Image may differ from product. See technical specification for details.

SDA

SDA ball screw can cope with high-speed applications of 5,000 min -1 (maximum DN value: 130,000), achieving low noise, comfortable operating sound and long-term maintenance-free operation.

Standard

GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh,DIN / VDEh

Screw shaft outer diameter (d)

15mm-50mm

Lead (Ph)

5mm-50mm

Ball center-to-center diameter (dp)

15.5mm-51mm

Material

Carbon Steel, Bearing Steel, Stainless Steel

Brand

QIBR/OEM/Neutral

Package

QIBR/Standard Industrial Package/OEM

Applications

Machine Tools, Precision Instruments, Semiconductor, Aerospace, Printing Machinery, Medical Devices

QIBR Model Selection

Filters

Ball center-to-center diameter (dp)

Lead (Ph)

No. of loaded circuits rows X turns

Screw shaft outer diameter (d)

Thread minor diameter (dc)

NO.	Product Number	Ball center-to-center diameter (dp)	Lead (Ph)	No. of loaded circuits rows X turns	Screw shaft outer diameter (d)	Thread minor diameter (dc)
1	SDA1505V-3	15.5 mm	5 mm	1X3	15 mm	13.1 mm
2	SDA1510V-3	15.5 mm	5 mm	1X3	15 mm	13.1 mm
3	SDA1520V-4	15.5 mm	20 mm	2X2	15 mm	13.1 mm
4	SDA1530V-4	15.5 mm	30 mm	2X2	15 mm	13.1 mm
5	SDA1605V-3	16.5 mm	5 mm	1X3	16 mm	14.1 mm
6	SDA1610V-3	16.5 mm	10 mm	1X3	16 mm	14.1 mm
7	SDA1616V-3	16.5 mm	16 mm	1X3	16 mm	14.1 mm
8	SDA2005V-3	20.75 mm	5 mm	1X3	20 mm	17.1 mm
9	SDA2010V-3	20.75 mm	10 mm	1X3	20 mm	17.1 mm
10	SDA2020V-3	20.75 mm	20 mm	1X3	20 mm	17.1 mm
11	SDA2030V-2	20.75 mm	30 mm	1X2	20 mm	17.1 mm
12	SDA2040V-2	20.75 mm	40 mm	1X2	20 mm	17.1 mm
13	SDA2505V-3	25.75 mm	5 mm	1X3	25 mm	22.1 mm
14	SDA2510V-3	25.75 mm	10 mm	1X3	25 mm	22.1 mm
15	SDA2520V-3	25.75 mm	20 mm	1X3	25 mm	22.1 mm
16	SDA2525V-3	25.75 mm	25 mm	1X3	25 mm	22.1 mm
17	SDA2530V-2	25.75 mm	30 mm	1X2	25 mm	22.1 mm
18	SDA2550V-2	25.75 mm	50 mm	1X2	25 mm	22.1 mm
19	SDA3110V-5	32 mm	10 mm	1X5	31 mm	25.4 mm
20	SDA3112V-5	32 mm	12 mm	1X5	31 mm	25.4 mm
21	SDA3116V-5	32 mm	16 mm	1X5	31 mm	25.4 mm
22	SDA3120V-5	32 mm	20 mm	1X5	31 mm	25.4 mm
23	SDA3132V-2	32 mm	32 mm	1X2	31 mm	25.4 mm
24	SDA3610V-5	37 mm	10 mm	1X5	36 mm	30.4 mm
25	SDA3612V-5	37 mm	12 mm	1X5	36 mm	30.4 mm
26	SDA3616V-5	37 mm	16 mm	1X5	36 mm	30.4 mm
27	SDA3620V-5	37 mm	20 mm	1X5	36 mm	30.4 mm
28	SDA3636V-2	37 mm	36 mm	1X2	36 mm	30.4 mm
29	SDA3810V-5	39 mm	10 mm	1X5	38 mm	32.4 mm
30	SDA3812V-5	39 mm	12 mm	1X5	38 mm	32.4 mm
31	SDA3816V-5	39 mm	16 mm	1X5	38 mm	32.4 mm
32	SDA3820V-5	39 mm	20 mm	1X5	38 mm	32.4 mm
33	SDA3825V-4	39 mm	25 mm	1X4	38 mm	32.4 mm
34	SDA3830V-3	39 mm	30 mm	1X3	38 mm	32.4 mm
35	SDA3840V-2	39 mm	40 mm	1X2	38 mm	32.4 mm
36	SDA4510V-5	46 mm	10 mm	1X5	45 mm	39.4 mm
37	SDA4512V-5	46 mm	12 mm	1X5	45 mm	39.4 mm
38	SDA4516V-5	46 mm	16 mm	1X5	45 mm	39.4 mm
39	SDA4520V-5	46 mm	20 mm	1X5	45 mm	39.4 mm
40	SDA4525V-4	46 mm	25 mm	1X4	45 mm	39.4 mm
41	SDA4530V-4	46 mm	30 mm	1X4	45 mm	39.4 mm
42	SDA4540V-3	46 mm	40 mm	1X3	45 mm	39.4 mm
43	SDA5010V-5	51 mm	10 mm	1X5	50 mm	44.4 mm
44	SDA5012V-5	51 mm	12 mm	1X5	50 mm	44.4 mm
45	SDA5016V-5	51 mm	16 mm	1X5	50 mm	44.4 mm
46	SDA5020V-5	51 mm	20 mm	1X5	50 mm	44.4 mm
47	SDA5025V-4	51 mm	25 mm	1X4	50 mm	44.4 mm
48	SDA5030V-4	51 mm	30 mm	1X4	50 mm	44.4 mm
49	SDA5040V-3	51 mm	40 mm	1X3	50 mm	44.4 mm
50	SDA5050V-2	51 mm	50 mm	1X2	50 mm	44.4 mm

Features and advantages of QIBR ball screw SDA series

QIBR ball screw SDA series solve multiple key problems across various fields, mainly in the following aspects:

1. High-speed feed and micro-feed capability

Due to the rolling motion of the balls, the starting torque is extremely low, eliminating creeping issues, making it ideal for high-speed and micro-feed applications.

2. Low friction and long service life

Unlike traditional sliding friction mechanisms, the Ball Screw SDA Series transmits power through rolling friction, reducing energy loss and wear. Since rolling friction generates less heat compared to sliding friction, the system experiences lower temperature rise, enhancing durability and stability.

3. High precision

The Ball Screw SDA Series enables high-precision motion control, making it widely used in applications requiring precise positioning, such as CNC machine tools and precision instruments.

4. High load capacity

The rolling motion of the balls allows for better load distribution between the screw shaft and the nut, significantly enhancing the load-bearing capacity compared to traditional linear bearings. This makes it well-suited for mechanical transmission applications that require higher load capacity.

Performance enhancements and solutions for QIBR ball screw SDA series

1. Precision improvement

Using high-precision machining equipment (such as CNC machines and grinding machines) ensures that the screw and ball tracks achieve superior geometric accuracy, dimensional precision, and surface finish.

2. Reduced friction and increased transmission efficiency

High-performance lubricants (oils or greases) can reduce friction, improve transmission efficiency, lower temperature rise, and extend service life.

Optimized lubrication design: By designing the contact angle and contact method between the balls and the track and employing an effective lubrication system, friction can be reduced while maintaining efficiency.

3. Improved torsional strength and stability

Enhancing the size ratio of the screw or using high-strength materials can increase its resistance to bending and torsion, thereby improving overall stability.

4. Self-locking design

The self-locking design of the ball screw allows it to hold its position without load or with minimal load, reducing unwanted movement when the system is stopped and improving stability.

Main application fields of QIBR ball screw SDA series

1. CNC machine tools

Ball screws are widely used in CNC machine feed systems, providing high-precision positioning and motion control.

2. Precision measuring equipment

Ball screws enable stable linear motion, making them ideal for coordinate measuring machines (CMMs) and other precision measurement systems.

3. Automation equipment

In automation systems, ball screws drive moving components, ensuring accurate positioning and material handling.

4. Transportation industry

Ball screws are used in electric vehicle seat adjustments, steering system adjustments, and railway power transmission systems.