Made-to-Order Sprockets - Tsubaki
Made-to-Order Sprockets - Tsubaki
Made-to-Order Sprockets - Tsubaki
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Sprocket TechnicalSectionSprocket Hardening andMaterials<strong>Tsubaki</strong> can manufacture sprockets <strong>to</strong> meet yourspecific needs. The results are sprockets designed<strong>to</strong> maximize the life of your chain. Chains andsprockets must work <strong>to</strong>gether, so buying them fromthe same source makes sense. When chains andsprockets articulate correctly, the life of the chain isextended. That means long term savings and realvalue for your application.<strong>Tsubaki</strong> sprockets can be made in a variety ofgrades of carbon,stainless, and alloysteels, as well as othermetals. Since chainloadings are distributedover all engagedsprocket teeth, <strong>to</strong>othbreakage or dis<strong>to</strong>rtion isnot normally a problem.It is seldom necessary <strong>to</strong>use special highBronze Idler <strong>Sprockets</strong>trength material. Diameter, pitch and strands ofthe sprocket determine the specific grade of carbonsteel used. Many of our wide range of carbon steelsprockets are heat treated as a standard. For othersprockets, heat-treating can be specified as anoption. Heat-treated carbon steel provides longwear life and resists abrasion.The hardening process of small diameter, smallpitch sprockets is usually a one step procedureusing electrical induction heat-treating. Largediameter, large pitchsprockets are usuallyheat-treated usingdirect flamehardening. Thesemethods are used <strong>to</strong>provide highhardness at the wear Direct Flame Hardening Processareas of each <strong>to</strong>othmaintaining a ductile <strong>to</strong>oth core that is <strong>to</strong>ugh andresilient. The hubs and bore remain soft <strong>to</strong> permitreworking.All dimensions are in inches unless otherwise specified.Hardness Conversion TableRockwell “C”330 Lbs. Load10111314151617182021222324252628293031323334353637384041424445464749505253555758606264666870A130 Lbs.--------60.561.061.562.062.563.063.564.565.065.566.066.567.067.568.068.569.069.570.571.071.572.573.073.574.075.576.077.077.578.579.580.081.082.583.584.585.586.5ShoreModel C27282829303031313233343536373738394042434445464849515254555759616365677072757881848791951001066600 Lbs. LoadBrinell No.183187192197202207212217223229235241248255262269277285293302311321331341352363375388401415429444461477495514534555578601627653682712745780Tensile Str.Pounds per Sq. In.91,00093,00095,00097,00099,000101,000104,000107,000110,000113,000116,000119,000122,000125,000128,000131,000134,000138,000142,000146,000150,000155,000160,000165,000170,000176,000182,000189,000196,000204,000212,000220,000229,000238,000247,000256,000266,000276,000287,000298,000311,000324,000337,000352,000368,000384,000<strong>Sprockets</strong><strong>Tsubaki</strong> s<strong>to</strong>ck sprocket hardness is:Rockwell A Scale: 68-76Rockwell C Scale: 35-50Tighter ranges, or higher minimumhardness can be supplied at yourrequest.Electrical Induction Hardening ProcessE-217
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