Model SDAN-V-SDAN-VX SERIES

The THK Ball Screw SDAN V and SDAN VX SERIES represent a pinnacle of engineering precision, designed to meet the rigorous DIN standards for reliability and performance in demanding motion control applications. These compact, high-rigidity ball screws are engineered with a unique single-nut design that incorporates a large lead and optimized ball circulation path, ensuring smooth, efficient linear motion with minimal friction and exceptional positional accuracy. The SDAN VX variant further enhances this with preloaded nuts, delivering zero backlash and heightened stiffness for applications requiring ultra-precise positioning and resistance to vibration or external forces. Both series feature precision-ground shafts with hardened steel construction, offering high load capacity and durability, while their compact dimensions make them ideal for space-constrained installations in industrial machinery, automotive systems, and precision equipment.

Key technical features include compliance with DIN 69051 standards, ensuring interchangeability and consistent quality across global applications. The ball screws utilize a return tube-type ball circulation system, which minimizes noise and heat generation during high-speed operation, extending service life even under continuous use. With lead accuracy grades of C5 or higher, these components guarantee repeatable motion control, critical for tasks where micron-level precision is non-negotiable. The SDAN V SERIES supports standard precision needs, while the SDAN VX SERIES caters to high-precision scenarios with its adjustable preload mechanism, allowing fine-tuning to counteract wear over time and maintain performance integrity. Both models are available in a range of shaft diameters and leads, providing flexibility to match specific torque, speed, and load requirements without compromising on efficiency.

Performance advantages of the SDAN V and SDAN VX SERIES translate directly into operational benefits across diverse sectors. Their high efficiency, often exceeding 90%, reduces energy consumption and heat buildup, contributing to lower total cost of ownership. The robust design withstands heavy loads and moment forces, making them suitable for applications involving frequent starts, stops, or direction changes. In industrial machinery, these ball screws drive CNC machine tools, robotic arms, and automated assembly lines, where precision and reliability minimize downtime and enhance productivity. Automotive systems leverage their durability in electric power steering mechanisms, transmission testing equipment, and brake assembly robots, ensuring safety and compliance with stringent industry standards. For precision equipment, such as semiconductor manufacturing devices, medical imaging systems, or optical alignment instruments, the zero-backlash and high-rigidity characteristics enable sub-micron accuracy, critical for producing defect-free components and maintaining process consistency. By integrating THK’s SDAN V and SDAN VX SERIES, engineers achieve seamless motion control that boosts efficiency, accuracy, and longevity in even the most challenging environments.

MORE +
CLOSE +
Model No. Screw
shaft
outer diameter

d
Lead


Ph
Ball
centerto-center
diameter

dp

Outer
diameter

D
g6
Flange
diameter


D1
Overall
length

L1
(without the seal)



Tw
Basic load rating
With Retainer Full-Ball
Dynamic
rating

Ca
Static
rating

C0a
Dynamic
rating

Ca
Static
rating

C0a
mm mm mm mm mm mm mm kN kN kN kN
SDAN 6340VX-3 Ball Screw
63
40
65
95
135
269
100
55
129.2
SDAN 6330VX-4 Ball Screw
63
30
65
95
135
266
100
72.5
186.9
SDAN 6325VX-4 Ball Screw
63
25
65
95
135
237
100
72.6
186.3
SDAN 5040VA-3 Ball Screw
50
40
51.75
82
118
269
92
44.2
87.9
42.1
92
SDAN 5020V-5 Ball Screw
50
20
51
75
110
232(230)
85
71.7
156.6
68.3
164.2
SDAN 5020VA-5 Ball Screw
50
20
51.75
82
118
232
92
72.2
159.4
68.8
166.7
SDAN 5025V-4 Ball Screw
50
25
51
75
110
235
85
58.2
123.6
55.5
129.8
SDAN 5025VA-4 Ball Screw
50
25
51.75
82
118
235
92
58.6
125.1
55.8
131.7
SDAN 5030V-4 Ball Screw
50
30
51
75
110
265
85
58
117.5
55.3
122.6
SDAN 5030VA-4 Ball Screw
50
30
51.75
82
118
265
92
58.4
118.9
55.7
124.5
SDAN 5040V-3 Ball Screw
50
40
51
75
110
268
85
43.9
86.5
41.8
90.7
SDAN 5510VX-4 Ball Screw
55
10
56
80
118
115
92
58.2
141.6
SDAN 5510VAX-4 Ball Screw
55
10
56.75
82
120
115
94
58.5
143.6
SDAN 5512VAX-4 Ball Screw
55
12
56.75
82
120
134
94
58.5
143.7
SDAN 6320VX-4 Ball Screw
63
20
65
95
135
193
100
72.7
185.8
SDAN 6316VX-4 Ball Screw
63
16
65
95
135
158
100
72.8
185.5
SDAN 6312VX-4 Ball Screw
63
12
65
95
135
135
100
72.9
185.2
SDAN 6310VX-4 Ball Screw
63
10
64
90
125
115
95
61.6
162.7
SDAN 5520VAX-4 Ball Screw
55
20
56.75
82
120
192
94
58.3
144.3
SDAN 5520VX-4 Ball Screw
55
20
56
80
118
192
92
58
142.3
SDAN 5516VAX-4 Ball Screw
55
16
56.75
82
120
157
94
58.4
144
SDAN 5516VX-4 Ball Screw
55
16
56
80
118
157
92
58.1
142
SDAN 5512VX-4 Ball Screw
55
12
56
80
118
134
92
58.1
141.7
SDAN 4516VA-5 Ball Screw
45
16
46.75
75
110
189
85
69
142.2
65.8
149.5