 1850 730 296 6.00G, 6.5 DG05C 215R16LT 6 109 107 6J 216 750 756 229 764 770 349 1030 975 350 251 5??J, 6??J DG04C 215R16LT 8 113 111 6J 216 750 756 229 764 770 349 1150 1090 450 251 5??J, 6??J DG04C Table 6 Light Truck Metric...

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