![[THK] — SLS Ball Spline Nut (High-Torque Retainer Type)](https://prosourcemro.com/wp-content/uploads/2026/05/001-956-1024x803.png)
Ball Splines
THK
[THK] — SLS Ball Spline Nut (High-Torque Retainer Type)
Family ID: THK-SLS-BALL-SPLINE
THK SLS-type Ball Spline Nut, high-torque retainer type. Cylindrical outer diameter with keyway for housing fixation and torque transmission. SLS-L type has same outer diameter as SLS with extended nut length for higher load capacity. Sizes: SLS25–SLS100 (standard) and SLS25L–SLS100L (long).
16 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| SLS25 | THK SLS25, D=37mm L=60mm, CT=219.9N·m C0T=306.8N·m | THK | Model: SLS25 | Type: SLS Ball Spline Nut, Standard | OD D: 37 mm | Length L: 60 mm | Keyway Width b: 5 mm (H8) | Keyway Depth t: 3.0 mm | Dynamic Load C: 18.2 kN | Static Load C0: 22.5 kN | Dynamic Torque CT: 219.9 N·m | Static Torque C0T: 306.8 N·m | Nut Mass: 0.15 kg | Shaft Mass: 3.51 kg/m | ||
| SLS30 | THK SLS30, D=45mm L=70mm, CT=366.5N·m C0T=513.3N·m | THK | Model: SLS30 | Type: SLS Ball Spline Nut, Standard | OD D: 45 mm | Length L: 70 mm | Keyway Width b: 7 mm (H8) | Keyway Depth t: 4.0 mm | Dynamic Load C: 25.4 kN | Static Load C0: 31.5 kN | Dynamic Torque CT: 366.5 N·m | Static Torque C0T: 513.3 N·m | Nut Mass: 0.3 kg | Shaft Mass: 5.05 kg/m | ||
| SLS40 | THK SLS40, D=60mm L=90mm, CT=818.9N·m C0T=1135.4N·m | THK | Model: SLS40 | Type: SLS Ball Spline Nut, Standard | OD D: 60 mm | Length L: 90 mm | Keyway Width b: 10 mm (H8) | Keyway Depth t: 4.5 mm | Dynamic Load C: 42.8 kN | Static Load C0: 52.5 kN | Dynamic Torque CT: 818.9 N·m | Static Torque C0T: 1135.4 N·m | Nut Mass: 0.69 kg | Shaft Mass: 9.18 kg/m | ||
| SLS50 | THK SLS50, D=75mm L=100mm, CT=1373.4N·m C0T=1783.1N·m | THK | Model: SLS50 | Type: SLS Ball Spline Nut, Standard | OD D: 75 mm | Length L: 100 mm | Keyway Width b: 15 mm (H8) | Keyway Depth t: 5.0 mm | Dynamic Load C: 57.6 kN | Static Load C0: 66.2 kN | Dynamic Torque CT: 1373.4 N·m | Static Torque C0T: 1783.1 N·m | Nut Mass: 1.3 kg | Shaft Mass: 14.45 kg/m | ||
| SLS60 | THK SLS60, D=90mm L=127mm, CT=2506.7N·m C0T=3321.0N·m | THK | Model: SLS60 | Type: SLS Ball Spline Nut, Standard | OD D: 90 mm | Length L: 127 mm | Keyway Width b: 18 mm (H8) | Keyway Depth t: 6.0 mm | Dynamic Load C: 87.8 kN | Static Load C0: 103.0 kN | Dynamic Torque CT: 2506.7 N·m | Static Torque C0T: 3321.0 N·m | Nut Mass: 2.25 kg | Shaft Mass: 21.23 kg/m | ||
| SLS70 | THK SLS70, D=100mm L=110mm, CT=2986.3N·m C0T=3474.7N·m | THK | Model: SLS70 | Type: SLS Ball Spline Nut, Standard | OD D: 100 mm | Length L: 110 mm | Keyway Width b: 18 mm (H8) | Keyway Depth t: 6.0 mm | Dynamic Load C: 89.7 kN | Static Load C0: 92.5 kN | Dynamic Torque CT: 2986.3 N·m | Static Torque C0T: 3474.7 N·m | Nut Mass: 2.13 kg | Shaft Mass: 28.57 kg/m | ||
| SLS80 | THK SLS80, D=120mm L=140mm, CT=4664.6N·m C0T=5477.4N·m | THK | Model: SLS80 | Type: SLS Ball Spline Nut, Standard | OD D: 120 mm | Length L: 140 mm | Keyway Width b: 20 mm (H8) | Keyway Depth t: 7.0 mm | Dynamic Load C: 122.8 kN | Static Load C0: 127.7 kN | Dynamic Torque CT: 4664.6 N·m | Static Torque C0T: 5477.4 N·m | Nut Mass: 4.22 kg | Shaft Mass: 37.49 kg/m | ||
| SLS100 | THK SLS100, D=140mm L=160mm, CT=8922.3N·m C0T=10211.6N·m | THK | Model: SLS100 | Type: SLS Ball Spline Nut, Standard | OD D: 140 mm | Length L: 160 mm | Keyway Width b: 28 mm (H8) | Keyway Depth t: 9.0 mm | Dynamic Load C: 188.2 kN | Static Load C0: 190.7 kN | Dynamic Torque CT: 8922.3 N·m | Static Torque C0T: 10211.6 N·m | Nut Mass: 5.2 kg | Shaft Mass: 58.97 kg/m | ||
| SLS25L | THK SLS25L, D=37mm L=70mm, CT=261.9N·m C0T=394.5N·m | THK | Model: SLS25L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 37 mm | Length L: 70 mm | Keyway Width b: 5 mm (H8) | Keyway Depth t: 3.0 mm | Dynamic Load C: 21.7 kN | Static Load C0: 29.0 kN | Dynamic Torque CT: 261.9 N·m | Static Torque C0T: 394.5 N·m | Nut Mass: 0.18 kg | Shaft Mass: 3.51 kg/m | ||
| SLS30L | THK SLS30L, D=45mm L=80mm, CT=416.4N·m C0T=616.0N·m | THK | Model: SLS30L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 45 mm | Length L: 80 mm | Keyway Width b: 7 mm (H8) | Keyway Depth t: 4.0 mm | Dynamic Load C: 28.9 kN | Static Load C0: 37.8 kN | Dynamic Torque CT: 416.4 N·m | Static Torque C0T: 616.0 N·m | Nut Mass: 0.34 kg | Shaft Mass: 5.05 kg/m | ||
| SLS40L | THK SLS40L, D=60mm L=100mm, CT=890.0N·m C0T=1277.3N·m | THK | Model: SLS40L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 60 mm | Length L: 100 mm | Keyway Width b: 10 mm (H8) | Keyway Depth t: 4.5 mm | Dynamic Load C: 46.5 kN | Static Load C0: 59.1 kN | Dynamic Torque CT: 890.0 N·m | Static Torque C0T: 1277.3 N·m | Nut Mass: 0.79 kg | Shaft Mass: 9.18 kg/m | ||
| SLS50L | THK SLS50L, D=75mm L=112mm, CT=1571.2N·m C0T=2165.2N·m | THK | Model: SLS50L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 75 mm | Length L: 112 mm | Keyway Width b: 15 mm (H8) | Keyway Depth t: 5.0 mm | Dynamic Load C: 65.9 kN | Static Load C0: 80.4 kN | Dynamic Torque CT: 1571.2 N·m | Static Torque C0T: 2165.2 N·m | Nut Mass: 1.47 kg | Shaft Mass: 14.45 kg/m | ||
| SLS60L | THK SLS60L, D=90mm L=140mm, CT=2723.2N·m C0T=3736.2N·m | THK | Model: SLS60L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 90 mm | Length L: 140 mm | Keyway Width b: 18 mm (H8) | Keyway Depth t: 6.0 mm | Dynamic Load C: 95.3 kN | Static Load C0: 115.8 kN | Dynamic Torque CT: 2723.2 N·m | Static Torque C0T: 3736.2 N·m | Nut Mass: 2.5 kg | Shaft Mass: 21.23 kg/m | ||
| SLS70L | THK SLS70L, D=100mm L=135mm, CT=3708.4N·m C0T=4738.2N·m | THK | Model: SLS70L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 100 mm | Length L: 135 mm | Keyway Width b: 18 mm (H8) | Keyway Depth t: 6.0 mm | Dynamic Load C: 111.4 kN | Static Load C0: 126.1 kN | Dynamic Torque CT: 3708.4 N·m | Static Torque C0T: 4738.2 N·m | Nut Mass: 2.71 kg | Shaft Mass: 28.57 kg/m | ||
| SLS80L | THK SLS80L, D=120mm L=155mm, CT=5195.3N·m C0T=6390.4N·m | THK | Model: SLS80L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 120 mm | Length L: 155 mm | Keyway Width b: 20 mm (H8) | Keyway Depth t: 7.0 mm | Dynamic Load C: 136.8 kN | Static Load C0: 148.9 kN | Dynamic Torque CT: 5195.3 N·m | Static Torque C0T: 6390.4 N·m | Nut Mass: 4.77 kg | Shaft Mass: 37.49 kg/m | ||
| SLS100L | THK SLS100L, D=140mm L=185mm, CT=10424.4N·m C0T=12764.6N·m | THK | Model: SLS100L | Type: SLS Ball Spline Nut, Long (SLS-L) | OD D: 140 mm | Length L: 185 mm | Keyway Width b: 28 mm (H8) | Keyway Depth t: 9.0 mm | Dynamic Load C: 219.8 kN | Static Load C0: 238.4 kN | Dynamic Torque CT: 10424.4 N·m | Static Torque C0T: 12764.6 N·m | Nut Mass: 6.22 kg | Shaft Mass: 58.97 kg/m |
