www.jbj.co.uk/couplings.html#flender 10 #DriveLineHarmony Technical Information Mechanical Power Transmission Couplings Checking shaft-hub connection Shrink fit DIN 7190 Spline to DIN 5480 Shaft-hub connection Suggestion for calculationmethod Fitting recommendations for the shaft-hub connection are detailed on the following page 11.. Keyway connection to DIN 6885-1 DIN 6892 The coupling hub is frequently fitted flush with the shaft end face. If the shaft projects, the risk of collision with other coupling parts must be checked. If the shaft is set back, in addition to the load-bearing capacity of the shaft hub connection, the correct positioning of the hub must be ensured as well. If the bearing hub length is insufficient, restorative forces may cause tilting movements and so wear to and impairment of the axial retention. Also, the position of the set screw to be positioned on sufficient shaft or parallel key material must be noted. The torques specified in the tables of power ratings data of the coupling series do not necessarily apply to the shaft hub connection. Depending on the shafthub connection, proof of form stability is required.It is recommended to obtain proof of form strength by using calculation methods in accordance with the current state of the art Bolted flange connection VDI 2230 Flange connection with close-fitting bolts Checking low temperature and chemically aggressive environment Couplings Features of Standard Type N-EUPEX, RUPEX, N-BIPEX, ELPEX-S, ELPEX-B Parallel keyway to DIN 6885-1 keyway width JS9 The minimum permitted coupling temperature is specified in the Temperature factor FT table. In the case of chemically aggressive environments, please consult themanufacturer. and FLUDEXwith keyway toASMEB17.1 All series Preservation with cleaning emulsion FLUDEX couplings Fuse 140 °C Balancing quality G16 ELPEX-S, ELPEX-B and ELPEX coupling series ZAPEX, N-ARPEX,ARPEX, N-EUPEX, RUPEX, N-BIPEX, All series Unpainted All coupling series exceptARPEX clamping hubs Bore tolerance H7 other parts: Bore toleranceM7 brake drums of the N-EUPEX and RUPEX series. Bore diameter metric in the case of ZAPEX, N-ARPEX andARPEX All coupling series except FLUDEX Axial locking by means of set screw N-ARPEX andARPEX clamping hubs Bore tolerance H6 FLUDEX coupling series Axial lock by means of set screw or end washer Bore diameter metric in the case of the coupling series as well as coupling hubs with applied brake disks or Parallel keyway to DIN 6885-1 keyway width P9 FLUDEX couplings with keyway toASMEB17.1 Hollow shafts: bore tolerance K7 All coupling series with bore diameter - imperial Parallel keyway toASMEB17.1 ELPEX, FLUDEX coupling series. All coupling series Balancing in accordance with half parallel key standard FLUDEX coupling series Balancing quality G6.3
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