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Product Description

Precision Ground Ball Screw is engineered for high-end ultra-precision equipment, featuring core advantages of "micron-level accuracy + high transmission stability." Manufactured through quenching and tempering followed by multi-stage precision grinding processes, it delivers exceptional accuracy and transmission efficiency. Supports dual-nut preloading to eliminate backlash, with optional dust seals or surface hardening treatments available upon request. Widely applied in semiconductor lithography equipment, aerospace precision instruments, high-end CNC machine tools, medical imaging devices, and other fields, these components comply with international precision transmission standards. Each unit undergoes professional precision inspection and calibration.

Advantages

Ultra-high precision

After precision grinding, the positioning accuracy can reach micron level, which guarantees the precise movement of the equipment.

Efficient transmission

Smooth surface of the screw, low coefficient of friction, efficient conversion of power, automated production lines, CNC machine tools with it, the work cycle is greatly shortened.

Full rigidity

Selection of high-strength materials, treated with a special process, strong rigidity, small deformation under large loads.

Wear-resistant and anti-manufacturing

Uniform and dense microstructure, good wear resistance, stable performance in long-term use, reduce failure, long equipment life, low maintenance costs.

Quiet operation

Small friction, vibration, low noise, for the laboratory, medical equipment to create a quiet working environment.

Flexible customisation

According to customer demand, custom specifications, precision and special requirements, to adapt to various types of equipment, personalised scenarios.

Product Information

Product Name	precision ground ball screws
Material	Alloy steel, chrome-molybdenum alloy steel, stainless steel, tool steel, high-speed steel.
Length	Length can be customised according to customer requirements.
Applications	Machine tools, automation equipment, aerospace, military, semiconductor manufacturing, medical equipment and precision measuring instruments.
Services	Products can be manufactured according to drawings or samples.
Accuracy Grade	C3/C5/C7 grade precision ground ball screw
Packaging	Plastic bag in box or wooden case. Upon customer's request.
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

Product Picture

Production Process

Process Flow

Peeling: Surface treatment of raw bar stock to remove outer oxide layers, impurities, and surface defects, ensuring a smooth and clean substrate surface for subsequent machining.

Straightening (Rough Adjustment): Initial correction of peeled bars to reduce bending deformation, adjust overall straightness, and minimize precision errors caused by substrate curvature in subsequent processing.

Grinding Machine (Rough Grinding): Rough grinding of the bar's outer diameter to remove excess material, preliminarily calibrate outer dimensions, and reserve adequate processing allowance for subsequent fine grinding.

Straightening (Fine Adjustment): Further precision correction after coarse grinding refines straightness deviations, ensuring overall flatness meets precision requirements for subsequent fine machining.

Grinding Machine (Fine Grinding): Fine grinding of the rod's outer diameter precisely controls dimensional accuracy and surface finish, enhancing base material machining precision to meet fundamental accuracy standards for ball screw core components.

Rolling Mill: Utilizes rolling mills to form thread raceways on the bar surface, establishing the preliminary raceway structure and defining the foundational trajectory for ball transmission, laying the groundwork for subsequent precision processing.

Quenching: Subjects the formed workpiece to a quenching process to enhance material hardness and wear resistance, strengthen overall mechanical properties, and ensure long-term operational stability of the ball screw.

Polishing: The surface of the quenched workpiece undergoes polishing to further refine surface finish, reduce friction resistance during transmission, and optimize screw transmission efficiency.

Incoming Inspection: Critical metrics including dimensional accuracy, surface quality, and geometric tolerances are verified on polished components to identify compliant products.

Finished Goods: Inspected and approved components undergo packaging before being stored as finished goods, awaiting subsequent delivery or assembly.

Service and Quality Commitment

Why choose Jiesheng Transmission to meet your ball screw needs?

We provide high-quality ball screws for demanding industrial applications.

Dual Assurance of Quality and Compliance

We guarantee end-to-end support from requirement alignment to standard compliance: - C3-C7 precision manufacturing ensures transmission accuracy and minimizes backlash for seamless adaptation across light-to-heavy-duty applications - Production adheres to international environmental standards with priority use of eco-friendly materials - Products meet global industrial standards, delivering stable performance while ensuring compliance

Stable Supply, High Efficiency

Over 10 years of manufacturing expertise + automated equipment ensure bulk orders ship on schedule; popular models are always in stock for urgent needs, while a long-term partnership approach guarantees supply stability-preventing disruptions that slow projects and putting you in control of your timeline.

Cost-Effective Global Reach

Factory direct supply eliminates intermediary costs. Bulk purchases qualify for price discounts, and flexible payment options align with your financial planning. Partnering with premium logistics providers, we build a global distribution network handling customs clearance and transportation end-to-end. Whether you're in North America, Europe, or Asia, you'll receive intact products on time, balancing cost and efficiency.

Customized After-Sales Support

We customize ball screws to your specifications for length, lead, and material. Our expert team provides simultaneous selection guidance and installation support. All products come with a 1-year warranty covering free replacement or repair for non-human-induced defects. Customer service is available 24/7, offering comprehensive support from customization to operation.

FAQ

Q: What is the durability of Grinding Ball Screws?

A: We use high-grade alloy steel, special heat treatment to enhance the hardness and toughness. Grinding process makes the surface smooth and wear-resistant, under normal working conditions, the service life is far more than ordinary screws, strong stability.

Q: Do you provide product testing report?

A: Of course! Before each batch of products leave the factory, they are strictly tested for precision, load, life and so on. Detailed quality inspection report will be attached when delivered.

Q: Can we provide samples for testing first?

A: No problem! You only need to provide detailed requirements, we immediately arrange for sample production and delivery, but do not bear the freight. The sample comes with a complete test report, your test period, our technicians online, ready to answer questions, to assist you to complete the test evaluation, satisfied with the bulk purchase.

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