• WON ST Compact Ball Spline WSPL Series, Long Cylinder Type with Key Groove
1 1

WON ST Compact Ball Spline WSPL Series, Long Cylinder Type with Key Groove

WON ST Compact Ball Spline WSPL Series, Long Cylinder Type with Key Groove

Compact ball spline with a precision-ground Gothic-arch spline shaft and ball nut that carries radial and moment loads and transmits rotational torque with one nut; long cylindrical nut with key groove for higher load ratings.

Key features

  • Long cylindrical nut with key groove for higher load capacity
  • Two rows of Gothic-arch grooves with 4-point ball contact
  • Transmits torque while bearing radial and moment loads with one nut
  • Preload possible for zero rotational clearance and high rigidity
  • Rated load about ten times that of a ball bushing of equal shaft diameter

Specifications

Nut type Long cylinder nut with key groove
Shaft type options S solid / H hollow
Clearance options CL no preload / CM standard / CT light preload
Precision options Normal / H precision / P super
Material options Standard / M stainless (nut and shaft)
WSPL5 Shaft diameter d: 5 mm | Nut outer diameter D: 10 mm | Nut length L1: 26 mm | Key groove width W: 2 mm | C (dynamic): 882 N | C0 (static): 1176 N | T (dynamic torque): 2.646 N·m | T0 (static torque): 3.528 N·m | Nut mass: 7.9 g | Shaft mass: 14.9 g/100mm | Max. shaft length: 200 mm
WSPL6 Shaft diameter d: 6 mm | Nut outer diameter D: 12 mm | Nut length L1: 29.8 mm | Key groove width W: 2 mm | C (dynamic): 1078 N | C0 (static): 1470 N | T (dynamic torque): 3.626 N·m | T0 (static torque): 5.194 N·m | Nut mass: 14.5 g | Shaft mass: 19 g/100mm | Max. shaft length: 300 mm
WSPL8 Shaft diameter d: 8 mm | Nut outer diameter D: 15 mm | Nut length L1: 36.7 mm | Key groove width W: 2.5 mm | C (dynamic): 1764 N | C0 (static): 2450 N | T (dynamic torque): 8.33 N·m | T0 (static torque): 11.76 N·m | Nut mass: 26.5 g | Shaft mass: 39 g/100mm | Max. shaft length: 500 mm
WSPL10 Shaft diameter d: 10 mm | Nut outer diameter D: 19 mm | Nut length L1: 47 mm | Key groove width W: 3 mm | C (dynamic): 2842 N | C0 (static): 4018 N | T (dynamic torque): 16.66 N·m | T0 (static torque): 23.52 N·m | Nut mass: 56.5 g | Shaft mass: 60.5 g/100mm | Max. shaft length: 600 mm
WSPL12 Shaft diameter d: 12 mm | Nut outer diameter D: 21 mm | Nut length L1: 53.1 mm | Key groove width W: 3 mm | C (dynamic): 3234 N | C0 (static): 4802 N | T (dynamic torque): 21.56 N·m | T0 (static torque): 33.32 N·m | Nut mass: 76.8 g | Shaft mass: 87.5 g/100mm | Max. shaft length: 800 mm
WSPL15 Shaft diameter d: 13.6 mm | Nut outer diameter D: 23 mm | Nut length L1: 65 mm | Key groove width W: 3.5 mm | C (dynamic): 6370 N | C0 (static): 11564 N | T (dynamic torque): 48.02 N·m | T0 (static torque): 86.24 N·m | Nut mass: 110 g | Shaft mass: 111 g/100mm | Max. shaft length: 1000 mm
WSPL20 Shaft diameter d: 18.2 mm | Nut outer diameter D: 30 mm | Nut length L1: 71 mm | Key groove width W: 4 mm | C (dynamic): 9310 N | C0 (static): 15092 N | T (dynamic torque): 93.10 N·m | T0 (static torque): 150.92 N·m | Nut mass: 198 g | Shaft mass: 202 g/100mm | Max. shaft length: 1000 mm
WSPL25 Shaft diameter d: 22.6 mm | Nut outer diameter D: 37 mm | Nut length L1: 84 mm | Key groove width W: 5 mm | C (dynamic): 15394 N | C0 (static): 23191 N | T (dynamic torque): 192.92 N·m | T0 (static torque): 289.88 N·m | Nut mass: 336 g | Shaft mass: 310 g/100mm | Max. shaft length: 1200 mm
WSPL30 Shaft diameter d: 27.2 mm | Nut outer diameter D: 45 mm | Nut length L1: 98 mm | Key groove width W: 7 mm | C (dynamic): 21291 N | C0 (static): 31587 N | T (dynamic torque): 319.87 N·m | T0 (static torque): 473.81 N·m | Nut mass: 634 g | Shaft mass: 450 g/100mm | Max. shaft length: 1200 mm
Ball SplinesWON ST
9 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
RFQ List 0 Email about this

Need a different model, or a part not listed here? Send us your parts list →

WON ST Compact Ball Spline WSPL Series, Long Cylinder Type with Key Groove

Brand WON ST·Ball Splines

Available part numbers (9)

WSPL5, WSPL6, WSPL8, WSPL10, WSPL12, WSPL15, WSPL20, WSPL25, WSPL30

How to order

Send the WON ST 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 →
View full details
Product codes & specifications
0 selected
RFQ List (0)
Product codeSpec
WSPL5Shaft diameter d: 5 mm | Nut outer diameter D: 10 mm | Nut length L1: 26 mm | Key groove width W: 2 mm | C (dynamic): 882 N | C0 (static): 1176 N | T (dynamic torque): 2.646 N·m | T0 (static torque): 3.528 N·m | Nut mass: 7.9 g | Shaft mass: 14.9 g/100mm | Max. shaft length: 200 mm
WSPL6Shaft diameter d: 6 mm | Nut outer diameter D: 12 mm | Nut length L1: 29.8 mm | Key groove width W: 2 mm | C (dynamic): 1078 N | C0 (static): 1470 N | T (dynamic torque): 3.626 N·m | T0 (static torque): 5.194 N·m | Nut mass: 14.5 g | Shaft mass: 19 g/100mm | Max. shaft length: 300 mm
WSPL8Shaft diameter d: 8 mm | Nut outer diameter D: 15 mm | Nut length L1: 36.7 mm | Key groove width W: 2.5 mm | C (dynamic): 1764 N | C0 (static): 2450 N | T (dynamic torque): 8.33 N·m | T0 (static torque): 11.76 N·m | Nut mass: 26.5 g | Shaft mass: 39 g/100mm | Max. shaft length: 500 mm
WSPL10Shaft diameter d: 10 mm | Nut outer diameter D: 19 mm | Nut length L1: 47 mm | Key groove width W: 3 mm | C (dynamic): 2842 N | C0 (static): 4018 N | T (dynamic torque): 16.66 N·m | T0 (static torque): 23.52 N·m | Nut mass: 56.5 g | Shaft mass: 60.5 g/100mm | Max. shaft length: 600 mm
WSPL12Shaft diameter d: 12 mm | Nut outer diameter D: 21 mm | Nut length L1: 53.1 mm | Key groove width W: 3 mm | C (dynamic): 3234 N | C0 (static): 4802 N | T (dynamic torque): 21.56 N·m | T0 (static torque): 33.32 N·m | Nut mass: 76.8 g | Shaft mass: 87.5 g/100mm | Max. shaft length: 800 mm
WSPL15Shaft diameter d: 13.6 mm | Nut outer diameter D: 23 mm | Nut length L1: 65 mm | Key groove width W: 3.5 mm | C (dynamic): 6370 N | C0 (static): 11564 N | T (dynamic torque): 48.02 N·m | T0 (static torque): 86.24 N·m | Nut mass: 110 g | Shaft mass: 111 g/100mm | Max. shaft length: 1000 mm
WSPL20Shaft diameter d: 18.2 mm | Nut outer diameter D: 30 mm | Nut length L1: 71 mm | Key groove width W: 4 mm | C (dynamic): 9310 N | C0 (static): 15092 N | T (dynamic torque): 93.10 N·m | T0 (static torque): 150.92 N·m | Nut mass: 198 g | Shaft mass: 202 g/100mm | Max. shaft length: 1000 mm
WSPL25Shaft diameter d: 22.6 mm | Nut outer diameter D: 37 mm | Nut length L1: 84 mm | Key groove width W: 5 mm | C (dynamic): 15394 N | C0 (static): 23191 N | T (dynamic torque): 192.92 N·m | T0 (static torque): 289.88 N·m | Nut mass: 336 g | Shaft mass: 310 g/100mm | Max. shaft length: 1200 mm
WSPL30Shaft diameter d: 27.2 mm | Nut outer diameter D: 45 mm | Nut length L1: 98 mm | Key groove width W: 7 mm | C (dynamic): 21291 N | C0 (static): 31587 N | T (dynamic torque): 319.87 N·m | T0 (static torque): 473.81 N·m | Nut mass: 634 g | Shaft mass: 450 g/100mm | Max. shaft length: 1200 mm

Need a different model, or a part not listed here? Send us your parts list →

Related products

All Linear Motion & Bearings →