Ball Spline

Medium Torque

The Ball Spline is a rolling guide spline bearing. This is an innovative product with a ball rolling on a groove connected to the shaft, realizing allowable loads greater than with linear bushing and enabling torque transmission while making linear movements.

This Ball Spline has a large load capacity in the radial and torque directions since the spline shaft has 2 to 3 crests on the circumference, each held by 2 rows (4 or 6 rows in total) of balls under a load in order to reasonably provide a preload.

Features of this product are:
- Large load capacity
- No angular backlash
- High rigidity
- Ball retaining type

Model number
LT, LF.

LT
The most compact type with a straight cylindrical spline nut. When transmitting a torque, a key is driven into the body.
LT 4
Spline Nut Outer diameter: 10 mm
Spline Nut Diameter Tolerance : –0.009 mm
Spline Nut Length: 16 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 0.59 N-m
Basic torque rating Static rating: 0.78 N-m
Radial Dynamic rating: 0.44 kN
Radial Static rating: 0.61 kN
Static permissible moment MA.4. 3: 0.88 N-m
Static permissible moment MA.4. 4: 6.4 N-m

LT 5
Spline Nut Outer diameter: 12 mm
Spline Nut Diameter Tolerance : –0.011 mm
Spline Nut Length: 20 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 0.88 N-m
Basic torque rating Static rating: 1.37 N-m
Radial Dynamic rating: 0.66 kN
Radial Static rating: 0.88 kN
Static permissible moment MA.4. 4: 1.5 N-m
Static permissible moment MA.4. 5: 11.6 N-m

LT 6
Spline Nut Outer diameter: 14 mm
Spline Nut Diameter Tolerance : –0.011 mm
Spline Nut Length: 25 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 0.98 N-m
Basic torque rating Static rating: 1.96 N-m
Radial Dynamic rating: 1.18 kN
Radial Static rating: 2.16 kN
Static permissible moment MA.4. 5: 4.9 N-m
Static permissible moment MA.4. 6: 36.3 N-m

LT 8
Spline Nut Outer diameter: 16 mm
Spline Nut Diameter Tolerance : –0.011 mm
Spline Nut Length: 25 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 1.96 N-m
Basic torque rating Static rating: 2.94 N-m
Radial Dynamic rating: 1.47 kN
Radial Static rating: 2.55 kN
Static permissible moment MA.4. 6: 5.9 N-m
Static permissible moment MA.4. 7: 44.1 N-m

LT 10
Spline Nut Outer diameter: 21 mm
Spline Nut Diameter Tolerance : –0.013 mm
Spline Nut Length: 33 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 3.92 N-m
Basic torque rating Static rating: 7.84 N-m
Radial Dynamic rating: 2.84 kN
Radial Static rating: 4.9 kN
Static permissible moment MA.4. 7: 15.7 N-m
Static permissible moment MA.4. 8: 98 N-m

LT 13
Spline Nut Outer diameter: 24 mm
Spline Nut Diameter Tolerance : –0.013 mm
Spline Nut Length: 36 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 5.88 N-m
Basic torque rating Static rating: 10.8 N-m
Radial Dynamic rating: 3.53 kN
Radial Static rating: 5.78 kN
Static permissible moment MA.4. 8: 19.6 N-m
Static permissible moment MA.4. 9: 138 N-m

LT 16
Spline Nut Outer diameter: 31 mm
Spline Nut Diameter Tolerance : –0.013 mm
Spline Nut Length: 50 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 31.4 N-m
Basic torque rating Static rating: 34.3 N-m
Radial Dynamic rating: 7.06 kN
Radial Static rating: 12.6 kN
Static permissible moment MA.4. 9: 67.6 N-m
Static permissible moment MA.4. 10: 393 N-m

LT 20
Spline Nut Outer diameter: 35 mm
Spline Nut Diameter Tolerance : –0.016 mm
Spline Nut Length: 63 mm
Spline Nut Length Tolerance: –0.2 mm
Basic torque rating Dynamic rating: 56.9 N-m
Basic torque rating Static rating: 55.9 N-m
Radial Dynamic rating: 10.2 kN
Radial Static rating: 17.8 kN
Static permissible moment MA.4. 10: 118 N-m
Static permissible moment MA.4. 11: 700 N-m

LT 25
Spline Nut Outer diameter: 42 mm
Spline Nut Diameter Tolerance : –0.016 mm
Spline Nut Length: 71 mm
Spline Nut Length Tolerance: –0.3 mm
Basic torque rating Dynamic rating: 105 N-m
Basic torque rating Static rating: 103 N-m
Radial Dynamic rating: 15.2 kN
Radial Static rating: 25.8 kN
Static permissible moment MA.4. 11: 210 N-m
Static permissible moment MA.4. 12: 1140 N-m

LT 30
Spline Nut Outer diameter: 47 mm
Spline Nut Diameter Tolerance : –0.016 mm
Spline Nut Length: 80 mm
Spline Nut Length Tolerance: –0.3 mm
Basic torque rating Dynamic rating: 171 N-m
Basic torque rating Static rating: 148 N-m
Radial Dynamic rating: 20.5 kN
Radial Static rating: 34 kN
Static permissible moment MA.4. 12: 290 N-m
Static permissible moment MA.4. 13: 1710 N-m

LT 40
Spline Nut Outer diameter: 64 mm
Spline Nut Diameter Tolerance : –0.019 mm
Spline Nut Length: 100 mm
Spline Nut Length Tolerance: –0.3 mm
Basic torque rating Dynamic rating: 419 N-m
Basic torque rating Static rating: 377 N-m
Radial Dynamic rating: 37.8 kN
Radial Static rating: 60.5 kN
Static permissible moment MA.4. 13: 687 N-m
Static permissible moment MA.4. 14: 3760 N-m

LT 50
Spline Nut Outer diameter: 80 mm
Spline Nut Diameter Tolerance : –0.019 mm
Spline Nut Length: 125 mm
Spline Nut Length Tolerance: –0.3 mm
Basic torque rating Dynamic rating: 842 N-m
Basic torque rating Static rating: 769 N-m
Radial Dynamic rating: 60.9 kN
Radial Static rating: 94.5 kN
Static permissible moment MA.4. 14: 1340 N-m
Static permissible moment MA.4. 15: 7350 N-m

LT 60
Spline Nut Outer diameter: 90 mm
Spline Nut Diameter Tolerance : –0.022 mm
Spline Nut Length: 140 mm
Spline Nut Length Tolerance: –0.4 mm
Basic torque rating Dynamic rating: 1220 N-m
Basic torque rating Static rating: 1040 N-m
Radial Dynamic rating: 73.5 kN
Radial Static rating: 111.7 kN
Static permissible moment MA.4. 15: 1600 N-m
Static permissible moment MA.4. 16: 9990 N-m

LT 80
Spline Nut Outer diameter: 120 mm
Spline Nut Diameter Tolerance : –0.022 mm
Spline Nut Length: 160 mm
Spline Nut Length Tolerance: –0.4 mm
Basic torque rating Dynamic rating: 2310 N-m
Basic torque rating Static rating: 1920 N-m
Radial Dynamic rating: 104.9 kN
Radial Static rating: 154.8 kN
Static permissible moment MA.4. 16: 2510 N-m
Static permissible moment MA.4. 17: 16000 N-m

LT 100
Spline Nut Outer diameter: 150 mm
Spline Nut Diameter Tolerance : –0.025 mm
Spline Nut Length: 185 mm
Spline Nut Length Tolerance: –0.4 mm
Basic torque rating Dynamic rating: 3730 N-m
Basic torque rating Static rating: 3010 N-m
Radial Dynamic rating: 136.2 kN
Radial Static rating: 195 kN
Static permissible moment MA.4. 17: 3400 N-m
Static permissible moment MA.4. 18: 24000 N-m

Automation and Robotics Distributor of Power Transmission & Guide Ball Spline THK Medium Torque LT

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