Change Nut Model DCMA Model DCMA
This model is capable of easily converting linear motion to rotary motion and vise versa with 70% efficiency.
Since the lead is large, it is optimal for building a fast feed mechanism with low speed rotation.
Dynamic permissible thrust F(N): 2300 to 28500
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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. |
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Dimensional drawing/Dimensional table
Notes on dimensional table
- Note1) The T symbol designated to the model numbers for change nuts (excluding models DCMB8T and DCMB12T) and screw shafts indicate rolled products. Refer to model number coding when selecting nut and shaft separately.
- Note2) Miniature Change Nut models DCMB8T and DCMB12T use oil-impregnated plastics.(outer diameter tolerance: special).
- Note3) The permissible dynamic torque (T) or permissible dynamic thrust (F) is the value at which the contact surface pressure on the screw tooth surface is 9.8 N/mm2. The maximum axial load (both when stopped and during operation) is set to the dynamic permissible thrust or below, and it must be selected while taking into consideration the safety factor of Table1 .
- Note4) The static permissible load (P) of the flange indicates the strength of the flange against the load as shown in the figure on the right.
- ☆: Indicates products for which the screw shaft is made to order.
- ★: Since the screw shaft and the change nut are build-to-order parts, they are sold only in a set consisting of the shaft and the nut.
Model number coding
Combination of change nut and screw shaft
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. |
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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 |
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| DCMA 15T |
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| DCMA 17T |
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| DCMA 20T |
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| DCMA 25T |
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| DCMA 30T |
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| DCMA 35T |
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| DCMA 40 |
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| DCMA 45 |
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| DCMA 50 |
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