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      Load capacity calculation

      The difference between the tested conditions and the real conditions is taken into account by the safety factor. The value of the safety factor can only be determined by a person (designer) who knows the working conditions of the wheels as well as the relevant STN. RENOST consulting can only recommend the value of the factor based on the available information, without guarantee.
      Požadovaná nosnosť sa stanoví nasledovne:
      N=
      V+O
      n
      .β
      Own weight of transport device
      kg
      Maximum load weight
      kg
      Number of scroll wheels and wheels used
      ks
      Safety faktor
      Carrying capacity
      kg
      It determines the deviations of standardized conditions (STN EN 12 527, 12 532) from real ones, which ensure the surface, speed of the device, height of thresholds, slope of slopes, uniformity of load distribution, direction of movement of the roller and wheel, temperature (+15 °C to +28 °C).
      β = 1,3 - 1,5 manual handling in standard conditions, flat cast floor, occasional handling
      β = 1,6 - 3,9 manual handling in adverse conditions - sloping exits, uneven elevator entrances, uneven floors, car exit ramps, frequent handling
      β = 4,0 a viac for machine-towed equipment in continuous operation, generally demanding conditions, not for powered applications

      Catalogue code:H710572
      EAN:
      8585019293749
      TREAD AND TYRE HARDNESS98° ± 2° Shore A
      ROLLING RESISTANCEvery good
      OPERATING NOISEgood
      WEAR RESISTANCEvery good
      TEMPERATURE RANGEfrom -20 °C to +60 °C

      Bracket 638 series:

      Fixed castorwith top plate (4 bolt holes)

      • pressed steel
      • zinc-plated, Cr6-free

      Wheel ALE series:

      Wheel center:

      • aluminium
      • reinforced with closed ribbing
      • corrosion-free
      • aluminium color

      Tread:

      • elastic solid rubber
      • chemically-bonded inseparable connection with the wheel center (vulkanized)
      • excellent at crossing obstacles
      • vibration-absorbing
      • silent operation
      • black color

      Application:

      • hard (armored) floors
      • suitable for uneven surfaces

      Bearing - ball:

      • two radial ball bearing with sealing covers

      -

      Load
      Load
      450 kg
      Diameter (D)
      Diameter (D)
      250 mm
      Wheel width (S)
      Wheel width (S)
      76 mm
      Bearing type
      Bearing type
      Ball
      Mounting height(H)
      Mounting height(H)
      303 mm
      Plate size (A x B)
      Plate size (A x B)
      195 × 160 mm
      Bolt hole spacing (a x b)
      Bolt hole spacing (a x b)
      160 × 120 mm
      Bolt holes Ø
      Bolt holes Ø
      14,5 mm
      Attributes
      Attributes
      Nízka hlučnosť
      Mounting type
      Mounting type
      Mounting bracket
      Tread material
      Tread material
      Guma a TPE
      Farba behúňa
      Farba behúňa
      Čierna
      Wheel centre colour
      Wheel centre colour
      Sivá
      Wheel centre
      Wheel centre
      Hliníková liatina
      sk
      cz
      gb
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