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    TBI MOTION SOF Ball Spline Square Flange Nut

    TBI MOTION SOF Ball Spline Square Flange Nut

    SOF is a ball spline with a square flange nut and four through mounting holes for easy installation.

    Key features

    • It runs on a precision spline shaft with a two-row ball structure and transmits torque while moving linearly
    • It is suited to semiconductor equipment and general industrial machines
    • Sizes cover nominal 8 to 25 mm

    Specifications

    Ball rows 2
    Accuracy grades N/H/P
    Preload P0/P1/P2
    Shaft solid or hollow, length to order
    SOF8 Shaft diameter d: 8 mm | Ball rows: 2 | Nut OD D: 15 mm | Nut length L: 25 mm | Flange A: 28 mm | B: 3.8 mm | E: 5.2 mm | F: 22 mm | W: 22 mm | Mounting holes: 4 x 3.4 mm through | Basic dynamic load C: 121 kgf | Basic static load C0: 136 kgf | Dynamic torque CT: 0.56 kgf-m | Static torque C0T: 0.63 kgf-m | Static moment MA1/MA2: 0.34/2.24 kgf-m | Nut mass: 23.5 g | Shaft mass: 0.39 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF10 Shaft diameter d: 10 mm | Ball rows: 2 | Nut OD D: 19 mm | Nut length L: 30 mm | Flange A: 36 mm | B: 4.1 mm | E: 5.9 mm | F: 28 mm | W: 28 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 192 kgf | Basic static load C0: 219 kgf | Dynamic torque CT: 1.11 kgf-m | Static torque C0T: 1.27 kgf-m | Static moment MA1/MA2: 0.71/4.23 kgf-m | Nut mass: 45 g | Shaft mass: 0.61 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF12 Shaft diameter d: 12 mm | Ball rows: 2 | Nut OD D: 21 mm | Nut length L: 35 mm | Flange A: 38 mm | B: 4 mm | E: 6 mm | F: 30 mm | W: 30 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 222 kgf | Basic static load C0: 274 kgf | Dynamic torque CT: 1.51 kgf-m | Static torque C0T: 1.87 kgf-m | Static moment MA1/MA2: 1.08/6.02 kgf-m | Nut mass: 59 g | Shaft mass: 0.88 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF15 Shaft diameter d: 13.6 mm | Ball rows: 2 | Nut OD D: 23 mm | Nut length L: 40 mm | Flange A: 40 mm | B: 4.5 mm | E: 6.5 mm | F: 31 mm | W: 32 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 426 kgf | Basic static load C0: 619 kgf | Dynamic torque CT: 3.19 kgf-m | Static torque C0T: 4.65 kgf-m | Static moment MA1/MA2: 2.83/15.49 kgf-m | Nut mass: 77 g | Shaft mass: 1.11 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF20 Shaft diameter d: 18.2 mm | Ball rows: 2 | Nut OD D: 30 mm | Nut length L: 50 mm | Flange A: 46 mm | B: 5.5 mm | E: 8.5 mm | F: 35 mm | W: 38 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 673 kgf | Basic static load C0: 922 kgf | Dynamic torque CT: 6.73 kgf-m | Static torque C0T: 9.22 kgf-m | Static moment MA1/MA2: 4.95/29.36 kgf-m | Nut mass: 15 g | Shaft mass: 2.02 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF25 Shaft diameter d: 22.6 mm | Ball rows: 2 | Nut OD D: 37 mm | Nut length L: 60 mm | Flange A: 57 mm | B: 6.6 mm | E: 10.4 mm | F: 43 mm | W: 47 mm | Mounting holes: 4 x 5.5 mm through | Basic dynamic load C: 1142 kgf | Basic static load C0: 1458 kgf | Dynamic torque CT: 14.17 kgf-m | Static torque C0T: 18.14 kgf-m | Static moment MA1/MA2: 9.46/56.17 kgf-m | Nut mass: 255 g | Shaft mass: 3.10 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    Ball SplinesTBI MOTION
    6 product codes available in this family
    Sourced direct from KoreaExport-ready supplyCompetitive pricing
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    TBI MOTION SOF Ball Spline Square Flange Nut

    Brand TBI MOTION·Ball Splines

    Available part numbers (6)

    SOF8, SOF10, SOF12, SOF15, SOF20, SOF25

    How to order

    Send the TBI MOTION part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

    RFQ List 0 →
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    Product codes & specifications
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    RFQ List (0)
    Product codeSpec
    SOF8Shaft diameter d: 8 mm | Ball rows: 2 | Nut OD D: 15 mm | Nut length L: 25 mm | Flange A: 28 mm | B: 3.8 mm | E: 5.2 mm | F: 22 mm | W: 22 mm | Mounting holes: 4 x 3.4 mm through | Basic dynamic load C: 121 kgf | Basic static load C0: 136 kgf | Dynamic torque CT: 0.56 kgf-m | Static torque C0T: 0.63 kgf-m | Static moment MA1/MA2: 0.34/2.24 kgf-m | Nut mass: 23.5 g | Shaft mass: 0.39 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF10Shaft diameter d: 10 mm | Ball rows: 2 | Nut OD D: 19 mm | Nut length L: 30 mm | Flange A: 36 mm | B: 4.1 mm | E: 5.9 mm | F: 28 mm | W: 28 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 192 kgf | Basic static load C0: 219 kgf | Dynamic torque CT: 1.11 kgf-m | Static torque C0T: 1.27 kgf-m | Static moment MA1/MA2: 0.71/4.23 kgf-m | Nut mass: 45 g | Shaft mass: 0.61 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF12Shaft diameter d: 12 mm | Ball rows: 2 | Nut OD D: 21 mm | Nut length L: 35 mm | Flange A: 38 mm | B: 4 mm | E: 6 mm | F: 30 mm | W: 30 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 222 kgf | Basic static load C0: 274 kgf | Dynamic torque CT: 1.51 kgf-m | Static torque C0T: 1.87 kgf-m | Static moment MA1/MA2: 1.08/6.02 kgf-m | Nut mass: 59 g | Shaft mass: 0.88 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF15Shaft diameter d: 13.6 mm | Ball rows: 2 | Nut OD D: 23 mm | Nut length L: 40 mm | Flange A: 40 mm | B: 4.5 mm | E: 6.5 mm | F: 31 mm | W: 32 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 426 kgf | Basic static load C0: 619 kgf | Dynamic torque CT: 3.19 kgf-m | Static torque C0T: 4.65 kgf-m | Static moment MA1/MA2: 2.83/15.49 kgf-m | Nut mass: 77 g | Shaft mass: 1.11 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF20Shaft diameter d: 18.2 mm | Ball rows: 2 | Nut OD D: 30 mm | Nut length L: 50 mm | Flange A: 46 mm | B: 5.5 mm | E: 8.5 mm | F: 35 mm | W: 38 mm | Mounting holes: 4 x 4.5 mm through | Basic dynamic load C: 673 kgf | Basic static load C0: 922 kgf | Dynamic torque CT: 6.73 kgf-m | Static torque C0T: 9.22 kgf-m | Static moment MA1/MA2: 4.95/29.36 kgf-m | Nut mass: 15 g | Shaft mass: 2.02 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order
    SOF25Shaft diameter d: 22.6 mm | Ball rows: 2 | Nut OD D: 37 mm | Nut length L: 60 mm | Flange A: 57 mm | B: 6.6 mm | E: 10.4 mm | F: 43 mm | W: 47 mm | Mounting holes: 4 x 5.5 mm through | Basic dynamic load C: 1142 kgf | Basic static load C0: 1458 kgf | Dynamic torque CT: 14.17 kgf-m | Static torque C0T: 18.14 kgf-m | Static moment MA1/MA2: 9.46/56.17 kgf-m | Nut mass: 255 g | Shaft mass: 3.10 kg/m | Accuracy grades: N/H/P | Preload: P0/P1/P2 | Shaft: solid or hollow, length to order

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