Full-Ball Type Precision Ball Screw Large Lead Model BLK Model BLK
With model BLK, the shaft diameter is equal to the lead dimension. Model WGF has a lead dimension 1.5 to 3 times longer than the shaft diameter.
DN value : 70000
Screw shaft diameter (mm) :
08,15,16,20,25,32,36,40,50

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THK Online Services
Member-Exclusive Content
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Benefit 1: Useful features
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
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
- Additional Machining for Shaft Ends
Display result
- Detailed information
- Dimensional drawing/Dimensional table
- Optional
Detailed information
Dimensional drawing/Dimensional table


Notes on dimensional table
-
Note) The Model BLK can be equipped with a brush seal depending on the model number. Contact THK if you would like touse one.
Note) The overall length of the nut will increase when equipping the QZ lubricating device. See Dimensions of Each Model with an Option Attached for further details.
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
No option tag has been selected.
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You can download 2D/3D CAD by clicking on the icon and selecting from the CAD format.
Model No. | Designer* | Life Calculator* | CAD Download* |
Catalog Download |
Manual Download |
---|---|---|---|---|---|
BLK 0808-3.2 | |||||
BLK 1510-5.6 | |||||
BLK 1616-2.8 | |||||
BLK 1616-3.6 | |||||
BLK 2020-2.8 | |||||
BLK 2020-3.6 | |||||
BLK 2525-2.8 | |||||
BLK 2525-3.6 | |||||
BLK 3232-2.8 | |||||
BLK 3232-3.6 | |||||
BLK 3620-5.6 | |||||
BLK 3624-5.6 | |||||
BLK 3636-2.8 | |||||
BLK 3636-3.6 | |||||
BLK 4040-2.8 | |||||
BLK 4040-3.6 | |||||
BLK 5050-2.8 | |||||
BLK 5050-3.6 |
*marks are not available for guest members.