Medium Torque Type Ball Spline Compact Model LFK-X
The flange is similar to the Model LF-X, but flattened in four places. Compared to models with round flanges, its core height is lower, and it allows for more compact designs. The Model LFK-XL is suitable for moment loads or torque and overhang loads that exceed those tolerated by the Model LFK-X.
Models LFK5X and 6X are made of stainless steel, which has high corrosion resistance.
Spline shaft diameter (mm) : 5,6,8,10,13,16,20,25,30

Types
Highlight feature tags
- Lightweight
- Compact
- Medium torque type
- Flanged type
- Solid spline shaft
- Hollow spline shaft

- Lightweight
- Compact
- Medium torque type
- Flanged type
- Solid spline shaft
- Hollow spline shaft
basic load ratings(kN) : Basic dynamic load rating 0.56 to 20.8 / Basic static load rating 0.85 to 34.0
Spline shaft diameter (mm) :
5,6,8,10,13,16,20,25,30
Features
Allows for Compact Designs
Models LFK-X and LFH-X are designed with a lower core height than the conventional Model LF-X. This allows for more compact mounting and peripheral components.

Weight Lighter
The modified flange shape makes the weight of the spline nut lighter than the round-flanged Model LF-X, reducing the weight of devices.

Detailed information for each model number
Dimensional drawing/Dimensional table
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Benefit 2: Exclusive content
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. |
Model Number Coding
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. |