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Ball Splines
THK
[THK] — LBR Ball Spline Nut (Center Flange, High-Torque)
Family ID: THK-LBR-BALL-SPLINE
THK LBR-type Ball Spline Nut with center flange for high moment load applications such as industrial robot arms. High-temperature option (metal retainer, up to 100°C) and felt seal option available on most sizes. Sizes: LBR15–LBR100.
10 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| LBR15 | THK LBR15, D=25mm L=40mm center flange, CT=30.4N·m C0T=74.5N·m | THK | Model: LBR15 | Type: LBR Ball Spline Nut, Center Flange | OD D: 25 mm | Spigot OD D3: 25.35 mm | Length L: 40 mm | Flange OD D1: 45.4 mm | Flange Height H: 9 mm | E: 15.5 mm | Dynamic Torque CT: 30.4 N·m | Static Torque C0T: 74.5 N·m | Dynamic Load C: 4.4 kN | Static Load C0: 8.4 kN | Nut Mass: 0.14 kg | Shaft Mass: 1.0 kg/m | Options: Standard only | ||
| LBR20 | THK LBR20, D=30mm L=60mm center flange, CT=90.2N·m C0T=213.0N·m | THK | Model: LBR20 | Type: LBR Ball Spline Nut, Center Flange | OD D: 30 mm | Spigot OD D3: 30.35 mm | Length L: 60 mm | Flange OD D1: 56.4 mm | Flange Height H: 12 mm | E: 24.0 mm | Dynamic Torque CT: 90.2 N·m | Static Torque C0T: 213.0 N·m | Dynamic Load C: 9.4 kN | Static Load C0: 20.1 kN | Nut Mass: 0.33 kg | Shaft Mass: 1.8 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR25 | THK LBR25, D=40mm L=70mm center flange, CT=176.0N·m C0T=381.0N·m | THK | Model: LBR25 | Type: LBR Ball Spline Nut, Center Flange | OD D: 40 mm | Spigot OD D3: 40.35 mm | Length L: 70 mm | Flange OD D1: 70.4 mm | Flange Height H: 14 mm | E: 28.0 mm | Dynamic Torque CT: 176.0 N·m | Static Torque C0T: 381.0 N·m | Dynamic Load C: 14.9 kN | Static Load C0: 28.7 kN | Nut Mass: 0.54 kg | Shaft Mass: 2.7 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR30 | THK LBR30, D=45mm L=80mm center flange, CT=312.0N·m C0T=657.0N·m | THK | Model: LBR30 | Type: LBR Ball Spline Nut, Center Flange | OD D: 45 mm | Spigot OD D3: 45.4 mm | Length L: 80 mm | Flange OD D1: 75.4 mm | Flange Height H: 16 mm | E: 32.0 mm | Dynamic Torque CT: 312.0 N·m | Static Torque C0T: 657.0 N·m | Dynamic Load C: 22.5 kN | Static Load C0: 41.4 kN | Nut Mass: 0.9 kg | Shaft Mass: 3.8 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR40 | THK LBR40, D=60mm L=100mm center flange, CT=696.0N·m C0T=1420.0N·m | THK | Model: LBR40 | Type: LBR Ball Spline Nut, Center Flange | OD D: 60 mm | Spigot OD D3: 60.4 mm | Length L: 100 mm | Flange OD D1: 96.4 mm | Flange Height H: 18 mm | E: 41.0 mm | Dynamic Torque CT: 696.0 N·m | Static Torque C0T: 1420.0 N·m | Dynamic Load C: 37.1 kN | Static Load C0: 66.9 kN | Nut Mass: 1.7 kg | Shaft Mass: 6.8 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR50 | THK LBR50, D=75mm L=112mm center flange, CT=1290.0N·m C0T=2500.0N·m | THK | Model: LBR50 | Type: LBR Ball Spline Nut, Center Flange | OD D: 75 mm | Spigot OD D3: 75.4 mm | Length L: 112 mm | Flange OD D1: 112.4 mm | Flange Height H: 20 mm | E: 46.0 mm | Dynamic Torque CT: 1290.0 N·m | Static Torque C0T: 2500.0 N·m | Dynamic Load C: 55.1 kN | Static Load C0: 94.1 kN | Nut Mass: 2.7 kg | Shaft Mass: 10.6 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR60 | THK LBR60, D=90mm L=127mm center flange, CT=1870.0N·m C0T=3830.0N·m | THK | Model: LBR60 | Type: LBR Ball Spline Nut, Center Flange | OD D: 90 mm | Spigot OD D3: 90.5 mm | Length L: 127 mm | Flange OD D1: 134.5 mm | Flange Height H: 22 mm | E: 52.5 mm | Dynamic Torque CT: 1870.0 N·m | Static Torque C0T: 3830.0 N·m | Dynamic Load C: 66.2 kN | Static Load C0: 121.0 kN | Nut Mass: 3.7 kg | Shaft Mass: 15.6 kg/m | Options: High-temp option (metal retainer, ≤100°C) | ||
| LBR70 | THK LBR70, D=95mm L=135mm center flange, CT=3000.0N·m C0T=6090.0N·m | THK | Model: LBR70 | Type: LBR Ball Spline Nut, Center Flange | OD D: 95 mm | Spigot OD D3: 95.6 mm | Length L: 135 mm | Flange OD D1: 140.6 mm | Flange Height H: 24 mm | E: 55.5 mm | Dynamic Torque CT: 3000.0 N·m | Static Torque C0T: 6090.0 N·m | Dynamic Load C: 90.8 kN | Static Load C0: 164.0 kN | Nut Mass: 6.0 kg | Shaft Mass: 21.3 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR85 | THK LBR85, D=120mm L=155mm center flange, CT=4740.0N·m C0T=9550.0N·m | THK | Model: LBR85 | Type: LBR Ball Spline Nut, Center Flange | OD D: 120 mm | Spigot OD D3: 120.6 mm | Length L: 155 mm | Flange OD D1: 170.6 mm | Flange Height H: 26 mm | E: 64.5 mm | Dynamic Torque CT: 4740.0 N·m | Static Torque C0T: 9550.0 N·m | Dynamic Load C: 119.0 kN | Static Load C0: 213.0 kN | Nut Mass: 8.3 kg | Shaft Mass: 32.0 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available | ||
| LBR100 | THK LBR100, D=140mm L=175mm center flange, CT=6460.0N·m C0T=14400.0N·m | THK | Model: LBR100 | Type: LBR Ball Spline Nut, Center Flange | OD D: 140 mm | Spigot OD D3: 140.6 mm | Length L: 175 mm | Flange OD D1: 198.6 mm | Flange Height H: 34 mm | E: 70.5 mm | Dynamic Torque CT: 6460.0 N·m | Static Torque C0T: 14400.0 N·m | Dynamic Load C: 137.0 kN | Static Load C0: 271.0 kN | Nut Mass: 14.2 kg | Shaft Mass: 45.0 kg/m | Options: High-temp option (metal retainer, ≤100°C); Felt seal option available |
