Full-Ball Type Rolled Ball Screw Square Nut Model BNT Model BNT
Since mounting screw holes are drilled on the square ball screw nut, this model can compactly be mounted on the machine without a housing.
DN value : 50000
Screw shaft diameter (mm) :
14,16,18,20,25,28,32,36,45

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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 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.
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
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 |
---|---|---|---|---|---|
BNT 1404-3.6 | |||||
BNT 1405-2.6 | |||||
BNT 1605-2.6 | |||||
BNT 1808-3.6 | |||||
BNT 2005-2.6 | |||||
BNT 2010-2.6 | |||||
BNT 2505-2.6 | |||||
BNT 2510-5.3 | |||||
BNT 2806-2.6 | |||||
BNT 2806-5.3 | |||||
BNT 3210-2.6 | |||||
BNT 3210-5.3 | |||||
BNT 3610-2.6 | |||||
BNT 3610-5.3 | |||||
BNT 4512-5.3 |
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