Medium Torque Type Ball Spline Medium Torque Model LF Model 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.
basic load ratings(kN) : Basic dynamic load rating 1.18 to 136.2 / Basic static load rating 2.16 to 195
Spline shaft diameter (mm) :
6,8,10,13,16,20,25,30,40,50,60,80,100

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Products | Contents |
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LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
Actuator | Movable part mass, etc. |
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Contamination Protection
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- Contamination Protection
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- QZ Lubricator
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Notes on dimensional table
- Note) ○: indicates model numbers for which high temperature types are available (with metal retainer; service temperature: up to 100℃).
- Note) ** MA.1 indicates the permissible moment value in the axial direction when a single spline nut is used, as shown in the figure above.
**MA.2 indicates the permissible moment value in the axial direction when two spline nuts in close contact with each other are used, as shown in the figure above.
For details on the maximum lengths of ball spline shafts by accuracy, please see Maximum Manufacturing Length by Accuracy.
Model Number Coding

(*1) See Contamination Protection
(*2) See Selecting a Preload
(*3) See Accuracy Standard
(*4) See Spline Shaft
(*5) See Maximum Manufacturing Length by Accuracy
THK Online Services
Member-Exclusive Content
These contents can be accessed
after registering as a member.
Benefit 1: Useful features
- Easy product comparisonsHighlight feature
- Save items for laterreview Favorites feature
Benefit 2: Exclusive content
Products | Contents |
---|---|
LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
Actuator | Movable part mass, etc. |
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