Medium Torque Type Ball Spline Compact Model LF-X
The spline nut can be bolted to the housing via the flange, making assembly simple. It is suited for locations where the housing may be deformed if a keyway is machined on its surface, and where the housing is narrow. Models LF3X to LF6X are made of stainless steel, which has high corrosion resistance.
This type uses an elongated nut with the same outer diameter as the Model LF-X. It is suitable for moment loads or torque and overhang loads that exceed those tolerated by the Model LF-X. Models LF5XL and LF6XL are made of stainless steel, which has high corrosion resistance.
Models: LF5XL, LF6XL, LF8XL
Spline shaft diameter (mm) : 3,4,5,6,8,10,13,16,20,25,30
Types
Highlight feature tags
- Compact
- Medium torque type
- Flanged type
- Solid spline shaft
- Hollow spline shaft
- Compact
- Medium torque type
- Flanged type
- Solid spline shaft
- Hollow spline shaft
basic load ratings(kN) : Basic dynamic load rating 0.42 to 20.8 / Basic static load rating 0.7 to 34.0
Spline shaft diameter (mm) :
3,4,5,6,8,10,13,16,20,25,30
Features
Compact Nut Design
The nut is more compact than the previous Model LT/LF thanks to the new circulation structure.
The outer diameter is up to 20% more compact than previous THK products.
This makes it possible to design a more compact machine core.
|
Shaft |
Outer diameter |
Overall length |
||
|
Model LT-X |
Model LT |
Model LT-X |
Model LT |
|
| 3(3D) | 6(7) | - | 10 | - |
|---|---|---|---|---|
| 4 | 8 | 10 | 12 | 16 |
| 5 | 10 | 12 | 13.6 | 20 |
| 6 | 12 | 14 | 17.6 | 25 |
| 8 | 15 | 16 | 23.8 | 25 |
| 10 | 19 | 21 | 30.8 | 33 |
| 13 | 23 | 24 | 32.4 | 36 |
| 16 | 28 | 31 | 46.4 | 50 |
| 20 | 32 | 35 | 59 | 63 |
| 25 | 40 | 42 | 67 | 71 |
| 30 | 45 | 47 | 75.6 | 80 |
High-Speed Performance
The new circulation structure optimizes ball circulation, enabling high-speed operations.
Test result: Runs 10,000 km without abnormalities
|
Item |
Description |
|
Model No. |
LT20X |
|---|---|
|
Speed |
2m/s |
|
Acceleration |
49m/s2 |
|
Lubricant |
Lithium soap-based grease (AFB-LF Grease) |
|
Stroke |
650mm |
|
Orientation |
Horizontal |
Smooth Motion
Sliding resistance fluctuates less than that of the previous Model LT/LF.
|
Item |
Description |
|
Model No. |
LT16/LT16X |
|---|---|
|
Speed |
10mm/s |
|
Lubricant |
Lithium soap-based grease (AFB-LF Grease) |
|
Orientation |
Horizontal |
Option: QZ Lubricator
The QZ Lubricator is a lubricator attached to both ends of the spline nut. The QZ Lubricator feeds the right amount of lubricant to the raceway on the spline shaft. This allows an oil film to be continuously formed between the rolling element and the raceway, and it drastically extends the lubrication maintenance interval.
Detailed information for each model number
Dimensional drawing/Dimensional table
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. |
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. |
