GB/T Translated English of Chinese Standard: GB/T NATIONAL STANDARD OF THE

Transcription

1 Translated English of Chinese Standard: GB/T GB NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA ICS G 41 GB/T Replacing GB/T , GB/T Size designation, dimensions, inflation pressure and load capacity for truck tyres 载重汽车轮胎规格, 尺寸, 气压与负荷 Issued on: June 04, 2008 Implemented on: December 01, 2008 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. Page 1 of 45

2 Table of Contents 1 Scope Normative references Terms and definitions Expression method of size designation Size designation, dimension, inflation pressure and load capacity... 7 Appendix A (Normative) Corresponding Relation between Load Index and Load Capacity Appendix B (Normative) Corresponding Relation between Speed Symbol and Maximum Travel Speed Page 2 of 45

3 Foreword This Standard is not equivalent to US Tire and Rim Association Yearbook 2007 (TRA- 2007) (English Edition). This Standard replaces GB/T Series of Truck Tyres and GB/T Agricultural Tractor Maximum Actuating Forces Required to Operate Controls. There is no major technical difference between this Standard and GB/T The main differences from the previous standard GB/T 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 (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 & Design Institute of Rubber Industry, Shandong Linglong Tire Co., Ltd., Triangle Page 3 of 45

4 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 , GB/T , GB/T ; GB/T Page 4 of 45

5 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 , ISO :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 ULT 4PR 67/65 G 7.50 R 16 LT 8PR 112/107 Q 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) Page 5 of 45

6 Table 2 Light Truck Normal Section Diagonal Tyre (5 Rim) Design size for new Maximum dimension of Load capacity Load index tyre/mm tyre /mm Static /kg Minimum Measu Inflation Ply External External load distance Rim allowed rement Secti pressure inflating rating Singl Doubl diameter Total diameter radius Singl Double between double to be used rim on valve e tyre e tyre Road Tractio width Road Tractio /mm e tyre tyre tyres /mm width LT B B, 4J, 4½J CF LT B B, 4.50B, 4J, 4½J CF LT J ½J, 5J CF LT J ½J, 5J CF LT B B, 5.00B, 4J, 4½J, 5J CF LT B B, 5.00B, 4J, 4½J, 5J CF LT ½J J, 5J CF LT ½J J, 5J CF LT ½J J, 5J CF LT E ½J CJ LT E ½J CJ LT E ½J CJ LT E E CJ LT E E CJ LT E E CJ LT ½J J CF LT ½J J CF01 Page 10 of 45

7 Table 2 (Continued ) Ply rating Load index Singl Doubl e tyre e tyre Measu rement rim Design size for new tyre/mm External Secti diameter on Road Tractio width Maximum dimension of tyre /mm External Total diameter width Road Tractio Static load radius /mm Load capacity /kg Singl Double e tyre tyre Inflation pressure Minimum distance between double tyres /mm Rim allowed to be used inflating valve LT G F DG04C LT G F DG04C LT G F DG04C LT G F DG04C LT G F DG04C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C LT H G, 6.5 DG05C Page 13 of 45

8 215R16LT J ½J, 6½J DG04C 215R16LT J ½J, 6½J DG04C Table 6 Light Truck Metric Radial Tyre (75 Series, 5 Rim) Design size for new Maximum dimension of Load capacity Load index Inflatio tyre/mm tyre /mm Static /kg Measu n Minimum distance Ply External External load Rim allowed to rement Secti press between double inflating rating Singl Doubl diameter Total diameter radius Singl Double be used rim on ure tyres /mm valve e tyre e tyre Road Tractio width Road Tractio /mm e tyre tyre width 175/75R16LT J ½J, 56½J CF01 175/75R16LT J ½J, 56½J CF01 185/75R16LT J ½J, 56½J CF01 195/75R14LT ½J J, 6J CF01 195/75R14LT ½J J, 6J CF01 195/75R15LT ½J J CF01 195/75R15LT ½J J CF01 195/75R16LT ½J J, 6J CF01 195/75R16LT ½J J, 6J CF01 205/75R14LT ½J J, 6J CF01 205/75R14LT ½J J, 6J CF01 205/75R15LT ½J J, 6½J CF01 205/75R15LT ½J J, 6½J CF01 205/75R16LT ½J J, 6J 215/75R14LT J ½J, 6½J CF01 215/75R14LT J ½J, 6½J CF01 215/75R15LT J ½J, 6½J CF01 215/75R15LT J ½J, 6½J CF01 215/75R16LT J ½J, 6½J, 7J CF01 Page 19 of 45

9 R15LT J ½J, 9J, 11J CF01 CQ R15LT J ½J, 9J, 11J CF01 CQ R17LT J ½J, 9J, 11J CF01 CQ R17LT J ½J, 9J, 11J CF01 CQ01 Maximum section width of new tyre = The designed section width of new tyre 1.05; Minimum section width of new tyre = The designed section width of new tyre Maximum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Minimum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Note 1: The static load radius and the maximum sizes of tyre are for reference. Note 2: If the inflating valves of other types are adopted upon requirements, user shall negotiate with manufacturer. Table 11 ST Metric Tyres Specially Used in Road Trailer (65 series, 5 rim) Design size for new Maximum dimension Measur Inflation Ply Load tyre/mm of tyre /mm Static load Load ement pressure Rim allowed to be used inflating rating index Sectio External Total External radius /mm capacity /kg rim valve n width diameter width diameter 235/85*16ST ½J J, 7J, 7½J CF01 235/85*16ST ½J J, 7J, 7½J CF01 235/85*16ST ½J J, 7J, 7½J CF01 235/85*16ST ½J J, 7J, 7½J CF01 155/80*13ST ½J JB CF01 155/80*13ST ½J JB CF01 165/80*13ST ½J JB CF01 165/80*13ST ½J JB CF01 175/80*13ST JB ½JB, 5½JB CF01 175/80*13ST JB ½JB, 5½JB CF01 185/80*13ST JB ½JB, 5½JB, 6JB CF01 Page 25 of 45

10 Maximum section width of new tyre = The designed section width of new tyre 1.06; Minimum section width of new tyre = The designed section width of new tyre Maximum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Minimum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Note 1: The static load radius and the maximum sizes of tyre are for reference. The static load radius in this table refers to the static load radius under single tyre load; the static load radius under double tyre pressure is the result of the value shown in the table + 1mm. Note 2: If the inflating valves of other types are adopted upon requirements, user shall negotiate with manufacturer. Note 3: The said instructions, requirements, Note 1, and Note 2 are only applicable to Table 13 and Table 22. Table 13 Truck Normal Section Diagonal Tyre (15 Rim) Ply rating Load index Single Doubl tyre e tyre Meas ureme nt rim Design size for new tyre/mm External Secti diameter on Road Tractio width Maximum dimension of tyre /mm External Total diameter width Road Tractio Static load radius /mm Load capacity /kg Single Double tyre tyre Inflation pressure Singl Doubl e e tyre tyre Minimum distance between double tyres /mm Rim allowed to be used inflating valve DR DR DR07 Table 14 Truck Wide-base Diagonal Tyre (15 Rim) Ply rating Load index Measure ment rim Design size for new tyre/mm Maximum dimension of tyre /mm Static External diameter External diameter load Section Total radius width Road Traction width Road Traction /mm type type type type Load capacity /kg Inflation pressure Rim allowed to be used inflating valve CJ04, CJ06 Page 31 of 45

11 12.00R V, 9.0 DG09C 12.00R V, 9.0 DG09C 12.00R V, 9.0 DG09C 13.00R DG09C 13.00R DG09C 14.00R DG09C 14.00R DG09C 14.00R DG09C 14.00R DG09C Maximum section width of new tyre = The designed section width of new tyre 1.04; Minimum section width of new tyre = The designed section width of new tyre Maximum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Minimum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Note 1: The static load radius and the maximum sizes of tyre are for reference. The static load radius in this table refers to the static load radius under single tyre load; the static load radius under double tyre pressure is the result of the value shown in the table + 1mm.. Note 2: If the inflating valves of other types are adopted upon requirements, user shall negotiate with manufacturer. Note 3: The said instructions, requirements, Note 1, and Note 2 are only applicable Table 16 to Table 19. Table 16 Truck Normal Section Radial Tyre (15 Rim) Design size for new Maximum dimension of Load capacity Load index Inflatio tyre/mm tyre /mm Static /kg Minimum Measu n Ply External External load distance Rim allowed to be rement Secti press inflating rating Singl Doubl diameter Total diameter radius Singl Double between double used rim on ure valve e tyre e tyre Road Tractio width Road Tractio /mm e tyre tyre tyres /mm width 8R CJ05 8R CJ05 8R , 6.75 CJ05 8R , 6.75 CJ05 Page 34 of 45

12 type type type type 385/65R /65R /65R , /65R , /65R , Maximum section width of new tyre = The designed section width of new tyre 1.04; Minimum section width of new tyre = The designed section width of new tyre Maximum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Minimum external diameter of new tyre = 2 the designed section width of new tyre the nominal diameter of rim; Note 1: The static load radius and the maximum sizes of tyre are for reference. Note 2: If the inflating valves of other types are adopted upon requirements, user shall negotiate with manufacturer. Table 21 Recreational Vehicle Tyre (15 Rim) Ply rating Load index Measur ement rim Design size for new tyre/mm Sectio External n width diameter Maximum dimension of tyre /mm Total External width diameter Static load radius /mm Load capacity /kg Inflation pressure Rim allowed to be used inflating valve Page 40 of 45

13 Table 23 Corresponding Relation between Tyre Travel Speed and Load Variation Load variation rate % Speed/(km/h) Mini, light truck tyre Truck tyre Diagonal tyre Radial tyre Diagonal tyre Radial tyre Note: Load variation in the table is increased relative to the load capacity specified in the TABLE of size designation, dimension, inflation pressure and load capacity. Page 43 of 45

14 Appendix B (Normative) Corresponding Relation between Speed Symbol and Maximum Travel Speed The corresponding relation between speed symbol and the maximum travel speed shall comply with the provisions specified in Table B.1. Table B.1 Corresponding Relation between Speed Symbol and Maximum Travel Speed Speed symbol Maximum travel speed /(km/h) B 50 C 60 D 65 E 70 F 80 G 90 J 100 K 110 L 120 M 130 N 140 F 150 Q 160 R 170 S 180 T 190 U 200 H 210 END Page 45 of 45