Product Information
Micro Ball Screws are specifically designed for compact precision equipment, featuring a core focus on compact structure and high precision: screw diameters range from 3-16mm with lead pitches of 0.5-5mm, making them ideal for space-constrained applications. Constructed from high-strength alloy steel (stainless steel optional), they undergo heat treatment (HRC 58-62) and precision grinding to achieve C5-C7 accuracy grades with lead pitch error ≤3μm/m. with transmission efficiency exceeding 90%. Supports single/dual nut preloading for backlash elimination and can be equipped with micro dust seals. Widely used in semiconductor packaging, minimally invasive medical devices, etc., manufactured in compliance with ISO 3408 standards.
|
Product name |
SFK micro ball screw |
|
Material |
Alloy steel, chrome-molybdenum alloy steel, stainless 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. |
|
Service |
Products can be manufactured for customers according to drawings or samples. |
|
Accuracy grade |
C5/C7 |
|
Packing |
Plastic bag in box or wooden case. According to customer requirements. |
|
Delivery time |
Depends on the actual transport situation. |
Advantages
Compact Size
● Small size: The diameter of micro ball screw is usually between a few millimetres and a dozen millimetres, compared with ordinary screws, the occupied space is greatly reduced.
● Lightweight: Micro ball screws are lightweight due to their small size and low material usage.
High Flexibility
● Strong customisability: According to different application scenarios and special needs, it can be customised in terms of diameter, lead length, length, precision level, etc.
● Convenient installation: Micro ball screw's structure is relatively simple, installation methods are varied, in some of the need for rapid assembly and disassembly of the equipment, the advantages of its convenient installation are more prominent.
High Precision and Stability
● Low friction and high-precision transmission: Micro ball screw usually adopts high-precision ball or roller as the transmission element, with low coefficient of friction and small energy loss in the transmission process, which is suitable for occasions with very high requirements for precision, such as semiconductor photolithography equipment, precision measuring instruments and so on.
● Good repeatability: In the process of many reciprocating movements, micro ball screw can maintain stable transmission accuracy and positioning accuracy, repeatability error is small, in automatic mounter, dispenser, etc., especially important.
Low Noise and Vibration
● Smooth operation: Micro ball screw in the design and manufacturing process, focusing on the transmission components of the precision control and surface quality treatment, running ball or roller and screw, nut engagement between the smooth, reducing the transmission due to unstable vibration and noise.
● Low resonance risk: Due to the micro ball screw's light weight and small inertia, it is not easy to produce resonance phenomenon when running at high speed, which improves the operation efficiency and reliability of the equipment.
Specification Parameters
|
Nominal type |
Shaft diameter |
Lead |
Bead diameter Da |
Nut size |
Dynamic rated load |
Static rated load |
Stiffness kgf/m |
||||||||||||
|
D |
A |
B |
L |
w |
H |
X |
Y |
z |
Q |
n |
|||||||||
|
SFK00401 |
4 |
1 |
0.8 |
10 |
20 |
3 |
12 |
15 |
14 |
2.9 |
一 |
一 |
1x2 |
64 |
97 |
5 |
|||
|
SFK00601 |
6 |
1 |
0.8 |
12 |
24 |
3.5 |
15 |
18 |
16 |
3.4 |
一 |
二 |
一 |
1x3 |
111 |
224 |
9 |
||
|
SFK00801 |
8 |
1 |
0.8 |
14 |
27 |
4 |
16 |
21 |
18 |
3.4 |
一 |
1x4 |
161 |
403 |
14 |
||||
|
SFK00802 |
8 |
2 |
1.2 |
14 |
27 |
4 |
16 |
21 |
18 |
3.4 |
一 |
一 |
1x3 |
222 |
458 |
13 |
|||
|
SFK008025 |
8 |
2.5 |
1.2 |
16 |
29 |
4 |
26 |
23 |
20 |
3.4 |
一 |
一 |
二 |
1x3 |
221 |
457 |
13 |
||
|
SFK01002 |
10 |
2 |
1.2 |
18 |
35 |
5 |
28 |
27 |
22 |
4.5 |
一 |
一 |
一 |
1x3 |
243 |
569 |
15 |
||
|
SFK01004 |
10 |
4 |
2 |
26 |
46 |
10 |
34 |
36 |
28 |
4.5 |
8 |
4.5 |
M6 |
1x3 |
468 |
905 |
17 |
||
|
SFK01202 |
12 |
2 |
12 |
20 |
37 |
5 |
28 |
29 |
24 |
4.5 |
一 |
一 |
一 |
1x4 |
334 |
906 |
22 |
||
|
SFK01402 |
14 |
2 |
1.2 |
21 |
40 |
6 |
23 |
31 |
26 |
5.5 |
一 |
一 |
1x4 |
354 |
1053 |
24 |
|||
|
SFK01602 |
16 |
2 |
12 |
25 |
43 |
10 |
40 |
35 |
29 |
5.5 |
一 |
一 |
M6 |
1x4 |
373 |
1200 |
26 |
||
|
SFK02002 |
20 |
2 |
1.2 |
50 |
80 |
15 |
55 |
65 |
68 |
6.5 |
10.5 |
6 |
M6 |
1x6 |
581 |
2284 |
48 |
||
|
SFK02502 |
25 |
2 |
1.2 |
50 |
80 |
13 |
43 |
65 |
68 |
6.5 |
10.5 |
6 |
M6 |
1x5 |
540 |
2381 |
46 |
||
|
XSURO1204T3D-02 |
12 |
4 |
2.5 |
24 |
40 |
6 |
28 |
32 |
25 |
3.5 |
|
|
一 |
1x3 |
454 |
722 |
二 |
||
|
XSURO1205T3D-00 |
12 |
5 |
2.5 |
22 |
37 |
8 |
39 |
29 |
24 |
4.5 |
|
|
二 |
1x3 |
675 |
1316 |
17 |
||
Product Picture
Pre-processing steps before packaging
Pre-processing steps before packaging
Cleaning and Debris Removal: Wipe the lead screw surface, thread grooves, and nut inner walls with a lint-free cloth dipped in precision instrument cleaner to remove residual cutting fluid and metal debris from production. For fine gaps like ball passages, blow with high-pressure clean air at 0.3-0.5MPa to prevent impurities from jamming and affecting transmission accuracy.
Rust Prevention & Reinforcement: Apply differentiated treatments based on lead screw material properties-for alloy steel models, uniformly coat with specialized rust-preventive oil (film thickness ≤5μm) to form a dense protective layer; for stainless steel models, prioritize inspecting surface passivation film integrity. If localized damage exists, promptly reapply passivation to ensure overall stable moisture resistance and rust prevention.
Precision Protection: Custom plastic plugs are fitted over threaded interfaces at both ends to block foreign object ingress. For assemblies with pre-mounted nuts, elastic protective sleeves encase the nut body, secured with low-tack tape to maintain relative positioning between nut and screw. This prevents surface scratches from slippage and avoids preload parameter shifts.
Drying Treatment: If ambient humidity exceeds 60%, place cleaned and rust-proofed screws in a low-temperature drying oven at 40-50°C for 15-20 minutes, or store them with silica gel desiccant in a sealed container for 30 minutes. This reduces surface moisture and prevents internal condensation after packaging.
Categorization and Traceability: Group the lead screws by model, specification, and precision grade. Apply a temporary traceability label to each product indicating the model, production batch, and production date. Cross-verify this information with the corresponding quality inspection report to ensure specification accuracy and information traceability, laying the foundation for subsequent packaging operations
Packaging, Logistics, and Transportation
Packaging, Logistics, and Transportation
Considering the delicate nature of Micro Ball Screws and the core requirements for dust and moisture protection, the packaging employs a layered protective design: Each individual product is enclosed in an anti-static sealed bag, paired with EPE foam cushioning to prevent scratches, and includes built-in desiccant for moisture control. Outer packaging utilizes thickened corrugated boxes or custom rigid cases. Internal compartments secure multiple products to prevent crushing, with clear labeling indicating "Precision Components, Fragile & Moisture-Sensitive." Bulk shipments are reinforced with wooden pallets to prevent crush damage.
Logistics partners specializing in precision instrument transport are prioritized, employing shock-absorption solutions to minimize vibration. Tracking numbers and links are provided upon shipment, with expedited delivery options available. For overseas or special regions, customs clearance documentation is pre-arranged. Customers receive pre-delivery notifications to inspect packaging; immediate assistance is offered to assess product condition upon damage detection, ensuring secure delivery.
Maintenance Points
Although the screw has been rust-proof treatment before leaving the factory, it is still necessary to clean the rust-proof oil and inject lubricant before use; if it is not used within one month after purchase, it is necessary to do the rust-proof treatment regularly, and the time of rust-proof treatment is adjusted according to the difference of the regional temperature; check the operating condition of the screw for one month regularly, and when the surface is polluted by dust and metal dust, clean it with paraffin first and then add the lubricant; the screw should have lubricant at any time to prevent the product from rusting and damaging due to the lack of lubricant. The screws should be lubricated at all times to prevent the products from rusting and damaging due to the lack of lubricant.+
Company Profile
Our address
No. 99 Dayuan Street, Liandu District, Lishui City, Zhejiang Province, China
Phone Number
+8613116375959
741097243@qq.com
FAQ
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