IPDB › China Industry › Industrial Equipment & Components › Shaft
Hydraulic System Spline Shaft1
Shaft, Spline Shaft Coupling, Nylon Spline Shaft
Jinjiang Feida Machinery Co., Ltd
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Product Description 1. Product OverviewA spline shaft is a mechanical transmission component that uses longitudinal keyways on the shaft surface to engage with matching hub keyways, enabling torque transmission and synchronous rotation. Some types also support axial sliding (e.g., gearbox gears), featuring high load capacity, good centering, and guidance.2. Core Parameters & Classification1. Main Types & FeaturesTypeTooth ShapeFeaturesApplication ScenariosStraight Spline ShaftRectangular teethMulti-tooth load-bearing, low stress concentration, easy to machine, high precisionAutomotive, machine tools, agricultural machineryInvolute Spline ShaftInvolute teethAutomatic centering, uniform tooth stress, high strength, long service lifeHeavy-duty equipment, aerospace, large machinery2. Basic ParametersItemParameter RangeNoteMaterial40Cr, stainless steel, aluminum alloy, titanium alloy, etc.Commonly used: 40Cr (quenched to HRC 45-50)Number of Teeth6-40 teeth (common: 6, 12, 16, 25 teeth)Light/medium series standardsCentering MethodOD centering, ID centering, tooth side centeringStraight splines often use OD centeringModule1-10 mmCommon for involute splines3. Processing Technology ComparisonProcessEquipmentPrecisionEfficiencyApplication ScenariosHobbingSpline hob + milling/gear hobbing machineHighHighMass production (internal/external splines)MillingUniversal milling machine + forming cutterMedium-lowLowPrototypes/small batches (rough machining)GrindingSpline grinding machine + forming wheelHighestMediumHardened splines/high-precision ID centeringCold FormingSpecial cold heading machineMedium-highHighHigh material utilization (plastic deformation)4. Typical Product Specifications1. Straight Spline Shaft (Examples)ModelOD (mm)ID (mm)TeethLength (mm)Application6-25-10025206100Automotive drive shaft12-35-200353012200Machine tool gearbox2. Involute Spline Shaft (Examples)ModulePressure AngleTeethPrecision GradeApplication Scenarios230°24IT6-IT7Aircraft engine transmission5. Application FieldsAutomotive: Gearbox shafts, steering system shafts, half-shaftsMachine Tools: Lead screws, dividing head shaftsAerospace: Engine drive shafts, landing gear componentsIndustrial Equipment: Reducers, conveyors, hydraulic systemsSpecial Scenarios: Telescopic spline shafts (e.g., off-road vehicle drive shafts)6. Quality & TestingHeat Treatment: Quenching + tempering, surface hardness HRC 45-50, core toughness retainedTesting Items: Tooth profile accuracy, concentricity, surface roughness, torque testStandards: Compliant with GB/T 1144 (straight splines), GB/T 3478 (involute splines)7. Customization ServicesSupport non-standard customization for: Materials: Stainless steel, aluminum alloy, etc.Dimensions: Extra-long shafts (≤1800 mm), micro shafts (≤10 mm)Surface Treatment: Chrome plating, zinc plating, black oxide Note: The above parameters are general specifications. Specific products can be customized according to equipment requirements. ,???
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