孟加拉标准-2995-工业车辆充气轮胎规格.doc

BANGLADESH NSBSTANDARD 2995 20140520 _Size designation,dimensions,inflation pressure and load capacity for passenger car tyres _ Reference number NSB 29952014IndexPreface1Size designation1Dimensions1Inflation pressures1Load capacities1Types1Service definitions of vehicles equipped with industrial tyres2Tyre selection2Others2Conventional diagonal tyres3Inflation pressure and load correlation table- conventional diagonal tyres 45Low section diagonal tyres5Inflation pressure and load correlation table low section diagonal tyres6Wide base diagonal tyres on 15drop center rims 6Preface1 Size designation Example: size designations for industrial pneumatic-tyres:Conventional section tyre: 6.00 9 NHS 10PRWide base tyre: 10 16.5 NHS 8PRLow profile tyre: 28 9 15 NHS 16PRPly ratingNot-highway serviceNominal rim diameter (in)Diagonal tyre construction codeNominal section width (in)Nominal tyre overall diameter(in)2 Dimensions2. 1 New tyre max. and min. section widths New tyre max. overall width=Design section width1.05 New tyre min. section width= Design section width0.972. 2 New tyre max. and min. overall diameters New tyre max. overall diameter=2Design section height1.05Nominal rim diameter New tyre min. overall diameter =2Design section height0.97Nominal rim diameter3 Inflation pressuresInflation pressures specified in the inflation pressures/loads tables are the max. inflation pressures for all sizes of tyres.4 Load capacitiesLoads specified in the inflation pressures/loads tables refer to the max. loads rated for tyres at corresponding pressures. 5 Types5.1 Counterbalanced lift truck tyresshort haul and intermittent operation lift trucks and similar vehicle tyres.5.2 Other industrial vehicle tyresother intermittent operation vehicle tyres.5.3 Wide base tyresindustrial tyres with rim widths/tyre section widths ratio around 0.80.5.4 Low profile tyresindustrial tyres with aspect ratios about 0.65（65series）or about 0.70（70 series）.6 Service definitions of vehicles equipped with industrial tyres6.1 Counterbalanced lift truck serviceapplies when the following 4 conditions are met:1)the vehicle usage is for material handling on smooth floors;2)the vehicle has a fixed, integral, vertical mast;3)the steering wheel tyres are loaded to a max. when the vehicle is fully unloaded ( no payload );4)the load wheel tyres are on the axle nearest the payload and loaded to a max. when the vehicle is fully loaded ( max. payload ).6.2 Other industrial vehicle serviceapplies to vehicles used for transporting, storing and retrieving material and goods in industry and commerce associated with manufacturing, warehousing, shipping and processing. 6.3 Off-the road servicerefers to vehicles intended primarily for use on unpaved surfaces in applications such as construction, mining, excavation and road building. 6.4 Intermittent servicerefers to a rigid frame vehicle designed for smooth floor operation such that significant load transfer between axles occurs when a load is picked up. Load distribution is designed to be even on the right and left sides of the vehicle. Intermittent service does not refer to the length of time a vehicle is in use but rather that it is loaded and unloaded intermittently. Currently only counterbalanced lift trucks meet this definition.6.5 Continuous servicerefer to that the vehicle is loaded most of the time when in operation; refers to all vehicles not designed for intermittent service. Continuous service does not refer to the long time operation of vehicle but rather refer to the vehicle is continually loaded while in operation.7 Tyre selection7.1 Selection of tyre size and ply rating must be based on the highest individual wheel load for a given service speed and condition.7.2 For counterbalanced lift trucks, the steering wheel tyre is loaded to its max. when the vehicle is fully unloaded ( no payload ). 7.3 The load wheel is loaded to its max. when the vehicle is fully loaded ( max. payload ). The load wheel tyres are on the axle nearest to the payload.8 Others For tyre sizes and ply ratings, load indexes, measuring rims, new tyre dimensions, max. tyre service dimensions, permitted rims and valve types, see Table 6-1, Table 6-3Table 6-5 and Table 6-6，in which max. tyre service dimensions are data as reference for usages. Inflation pressures ad corresponding loads can be seen in Table 6-2 and Table 6-4. Table 1 Conventional Diagonal tyresTyre size designationPly ratingMeas-uring rimNew tyre design dimension mmMax. tyre service dimension mmPermitted rimValve typeSection widthOverall diameterOverall widthOverall diameterRegular patternOTR patternRegular patternOTR pattern3.505NHS63.00SP99294107309CF014.008NHS6，83.00D1124151214342.50CCF01DF05C4.5012NHS83.00B1225481325703.00D，3.5J，3.50D，3.50BCF015.008NHS83.50D1374701484943.00DDG02C5.5015NHS84.50E157670170696DG02C6.009NHS10，124.00E1605401735684.50EDG02C6.0015NHS104.50170705-184733-4.50EDG02C6.5010NHS10，125.00F1755901896205.50FDG02C7.009NHS105.00S190590205623DG02C7.0012NHS12、145.00S1906766852057097125.50SDG02C7.0015NHS10，12、145.50F2007502167835.50S， 6.00GDG03C7.5010NHS125.50F2056452216805.00FDG02C7.5015NHS12，14，166.00G2157802328165.50F 6.50GDG03C7.5016NHS8，10，126.00G2158052328415.50F，6.50HDG05C8.2512NHS126.52357652548065.00SDG03C8.2515NHS12，14，16，186.52358402548816.50TDG05C8.2520NHS146.5235974992254101610366.50T，7.07.00TDG06C9.0016NHS146.50H2558909002759349447.00NDG05C9.0020NHS12，147.025910181038280106410867.00T，7.5，7.50VDG07C10.0020NHS147.527810551073300110411247.50V，8.0，8.00VDG08C11.0020NHS168.029310851105316113711597.50V，8.00VDG09C12.0020NHS16，18，208.531511251145340118112028.50V，9.00VDG09CTable 2 Inflation pressures/loads correlations for conventional diagonal tyresTyre size designationPlyrat-ingInflation pressurekPaVarious vehicle tyre loads ( kg ) at various max. speedsCounterbalance lift trucksOther industrial vehicles25km/h35km/hDrive wheelSteering wheelDrive wheelSteering wheel10km/h25km/h40km/h50km/h3.505NHS68603803203552804.008NHS672064054059547554040035534589006706704.5012NHS8900117599510958759957306556255.008NHS87901000845930745845625555535101000115097010658505.5015NHS87201670141015551240141010409308906.009NHS10860150512751400112012759408358051210301675141515601245141510459308956.5010NHS1079016551400154012301400103092088512100018951600176514106.0015NHS10830218518452030162518451360121511657.009NHS10860199516851850148016851240110510657.0012NHS1286023752005220517652005148013201265141000296525052755220525051850165015807.0015NHS10720259021852405192521851610144013801286028702420266521302420178515951530141000296525152760222525151880169016257.50-10NHS12830235019852180174519851460130512557.5015NHS12790307526802860228526801915171016401492533752840315024852840209518701795161000365029803400266529752190196018807.5016NHS852024902100231018452100155013801325106602855241526552120241517801585152512790319527002970237027001990177517058.2512NHS12720306025852840227025851905170016308.2515NHS127203490294532402590294521701940186014830377531853505280031852350209520101692540503550360030103550252022502160181000424036503770315036502640235522608.2520NHS1483045753865425033953865284525402440300-15NHS18830553048705135410546703440307029502093065755790610548805550409036503510Table 2 Inflation pressures/loads correlations for conventional diagonal tyres ( concluded )Tyre size designationPlyrat-ingInflation pressurekPaVarious vehicle tyre loads ( kg ) at various max. speedsCounterbalance lift trucksOther industrial vehicles25km/h35km/hDrive wheelSteering wheelDrive wheelSteering wheel10km/h25km/h40km/h50km/h9.00-16NHS14760449537954175333537952800250024009.00-20NHS1266047654025443035404025296526502540147605195438548253855438532302885277010.00-20NHS146905560469551654125469534603090296511.00-20NHS167606405540559454750540539853555341512.00-20NHS166906915584064205130584043003840368518790633546704170400020100074006325690556156325478543254170Table 3 Low section diagonal tyresTyre size designationPlyrat-ingMeas-uring rimNew tyre design dimension mmMax. tyre service dimension mmPermitted rimValve typeSection widthOverall diameterOverall widthOverall diameter1668NHS104.33R152425164445DG02C1878NHS14，164.33R173465187489DG02C2189NHS146.00E2005352165637.00EDG05C23910NHS12，166.50F225595243626DG05C231012NHS148.00G254597282623CJ0428915NHS127.02207062387357.00TDG07C281215NHS169.75BD305711338741CG08 DG1025015NHS16，187.5250735270767DG08C30015NHS188.0300840324881DG08CTable 4 Inflation pressures/loads correlations for low section diagonal tyresTyre size designationPlyrat-ingInflation pressurekPaVarious vehicle tyre loads ( kg ) at various max. speedsCounterbalance lift trucksOther industrial vehicles25km/h35km/hDrive wheelSteering wheelDrive wheelSteering wheel10km/h25km/h40km/h50km/h1668NHS10860108592010