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Safety nut SEM търсене

The safety nut SEM works like standard ball nut, but there is added safety part.

The use of a safety nut alone is not a sufficient protection against unintentional lowering of a load. The valid for the application security guidelines must be followed. Additional measures, such as the monitoring of the motor current and the monitoring of the drive train are provided.

Specification:

  • dimensions acc. to DIN 69051
  • reduced play or small preload until 2% Cdyn
  • right design
  • sizes Ø 32mm - 80mm
  • lenght up to 6500 mm
  • accuracy class P5 (0,023/300 mm)
  • accuracy class P7 (0,052/300 mm)




Nut dimensions

Part number ds P D g7 D1 D2 D3 Uspořádání otvorů L L1 L2 L3 S L4 dk Cdyn (N) Cstat (N) 3D (STP)
SEM3210-R-4EF 32 10 56 86 70 9.0 1 130 15 16 7.5 M6 66 27.8 40900 63200
SEM4010-R-4EF 40 10 63 93 78 9.0 2 130 15 16 7.5 M8x1 70 35.8 46800 82500
SEM4020-R-2EB 40 20 63 93 78 9.0 2 140 15 16 7.5 M8x1 70 35.8 23800 36400
SEM5010-R-5EF 50 10 75 110 93 11.0 2 145 16 16 8.0 M8x1 85 45.8 63900 133300
SEM6320-R-4EP 63 20 95 135 115 13.5 2 205 20 25 10.0 M8x1 100 55.40 105000 250000
SEM8020-R-5EP 80 20 125 165 145 13.5 2 230 25 25 12.5 M8x1 130 72.40 161500 398000

Max. shaft lengths

Part number Max. threaded length [mm] Max. total length [mm]
32 5500 6500
40 5500 6500
50 5500 6500
63 5500 6500
80 5500 6500