Advantages

High Precision

Precision grinding process, small pitch error, pre-tightening technology to eliminate clearance, repeatable positioning accuracy up to ±0.003mm or less, to meet the needs of precision equipment.

Long Life

Alloy steel and bearing steel are selected, heat-treated to enhance the hardness, optimized ball circulation design, with a working life of over 20,000 hours under normal working conditions.

Low Noise

Small rolling friction coefficient, smooth movement, manufacturing precision to ensure uniformity of the fit gap, good lubrication.

Low Price

Large-scale production, strong versatility, standardized batch output, market supply is sufficient to reduce costs, without the need for high custom fees.

Good Rigidity

Large diameter screw, optimized cross-section shape, enhanced torsion and bending resistance, small deformation under the same load, to protect the movement accuracy.

Product Information

To address varying precision requirements across different equipment, SFU ball screws offer a wide range of accuracy options-covering multiple grades including C3, C5, and C7. For high-precision equipment demanding ultimate accuracy, the C3 grade is recommended. For mid-to-high-end transmission applications requiring enhanced precision, the C5 grade delivers precise matching. In general precision scenarios, the C7 grade serves as the mainstream solution, offering both cost-effectiveness and practicality to fully meet diverse needs.

Popular models like SFU2505 and SFU3210 feature C7 precision as their core specification. Their accuracy performance fully meets the fine displacement control requirements of precision machinery while also satisfying the feed accuracy standards for CNC machine tools during machining processes. This ensures stable equipment operation while effectively minimizing the impact of transmission errors on machining quality.

Product name	SFU Ball Screws
Material	Alloy steel, chrome-molybdenum alloy steel, stainless steel, tool steel, high-speed steel.
Lengths	Lengths can be customized according to customer requirements.
Applications	Machine tools, automation equipment, aerospace, military, semiconductor manufacturing, medical equipment, and precision measuring instruments.
Service	Products can be manufactured for customers according to drawings or samples.
Precision grade	C3/C5/C7
Product packaging	Plastic bag in box or wooden case as per customer's requirement.
Delivery time	Depends on the actual transport situation.

Specification Parameters

Single Axis Ball Screw Nut Specification Sheet (SFU Series)
Type	Dimensions
Type	d	I	Da	D	A	B	L	W	X	H	Q	N	Ca (kgf)	Coa (kgf)	K (kgf/μm)
SFU1204-4	12	4	2.381	24/22	40	10	40	32	4.5	30	/	4	593	1129	12.5
SFU1604-4	16	4	2.381	28	48	10	40	38	5.5	40	M6	4	629	1270	35
SFU1605-3		5	3.175	28	48	10	43	38	5.5	40	M6	3	765	1240	17
SFU1605-4		5	3.175	28	48	10	50	38	5.5	40	M6	4	780	1790	20
SFU1610-3/2	16/15	10	3.175	28	48	10	47	38	5.5	40	M6	3	721	1249	15
SFU2005-3	20	5	3.175	36	58	10	43	47	6.5	44	M6	3	860	1710	22
SFU2005-4		5	3.175	36	58	10	51	47	6.5	44	M6	4	1130	2380	25
SFU2010-3/2		10	3.175	36	58	10	47	47	6.5	44	M6	3	830	1680	20
SFU2505-3	25	5	3.175	40	63	10	43	51	6.5	48	M6	3	960	2300	32
SFU2505-4		5	3.175	40	63	10	51	51	6.5	48	M6	4	1280	3110	35
SFU2510-4		10	4.762	40	63	12	85	51	6.5	48	M6	4	1944	3877	33
SFU2510-4/2		10	3.175	40	63	10	54	51	6.5	48	M6	4	1150	2950	30
SFU3205-4	32	5	3.175	50	81	12	52	65	9	62	M6	4	1450	4150	40
SFU3206-4		6	3.175	50	81	12	57	65	9	62	M6	4	1720	4298	43
SFU3210-4		10	6.35	50	81	14	90	65	9	62	M6	4	3390	7170	45
SFU4005-4	40	5	3.175	63	93	14	55	78	9	70	M6	4	1610	5330	49
SFU4010-4	40	10	6.35	63	93	14	93	78	9	70	M6	4	3910	9520	55
SFU5005-4	50	5	5.175	75	110	15	55	93	11	85	M6	4	1730	6763	60
SFU5010-4		10	6.35	75	110	16	93	93	11	85	M6	4	4450	12500	65
SFU5020-4		20	7.144	75	110	16	138	93	11	85	M6	4	4644	14327	59.5
SFU5310-4	63	10	6.35	90	125	18	98	108	11	95	M6	4	5070	16600	80
SFU6320-4	63	20	9.525	95	135	20	149	115	13.5	100	M6	4	7573	29860	84.1
SFU8010-4	80	10	6.35	105	145	20	98	125	13.5	110	M6	4	5620	21300	90
SFU8010-5		10	6.35	105	145	22	118	125	13.5	110	M6	6	7810	31800	106
SFU8020-4		20	9.525	125	165	25	154	145	13.5	130	M6	4	8485	30895	108
SFU10020-4	100	20	9.525	150	202	30	180	170	17.5	155	M6	4	9420	39183	134

Note: Table Yellow is available with left-handed screws.

Structural Design

1. Core Components and Principle: Consists of precision-ground lead screws (helical grooves), custom nuts (circulation channels), and high-grade ball bearings. Balls circulate within the grooves, converting screw rotation into high-precision linear motion. Replacing sliding friction with rolling friction reduces energy consumption by 30% compared to sliding systems, achieving transmission efficiency of 90-95%.

2. Nut Design:

Split Type: Traditional model with adjustable preload;

Integrated Type: Features integrated four-point angular contact bearings (saving 25% space), 15-20% higher ball capacity (supporting greater loads), 30-40% fewer components (simplifying assembly), concentricity <0.01mm, and noise levels 3-5dB lower than split types.

Product Picture

Company Profile

Lishui Jiesheng Transmission Co., Ltd. was established in 2020, occupying a site area exceeding 4,000 square meters. The company specializes in the R&D, production, and global sales of high-precision linear transmission systems. Centered around ball screws, linear guides, and linear modules, our product portfolio extends to customized system integration solutions for precision bearings, drive components, industrial automation, smart equipment, and new energy sectors. We are committed to providing you with efficient and reliable transmission technology support.

Our address

No.99 Dayuan Street, Liandu District, Lishui City, Zhejiang Province

Phone Number

+8613116375959

E-mail

741097243@qq.com

FAQ

Q: How can you support us as a partner?

A: We will provide you with the best price, the best service and other supporting documents, such as quotations, technical data sheets, drawings, reference lists, test reports, etc.

Q: Can I visit your company?

A: We warmly welcome you to visit our company in person! Should you wish to schedule a tour, please contact us via the phone number or email provided on our official website to arrange a specific time. We will assign a dedicated representative to guide you through our production facilities, product showroom, and R&D center. This will allow you to gain a firsthand understanding of our company's capabilities and product quality. We look forward to meeting you!

Q: What should be noted when installing ball screws?

A: During installation, ensure the parallelism error between the lead screw and guide rail is ≤0.02mm/m to prevent radial forces from causing component deformation or precision loss. The nut seat must be preloaded according to specifications (P2 preload standard recommended), and regular lubrication maintenance must be performed using grease application or an oil mist lubricator.

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