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.

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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 5016VA-5 Ball Screw
50
16
51.75
82
118
189
92
72.3
158.1
68.9
166.2
SDAN 5016V-5 Ball Screw
50
16
51
75
110
189(187)
85
71.9
156.6
68.4
163.7
SDAN 5012VA-5 Ball Screw
50
12
51.75
82
118
158
92
72.4
158.1
69
165.9
SDAN 5012V-5 Ball Screw
50
12
51
75
110
158(156)
85
72.0
155.2
68.5
163.3
SDAN 5010VA-5 Ball Screw
50
10
51.75
82
118
135
92
72.5
158.1
69
165.7
SDAN 5010V-5 Ball Screw
50
10
51
75
110
135(133)
85
72.0
155.2
68.6
163.2
SDAN 4520VA-5 Ball Screw
45
20
46.75
75
110
232
85
68.9
143.6
65.6
150
SDAN 4520V-5 Ball Screw
45
20
46
70
105
232(230)
80
68.4
140.7
65.1
147.5
SDAN 4516V-5 Ball Screw
45
16
46
70
105
189(187)
80
68.5
140.7
65.3
147.0
SDAN 3820V-5 Ball Screw
38
20
39
63
93
232(230)
70
63.0
119.1
60.0
124.3
SDAN 4008VX-5 Ball Screw
40
8
41.25
61
91
111
68
̶
̶
42.2
99.4
SDAN 4010VA-5 Ball Screw
40
10
41.75
70
100
135
75
65.6
126.4
62.5
132.3
SDAN 4012VA-5 Ball Screw
40
12
41.75
70
100
158
75
65.5
126.4
62.4
132.5
SDAN 4016VA-5 Ball Screw
40
16
41.75
70
100
189
75
65.4
126.4
62.3
132.9
SDAN 4020VA-5 Ball Screw
40
20
41.75
70
100
232
75
65.2
127.7
62.1
133.4
SDAN 4510V-5 Ball Screw
45
10
46
70
105
135(133)
80
68.7
139.4
65.4
146.5
SDAN 4510VA-5 Ball Screw
45
10
46.75
75
110
135
85
69.2
142.2
65.9
149
SDAN 4512V-5 Ball Screw
45
12
46
70
105
158(156)
80
68.6
139.4
65.4
146.7
SDAN 4512VA-5 Ball Screw
45
12
46.75
75
110
158
85
69.2
142.2
65.9
149.2
SDAN 3112V-5 Ball Screw
31
12
32
56
86
158(156)
65
57.0
94.7
54.3
99.9
SDAN 3110V-5 Ball Screw
31
10
32
56
86
135(133)
65
57.1
94.7
54.4
99.7
SDAN 3116V-5 Ball Screw
31
16
32
56
86
189(187)
65
56.8
96.0
54.1
100.5
SDAN 3120V-5 Ball Screw
31
20
32
56
86
232(230)
65
56.6
96.0
53.9
101.2
SDAN 3205V-4 Ball Screw
32
5
32.75
50
80
62
62
18.8
38.5
17.9
41.7