SPK – Flanged wheel and castor series

Cast iron flanged wheels

The wheels in the SPK series are made from high-quality grey cast iron with machined treads and edges. These features improve concentricity. Due to their hardness of 180 to 220 HB, the wheels provide excellent rolling and swivel resistance. They are also highly resistant to wear. The wheels in this series meet the tread requirements specified in crane rail standard DIN 536.

The wheels are frequently used for rail vehicles and for machine and systems engineering applications. They are also used in mobile shelving systems.

  • SPK – Wheels

    The wheels in the SPK series are available in sizes 50 - 250 mm with a ball bearing and plain bore.


    Wheel Ø without
    flange
    [mm]
    Wheel Ø
    including flange
    [mm]
    Wheel
    width
    [mm]
    Running
    width
    [mm]
    Flange
    location
    [mm]
    Load capacity
    at +70 °C
    [kg]
    Bearing type


    Axle bore Ø

    [mm]
    Hub
    length
    [mm]
    SPK 50G 50 62 32 26 6 400 plain bore 15 32
    SPK 75G 75 100 40 30 13,5 700 plain bore 20 47
    SPK 75K 75 100 40 30 13,5 700 ball bearing 20 47
    SPK 100G 100 125 46 36 13 800 plain bore 20 52
    SPK 100K 100 125 46 36 13 800 ball bearing 20 52
    SPK 125G 125 145 46 36 13 900 plain bore 20 52
    SPK 125K 125 145 46 36 13 900 ball bearing 20 52
    SPK 150G 150 175 46 36 13 1.000 plain bore 20 52
    SPK 150K 150 175 46 36 13 1.000 ball bearing 20 52
    SPK 180G 180 210 46 36 13 1.200 plain bore 30 52
    SPK 180K 180 210 46 36 13 1.200 ball bearing 20 52
    SPK 200G 200 230 53 38 20 1.500 plain bore 30 60
    SPK 200K 200 230 53 38 20 1.500 ball bearing 25 60
    SPK 201K 200 230 80 60 20 3.000 ball bearing 40 90
    SPK 250G 250 300 65 50 17,5 2.500 plain bore 40 70
    SPK 250K 250 300 65 50 17,5 2.500 ball bearing 30 70
    SPK 251K 250 300 80 60 25 3.500 ball bearing 40 90
  • SPK – Fixed castors

    The SPK series is also available as a castor with a fixed bracket:

    BS series: Heavy duty welded steel fixed bracket with top plate fitting

    A detailed description of the bracket series is available in our guide.


    Wheel Ø

    [mm]
    Wheel Ø
    including flange
    [mm]
    Wheel
    width
    [mm]
    Running
    width
    [mm]
    Flange
    location
    [mm]
    Load capacity
    at 4 km/h
    [kg]
    Bearing type


    Total height

    [mm]
    Plate
    dimensions
    [mm]
    Bolt hole
    spacing
    [mm]
    Bolt
    hole Ø
    [mm]
    BS-SPK 100K 100 125 46 36 13 800 ball bearing 157 140 x 110 105 x 75–80 11
    BS-SPK 125K 125 145 46 36 13 900 ball bearing 170 140 x 110 105 x 75–80 11
    BS-SPK 150K 150 175 46 36 13 1.000 ball bearing 200 140 x 110 105 x 75–80 11
    BS-SPK 200K 200 230 53 38 20 1.500 ball bearing 245 140 x 110 105 x 75–80 11
    BS-SPK 201K 200 230 80 60 20 3.000 ball bearing 245 175 x 140 140 x 105 14
    BS-SPK 250K 250 300 65 50 17,5 2.500 ball bearing 305 175 x 140 140 x 105 14
    BS-SPK 251K 250 300 80 60 25 3.500 ball bearing 305 200 x 160 160 x 120 14