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.

LF
The spline nut can be attached to the housing via the flange, making assembly simple.
It is optimal for locations where the housing may be deformed if a keyway is machined on its surface, and where the housing width is small.
Since it allows a dowel pin to be driven into the flange, angular backlash occurring in the fitting can completely be eliminated.

LF 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
Flange diameter: 30 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. 2: 4.9 N-m
Static permissible moment MA.4. 3: 36.3 N-m

LF 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
Flange diameter: 32 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. 3: 5.9 N-m
Static permissible moment MA.4. 4: 44.1 N-m

LF 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
Flange diameter: 42 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. 4: 15.7 N-m
Static permissible moment MA.4. 5: 98 N-m

LF 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
Flange diameter: 44 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. 5: 19.6 N-m
Static permissible moment MA.4. 6: 138 N-m

LF 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
Flange diameter: 51 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. 6: 67.6 N-m
Static permissible moment MA.4. 7: 393 N-m

LF 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
Flange diameter: 58 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. 7: 118 N-m
Static permissible moment MA.4. 8: 700 N-m

LF 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
Flange diameter: 65 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. 8: 210 N-m
Static permissible moment MA.4. 9: 1140 N-m

LF 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
Flange diameter: 75 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. 9: 290 N-m
Static permissible moment MA.4. 10: 1710 N-m

LF 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
Flange diameter: 100 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. 10: 687 N-m
Static permissible moment MA.4. 11: 3760 N-m

LF 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
Flange diameter: 124 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. 11: 1340 N-m
Static permissible moment MA.4. 12: 7350 N-m


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

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