Overload Protection Clutches 2009 - Cross & Morse - #19

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Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m 17 Crossgard Overload Couplings Crossgard CG-ES Couplings The ES Couplings consist of two close grained cast iron jaws with hard rubber drive elements interposed. It is a low inertia coupling combining quiet operation with torsional elasticity to absorb shock loads and damp vibration. Crossgard Couplings can be supplied with both clutch and coupling hub finish bored, keyseated, with setscrew to customers’ requirements on 48-hour re-work service. Installation of Crossgard CG Clutches For optimum performance of CG Clutches and couplings it is necessary to have a good fit(transition) between shafts and hubs. Drives should be via a parallel key with interference fit with ideally two set screws to maintain axial position on shaft. The chain/belt drive should be accurately aligned to avoid axial loading of the clutch; and coupling assemblies should be carefully aligned at installation to minimise operating loads. All units should be installed with a limit switch or proximity switch to shut down the drive in the event of an overload, refer to page 29 for details standard units available. Installation of Crossgard Couplings Prior to installation it is necessary to separate the Crossgard and Coupling half by either removing the duplex chain, or for the ES Coupling removing the outer cover and the rubber element. Fit Crossgard and Coupling half to shafts, for ES Coupling ensure cover is fitted to hub prior to installation. Adjust distance between Crossgard and Coupling according to catalogue dimensions, and align shafts as accurately as possible. Refit duplex chain or rubber element and cover, ensure chain is free to move, and shafts rotate freely. Dimensions in mm. For further dimensions of Crossgard Clutch refer to page 15. Model Setting Torque Nm Max Speed RPM Misalignment Parallel Angular Pilot Bore Max Bore Pilot Bore Max Bore A B C D E F Weight kg Inertia kg m2 x10-2 Clutch Coupling CG-ES Crossgard Coupling CG20-ES CG30L-ES CG30H-ES CG50L-ES CG50M-ES CG50H-ES CG70-ES 9.6 - 45 19.8 - 54 53.6 - 167 68 - 147 136 - 407 196 - 540 294 -1080 700 500 300 160 0.5 0.7 0.9 1.2 0.7° 0.7° 0.6° 0.5° 8 12 22 32 20 30 50 70 - - - - 40 55 75 90 118 146 199 261 92 143 202 257 65 88 120 145 45 57 75 89 47 60 81 110 26 29 43 62 2.7 6.3 16.6 37.6 0.38 1.49 9.2 30.3 INDEX BACK NEXT