• THK LBGT Rotary Ball Spline with Gear and Thrust Race
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THK LBGT Rotary Ball Spline with Gear and Thrust Race

THK LBGT Rotary Ball Spline with Gear and Thrust Race

THK LBGT-type Rotary Ball Spline — gear on flange outer diameter with radial and thrust needle bearings plus additional thrust race.

Key features

  • Compact unit optimized for spline-nut-driven torque transmission
  • Helical and worm gear variants available on request
  • Sizes: LBGT20–LBGT85

Specifications

Type LBGT Rotary Ball Spline, Gear + Thrust Race Unit
LBGT20 THK LBGT20, D=30mm gear m=2.0 z=26 thrust race G=4mm | Model: LBGT20 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 30 mm | Length L: 60 mm | Gear OD D4: 47 mm | Gear Width L1: 20 mm | Thrust Race Width G: 4 mm | H: 12 mm | E: 24 mm | Gear Tip Circle D5: 56 mm | Gear PCD: 52 mm | Module m: 2.0 | Teeth z: 26 | 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 | Static Moment MA: 103.0 N·m | Unit Mass: 0.67 kg | Shaft Mass: 1.8 kg/m | Options: Felt seal option available
LBGT25 THK LBGT25, D=40mm gear m=2.5 z=26 thrust race G=5mm | Model: LBGT25 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 40 mm | Length L: 70 mm | Gear OD D4: 60 mm | Gear Width L1: 23 mm | Thrust Race Width G: 5 mm | H: 14 mm | E: 28 mm | Gear Tip Circle D5: 70 mm | Gear PCD: 65 mm | Module m: 2.5 | Teeth z: 26 | 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 | Static Moment MA: 171.0 N·m | Unit Mass: 1.5 kg | Shaft Mass: 2.7 kg/m | Options: Felt seal option available
LBGT30 THK LBGT30, D=45mm gear m=2.5 z=28 thrust race G=5mm | Model: LBGT30 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 45 mm | Length L: 80 mm | Gear OD D4: 65 mm | Gear Width L1: 27 mm | Thrust Race Width G: 5 mm | H: 16 mm | E: 32 mm | Gear Tip Circle D5: 75 mm | Gear PCD: 70 mm | Module m: 2.5 | Teeth z: 28 | 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 | Static Moment MA: 295.0 N·m | Unit Mass: 2.2 kg | Shaft Mass: 3.8 kg/m | Options: Felt seal option available
LBGT40 THK LBGT40, D=60mm gear m=3.0 z=30 thrust race G=8mm | Model: LBGT40 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 60 mm | Length L: 100 mm | Gear OD D4: 85 mm | Gear Width L1: 31 mm | Thrust Race Width G: 8 mm | H: 18 mm | E: 41 mm | Gear Tip Circle D5: 96 mm | Gear PCD: 90 mm | Module m: 3.0 | Teeth z: 30 | 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 | Static Moment MA: 586.0 N·m | Unit Mass: 3.3 kg | Shaft Mass: 6.8 kg/m | Options: Felt seal option available
LBGT50 THK LBGT50, D=75mm gear m=3.0 z=35 thrust race G=10mm | Model: LBGT50 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 75 mm | Length L: 112 mm | Gear OD D4: 100 mm | Gear Width L1: 32 mm | Thrust Race Width G: 10 mm | H: 20 mm | E: 46 mm | Gear Tip Circle D5: 111 mm | Gear PCD: 105 mm | Module m: 3.0 | Teeth z: 35 | 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 | Static Moment MA: 941.0 N·m | Unit Mass: 4.8 kg | Shaft Mass: 10.6 kg/m | Options: Felt seal option available
LBGT60 THK LBGT60, D=90mm gear m=3.5 z=36 thrust race G=12mm | Model: LBGT60 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 90 mm | Length L: 127 mm | Gear OD D4: 120 mm | Gear Width L1: 38 mm | Thrust Race Width G: 12 mm | H: 22 mm | E: 52.5 mm | Gear Tip Circle D5: 133 mm | Gear PCD: 126 mm | Module m: 3.5 | Teeth z: 36 | 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 | Static Moment MA: 1300.0 N·m | Unit Mass: 7.2 kg | Shaft Mass: 15.6 kg/m | Options: Standard only
LBGT85 THK LBGT85, D=120mm gear m=4.0 z=40 thrust race G=16mm | Model: LBGT85 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 120 mm | Length L: 155 mm | Gear OD D4: 150 mm | Gear Width L1: 40 mm | Thrust Race Width G: 16 mm | H: 26 mm | E: 64.5 mm | Gear Tip Circle D5: 168 mm | Gear PCD: 160 mm | Module m: 4.0 | Teeth z: 40 | 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 | Static Moment MA: 3180.0 N·m | Unit Mass: 13.4 kg | Shaft Mass: 32.0 kg/m | Options: Felt seal option available
Ball SplinesTHK
7 product codes available in this family
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THK LBGT Rotary Ball Spline with Gear and Thrust Race

Brand THK·Ball Splines

Available part numbers (7)

LBGT20, LBGT25, LBGT30, LBGT40, LBGT50, LBGT60, LBGT85

How to order

Send the THK 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.

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Product codes & specifications
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Product codeSpec
LBGT20THK LBGT20, D=30mm gear m=2.0 z=26 thrust race G=4mm | Model: LBGT20 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 30 mm | Length L: 60 mm | Gear OD D4: 47 mm | Gear Width L1: 20 mm | Thrust Race Width G: 4 mm | H: 12 mm | E: 24 mm | Gear Tip Circle D5: 56 mm | Gear PCD: 52 mm | Module m: 2.0 | Teeth z: 26 | 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 | Static Moment MA: 103.0 N·m | Unit Mass: 0.67 kg | Shaft Mass: 1.8 kg/m | Options: Felt seal option available
LBGT25THK LBGT25, D=40mm gear m=2.5 z=26 thrust race G=5mm | Model: LBGT25 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 40 mm | Length L: 70 mm | Gear OD D4: 60 mm | Gear Width L1: 23 mm | Thrust Race Width G: 5 mm | H: 14 mm | E: 28 mm | Gear Tip Circle D5: 70 mm | Gear PCD: 65 mm | Module m: 2.5 | Teeth z: 26 | 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 | Static Moment MA: 171.0 N·m | Unit Mass: 1.5 kg | Shaft Mass: 2.7 kg/m | Options: Felt seal option available
LBGT30THK LBGT30, D=45mm gear m=2.5 z=28 thrust race G=5mm | Model: LBGT30 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 45 mm | Length L: 80 mm | Gear OD D4: 65 mm | Gear Width L1: 27 mm | Thrust Race Width G: 5 mm | H: 16 mm | E: 32 mm | Gear Tip Circle D5: 75 mm | Gear PCD: 70 mm | Module m: 2.5 | Teeth z: 28 | 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 | Static Moment MA: 295.0 N·m | Unit Mass: 2.2 kg | Shaft Mass: 3.8 kg/m | Options: Felt seal option available
LBGT40THK LBGT40, D=60mm gear m=3.0 z=30 thrust race G=8mm | Model: LBGT40 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 60 mm | Length L: 100 mm | Gear OD D4: 85 mm | Gear Width L1: 31 mm | Thrust Race Width G: 8 mm | H: 18 mm | E: 41 mm | Gear Tip Circle D5: 96 mm | Gear PCD: 90 mm | Module m: 3.0 | Teeth z: 30 | 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 | Static Moment MA: 586.0 N·m | Unit Mass: 3.3 kg | Shaft Mass: 6.8 kg/m | Options: Felt seal option available
LBGT50THK LBGT50, D=75mm gear m=3.0 z=35 thrust race G=10mm | Model: LBGT50 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 75 mm | Length L: 112 mm | Gear OD D4: 100 mm | Gear Width L1: 32 mm | Thrust Race Width G: 10 mm | H: 20 mm | E: 46 mm | Gear Tip Circle D5: 111 mm | Gear PCD: 105 mm | Module m: 3.0 | Teeth z: 35 | 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 | Static Moment MA: 941.0 N·m | Unit Mass: 4.8 kg | Shaft Mass: 10.6 kg/m | Options: Felt seal option available
LBGT60THK LBGT60, D=90mm gear m=3.5 z=36 thrust race G=12mm | Model: LBGT60 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 90 mm | Length L: 127 mm | Gear OD D4: 120 mm | Gear Width L1: 38 mm | Thrust Race Width G: 12 mm | H: 22 mm | E: 52.5 mm | Gear Tip Circle D5: 133 mm | Gear PCD: 126 mm | Module m: 3.5 | Teeth z: 36 | 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 | Static Moment MA: 1300.0 N·m | Unit Mass: 7.2 kg | Shaft Mass: 15.6 kg/m | Options: Standard only
LBGT85THK LBGT85, D=120mm gear m=4.0 z=40 thrust race G=16mm | Model: LBGT85 | Type: LBGT Rotary Ball Spline, Gear + Thrust Race Unit | Nut OD D: 120 mm | Length L: 155 mm | Gear OD D4: 150 mm | Gear Width L1: 40 mm | Thrust Race Width G: 16 mm | H: 26 mm | E: 64.5 mm | Gear Tip Circle D5: 168 mm | Gear PCD: 160 mm | Module m: 4.0 | Teeth z: 40 | 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 | Static Moment MA: 3180.0 N·m | Unit Mass: 13.4 kg | Shaft Mass: 32.0 kg/m | Options: Felt seal option available

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