340 TECHNICAL INFORMATION t "MMPXBCMF 5PSRVF A torque that a coupling can continuously transmit. Select a allowable torque according to selection method given on 1 which would ensure that using load torque is less than the allowable torque of the coupling. In couplings for Servo Motors, compensation factor recommended for each part number is set. t Misalignment An error between 2 coupling shaft centers. Misalignments are: Angular Misalignment, Lateral Misalignment and Axial Misalignment. Align (Centering) the shafts to ensure that misalignment between two shafts is less than the mentioned allowable misalignment. When two or more misalignments are combined, the allowable value for respective misalignment is 1/2. (Explanation regarding misalignment is as follows) Fig. 1 Angular Misalignment (Angle Error between Two Shaft Centers) Angular Misalignment Angular Misalignment Angle Error between two coupling shafts. (Fig. 1) Fig. 2 Lateral Misali ent (Parallelism Error between Two Shaft Centers) Lateral Misalignment Straight Edge Lateral Misalignment Angle Error between two coupling shafts. (Fig. 2) Fig. 3 Axial Misalignment (Shaft's Shift in the Axial Direction) Axial Misalignment Axial Misalignment Displacement in the axial direction of various shafts. (Fig. 3): This misalignment occurs at the time of motor acceleration or, due to swelling at the time of rise in temperature. t 4UBUJD 5PSTJPOBM 4QSJOH $POTUBOU 5PSTJPOBM 3JHJEJUZ Torsional rigidity of the coupling. It shows the phase difference between the rotating direction of input shaft and output shaft, when torque is applied to the coupling. The value given in the catalogue indicates the torsional rigidity for the whole coupling. The responsiveness increases as this value increases, and highly-precise rotation control becomes possible. t Max. Rotational Speed Highest available rotational speed. Balancing is necessary when using for high speed rotation, as dynamic balance is not considered in this value. t Moment of Inertia Inertia moment of the coupling. Rotatory inertia increases in respect to increase in the value of inertia moment. t Zero Backlash A rattling noise occurring in various parts of the coupling, corresponding to the rotating direction. When using Servo Motors, consider using disk coupling or slit couplings with zero backlash for the purpose of highly precise positioning, clock-wise and anti-clockwise rotation. t 5JHIUFOJOH 5PSRVF A bolt tightening torque to fasten the coupling to the shaft. Use torque wrench to tighten the coupling to prescribed torque. 0QFSBUJOH 5FNQFSBUVSF °$ 5FNQFSBUVSF $PSSFDUJPO 'BDUPS -20~ 30 1.00 30~ 40 0.80 40~ 60 0.70 60~100 0.55 t 5FNQFSBUVSF $PSSFDUJPO 'BDUPS Resin spacer couplings such as Oldham and Jaw Types have allowable torque values that vary depending on the operating temperature. Select couplings by multiplying couplings Allowable Torque, Max. Rotational Speed, etc by Temperature Compensation Factor in the right hand table. 2 5FSNJOPMPHZ t 4MJQ 5PSRVF A torque which spins the fastened shaft and coupling, and slides out. Select the shaft slip torque when it is less than the allowable torque according to the selection method given on 1 , such that the load torque is less than the shaft slip torque of the coupling. 1) Confirm that the clamping screws are loosened, and wipe clean the inner bore and shaft surfaces off dust and oils. 2) Insert the shaft into the coupling while taking care not to apply excessive compressive/tensile forces on the disc section. 3) Adjust the disk coupling in left-right hub concentration in precise manner, using the jig. Quickly check the angular and lateral misalignment using coupling as a base. Fig. 4 Quick Lateral Misalignment Check Fig. 5 Quick Angular Misalignment Check - Fig. 6 Shaft Insertion Depth 3-1)Quick Lateral Misalignment Check (Fig. 4): Slide the coupling in axial direction while the bolts are loosened and check that it is moving smoothly. Center the coupling properly as the single type coupling does not allow lateral misalignment. 3-2)Quick Angular Misalignment Check (Fig. 5): Rotate the coupling/shaft and visually check for smooth and even movement. 4)Final assembly: Adjust the shaft insertion as per the dimensions given in the catalogue (Fig. 6) and fasten it with prescribed torque by using the torque wrench.MDo not fasten till the prescribed torque at once. Alternate between left and right clamp and tighten it two or three times. 2 Assembly Procedure Couplings Terminology for Couplings·Assembly Procedure
RkJQdWJsaXNoZXIy MTc2MTk0OA==