High Torque Type Ball Spline High Torque Model LBS Model LBS
The most compact type with a straight cylindrical spline nut. When transmitting a torque, a key is driven into the body.
basic load ratings(kN) : Basic dynamic load rating 4.4 to 126 / Basic static load rating 8.4 to 237
Spline shaft diameter (mm) :
15,20,25,30,40,50,70,85,100

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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) ○: Model numbers able to handle high temperatures (metal retainers: operating temperature up to 100°C)
Compatible model numbers: LBS20 to 100
●: Model numbers compatible with felt seals. Compatible model numbers: LBS20 to 100
Felt seals cannot be attached to ball spline models using metal retainers.
When equipping felt seals, the length dimensions of the nuts will change. - Note)** MA.1 indicates the permissible moment value in the axial direction when a single spline nut is used.
** MA.2 indicates the allowable moment load value in the axial direction when using two spline nuts in contact with each other.
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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