Precision Caged Ball Screw Model SBK Model SBK 36 / 40 / 50 / 55
As a result of adopting the offset preloading method, which shifts two rows of grooves of the ball screw nut, a compact structure is achieved.
DN value(36,40,50 / 55) : 210000 / 160000
Screwshaftdiameter(mm) :
36,40,50,55
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| 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. |
Optional
Contamination Protection
- Contamination Protection Seal for Ball Screws Labyrinth seal
- Contamination Protection Seal for Ball Screws Brush seal
- Wiper Ring
- Canvas seal
- Thin Film Seal
- Dust Cover for Ball Screws
Lubrication
- QZ Lubricator
Rustprevention
- Surface Treatment
Other
- Dimensions of Each Model with an Option Attached
- Shaft_end_machining
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- Detailed information
- Dimensional drawing/Dimensional table
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Detailed information
Dimensional drawing/Dimensional table
Notes on dimensional table
- Note) With model SBK, the raising of both ends of the thread groove is not available. When designing your system this way,contact THK.
- Note) The rigidity values in the table represent spring constants, each obtained from the load and the elastic deformation when providing a preload equal to 10% of the basic axial dynamic load rating (Ca) and applying an axial load three times greater than the pre-load.These values do not include the rigidity of the components related to mounting the ball screw nut. Therefore, it is normally appropriate to regard roughly 80% of the value in the table as the actual value.If the applied preload (Fa0) is not 0.1 Ca, the rigidity value (KN) is obtained from the following equation.
Model number coding
(*1) See Seal symbol(*2) See Accuracy of the Ball Screw
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. |
Optional
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Designer is the former optimal product selection tool
You can download 2D/3D CAD by clicking on the icon and selecting from the CAD format.
| Model No. | Optimal Product Selection Tool* | Life Calculator* | CAD Download* | Catalog Download | Manual Download |
|---|---|---|---|---|---|
| SBK 3620-7.6 |  |  |  |  |  |
| SBK 3636-5.6 | | | |||
| SBK 4020-7.6 | | | |||
| SBK 4030-7.6 | | | |||
| SBK 4040-5.6 | | | |||
| SBK 5020-7.6 | | | |||
| SBK 5030-7.6 | | | |||
| SBK 5036-7.6 | | | |||
| SBK 5050-5.6 | | | |||
| SBK 5520-7.6 | | | |||
| SBK 5530-7.6 | | | |||
| SBK 5536-7.6 | | |
*marks are not available for guest members.
