RB Series - content2.smcetech.com

1 Series VariationsSeriesBasic typeWith cap orbumper (Option)Hexagonnut Stopper nut(Option)FootbracketPage899906910 2 Hexagon nuts are attached for the RB Series and standard models seriesRBQ seriesCoolant resistantRBL seriesRB SeriesRBQ SeriesM6, M8, M10, M14, M20, M27 Thread sizeM10, M14, M20, M27M16, M20, M25, M30, M32RB SeriesShock AbsorberOptional specifications are not available for impact and noiseDampening to meet the high speed requirements of the modern absorberAutomatic adjustment to the most appropriate absorption performanceSpecially designed orifice can absorb energy comprehensively and most appropriately in many different applications.

2 This ranges from high speed low loads, to load speed high loads; without requiring additional adjustment of the shock of comparison for drag characteristics Drag waveform will vary depending on the operating bumperSMC shock absorber (Large energy) SMC shock absorber(Small energy) DashpotRubber bumperSMC shock absorber (Large energy) SMC shock absorber(Small energy) Short type: RBQ seriesShock absorber: RB seriesCoolant resistant type: RBL seriesUsable without a stopper nutThe strong body can be positioned compact type that has been shortened lengthwiseAllowable eccentric angle is 5 Suitable for absorption of rotation without a stopper nutThe strong body can be positioned -X RBShock AbsorberRB SeriesTechnical and operational of kinetic energy of thrust energy of corresponding mass of impacting object of and operational of kinetic energy of thrust energy of corresponding mass of impacting object of applicable model Confirmation of specificationsYES Kinetic energy E1E1 Thrust energy E2E2

3 Corresponding mass of impacting object Me Selection of RB0604 YESMe impactCollision speed (1) Kinetic energyE1 Thrust energyE2 Absorbed energyECorresponding (2)mass ofimpacting objectMeCylinder stroke at load (Horizontal) F1 SE1 + E2 Confirmation of specificationsYES Kinetic energy E1E1 J Thrust energy E2E2 J Corresponding mass of impacting object Me Selection of applicable modelYESS elect RB2015Me 260 kgModel Selectionm = 1 kg = m/sd = 10 mmp = MPan = 30 cycle/mint = 25 Cm = 50 kg = m/sd = 40 mmp = MPan = 20 cycle/min t = 25 C m 212 E2 2RB0604 satisfies Me = < 3 kg (Max.)

4 Corresponding mass of im-pacting object). Ultimately, it will result in an operating frequency of 30 < 80, without causing a the Formula Absorbed energy E = E1 + E2 = to calculate Me. Substitute for E and for .Model Selection StepSelection Example1. Type of impact2. Enumeration of operating conditions3. Specifications and operational instructions4. Calculation of kinetic energy E15. Calculation of thrust energy E26. Calculation of corresponding mass of impacting object MeCylinder stroke at load (Horizontal)Cylinder stroke at load (Downward)Cylinder stroke at load (Upward)Conveyor stroke at load (Horizontal)Free horizontal impactFree dropping impactRotating impact (With torque)

5 Symbolm h RdpFTnt Operating conditionImpacting object massCollision speedDropping heightAngle speedDistance between axis of cylinder and impact pointBore sizeCylinder operating pressureThrustTorqueOperation cycleAmbient temperatureFriction coefficient Unitkgm / secmrad/secmmmMPaNN mcycle / min C Ensure that the collision speed, thrust, operation cycle, the ambient temperature and atmosphere fall within the specifications. Be aware of the min. installation radius in the case of rotating the equation suitable for the classifica-tion of any shock absorber as a provisional energy E = E1 + E2 Corresponding mass of impacting object Me = E2 2 < 5 (max.)

6 T 10 (min.) < 25 < 80 (max.)F F1 628 < 1961 (max.) < (max.)t 10 (min.) < 25 < 80 (max.)F F1 <Use Formula to calculate E1. Substitute 50 for m and for .Use Formula to calculate E1. Substitute for m and for .Use the formula Absorbed energy E = E1 + E2 = + = J to calculate Me. Substitute J for E and for .According to Data D , the tentative-ly selected RB2015 satisfies Me = 260 kg < 400 kg at = Ultimately, it will result in an operating frequency of n 20 < 25, without causing a both absorbed energy E and collision speed for Data A in order to calculate the cor-responding mass of the impacting object select a model RB2015 and make the use of Data B.

7 According to d = 40, E2 is select a model RB0604 and make the use of Data B at left. According to d = 10, E2 is the case of thrust energy of cylinder E1, substitute respective figures for Data B or Data C .CylinderLoadShock absorberIn the case of cylinder stroke at load and free horizontal impact, substitute respective figures for Data A in order to calculate Selection of applicable modelIn order for the shock absorbers to operate accurately for long hours, it is necessary to select a model that is well-suited to your operating conditions.

8 If the impact energy is smaller than 5% of the maximum energy absorption, select a model that is one class on SelectionTaking into consideration the corresponding mass of the impacting object Me, calculated using Data D and collision speed , check provisional model compatibility with the condition of application. If this is satisfactory, then the said provisional model will be the applicable Absorber RB Series1. Type of ImpactTypeof impactCollision speed (1) Kinetic energyE1 Thrust energyE2 Absorbed energyECorresponding (2)mass of impacting objectMeCylinder strokeat load (Downward)Cylinder strokeat load (Upward)Conveyor strokeat load (Horizontal)Free droppingimpactm g S2ghm g hm g SE1 + E2 Rotating impact(With torque) RE1 + E2T SR Collision speed (m/s) speed (m/s)Impact object mass m or corresponding mass Me (kg)Impact object mass m or corresponding mass Me (kg)

9 RB0604RB 0805 to 2725E1 or E Data AKinetic Energy E1 or Energy Absorption E m 212 E 2 2F1 S + m g SE1 + E212 m 2 E 2 12 m 22 E 22 E 22E1 + E2 m 212 E 2 2F1 S + m g SE1 + E2 LoadLoadLoadLoadLoadCylinderCylinderNote 4) For the formula of moment of inertia (kg m2), refer to the catalog of rotary npRSTt mMe SpecificationsBore sizeAbsorbed energyKinetic energyThrust energyCylinder thrust Acceleration of gravity ( )Dropping height Moment of inertia around the center of gravity Operating frequencyCylinder operating pressure Distance between axis of cylinder and impact pointShock absorber stroke TorqueAmbient temperatureCollision speedImpact object massAngle speedFriction coefficientUnitmmJJJNm / s2mkg m2cycle / minMPa mmN m Cm / skgkgrad / s (4)SymbolCorresponding mass of impact objectNote 1) Collision speed is momentary velocity at which object is impacting against shock absorber.

10 The collision speed is = 2 when the speed (average speed ) is calculated from the air cylinder s stroke 2) An Impact body equivalent mass is the mass of an impact object without involving thrust, into which an object s total energy has been converted. Hence, E = Me 2 Note 3) R: The distance between rotational center and impact point. Set R at the minimum installation radius (page 904) or (3)897 RJRBD- -X RBRB Series (Operating pressure MPa) (J)Operating pressure(MPa) absorption(mm)RB 2725RB 2015RB 1412RB 1411RB 1007RB 0806RB 1006RB RB0604 Bore size d (mm) Data BThrust Energy of Cylinder F1 S Operating pressure other than MPa.