Precision Caged Ball Screw Compact Type SDA-V/SDA-VZ Models SDA-V / SDA-VZ 28 / 31 / 32 / 36 / 38

A ball screw with newly developed circulation components that give it an ideal ball circulation structure. (Maximum DN value: 160,000)The nut dimensions conform to DIN standards (DIN69051). Furthermore, the use of the newly developed thin film seal reduces the length of the nut, achieving a more compact design for the device. This is the full-ball type version of the Model SDA-V. (Maximum DN value: 130,000)

DN value(Models SDA-V / SDA-VZ) : 160000 / 130000
Screwshaftdiameter(mm) : 28,31,32,36,38

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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 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

Dimensions of Each Model with an Option Attached
Shaft_end_machining

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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.
It is not possible to chamfer both ends of the screw shaft. When designing your system this way, contact THK.

The rigidity values (K) in the table represent spring constants, each obtained from the load and the elastic deformation under an axial load equal to 30% of the basic axial dynamic load rating (Ca).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 rigidity value (K) in the table as the actual value.If the axial load (Fa) is not 0.3 Ca, the rigidity value (K_N) is obtained from the following equation.

Model number coding

(*1) See Contamination protection accessory symbol(*2) See Axial Clearance(*3) 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.

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Model No.	Optimal Product Selection Tool*	Life Calculator*	CAD Download*	Catalog Download	Manual Download
SDA 2806V-5
SDA 3110V-5
SDA 3112V-5
SDA 3116V-5
SDA 3120V-5
SDA 3132V-2
SDA 3205V-4
SDA 3210V-5
SDA 3610V-5
SDA 3612V-5
SDA 3616V-5
SDA 3620V-5
SDA 3636V-2
SDA 3810V-5
SDA 3812V-5
SDA 3816V-5
SDA 3820V-5
SDA 3825V-4
SDA 3830V-3
SDA 3840V-2

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