Rolled Ground Ball Screw with Nut Tbi Size Miniature/Big Lead

Product Description

 

Product Description

A ball screw is a mechanical linear actuator that translates rotational motion to linear motion with little friction. A threaded shaft provides a helical raceway for ball bearings which act as a precision screw. As well as being able to apply or withstand high thrust loads, they can do so with minimum internal friction. They are made to close tolerances and are therefore suitable for use in situations in which high precision is necessary. The ball assembly acts as the nut while the threaded shaft is the screw.
 

Brand	Customize the logo according to your requirements
Precision	C7&C5 rolled,C5&C3 grinding
Model	SFK,SFU,DFU,SFE,SFS,DFS,SFI,DFI,SCI
Size customize	Available
Maximum length	1000MM~7500MM,different diameter maximum length are different
Raw Materail	50Crmo4,S55C,SCM420H
Items packing	Plastic bag+Cartons+Plywood boxes.According to our customer's request.
Payment terms	L/C,TT,Western Union,or according to your requirements
Application	CNC machines,machine tools,Industrial Machinery,Pringting Machine,Paper-processing machine,automatic machines,textiles machines,electronic machinery,transport machinery,Robot,etc

Rolled ball screws can not only be used in above general machinery, but also in many advanced industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is more eco-friendly than hydraulic pump system. Nowadays it's applied to electric vehicles, solar power plants, railway devices and many medical and leisure equipments.

Precision ball screws have high smoothness and precise positioning, and at the same time have low torque, high rigidity, ultra-quiet and predictable long life characteristics.
The remanufactured ball screw has the advantages of high smoothness, long life and low price, and is generally used when the precision is not required.


Ball screw according to GB classification there are P class and T class, that is, transmission class and positioning class, the accuracy level has 1, 2, 3, 4 ..... Several kinds, foreign products generally do not distinguish transmission or positioning, all to C0 ~ C10 or specific values. In general, general-purpose machinery or ordinary CNC machinery selected C7 (any 300 stroke within the positioning error ± 0.05) or below, high-precision CNC machinery selected C5 (± 0.018) above C3 (± 0.008) below, optical or detection machinery selected C3 above.

There are many different series of ball screw shaft with nut, like SFU series, SFI series, SFE series, DFI series,  DFU series.Each series has its own characteristics, Let's look at the difference in appearance and characteristics.

Ball screw bearing specifications selection

(1) Determine the positioning accuracy;
(2) Determine the lead of the ball screw bearing by the motor and the speed requirement;
(3) Check the nut size to determine the stroke and related data of the shaft end of the screw bearing;
(4) Determine the average axial force and speed by load and speed distribution (acceleration and deceleration);
(5) Determine the pre-pressure from the average axial force;
(6) Determine the dynamic load rating by life expectancy, axial load and speed;
(7) Determine the outer diameter of the screw bearing and the nut form by the basic dynamic load rating, lead, critical speed, and DmN value limit;
(8) The outer diameter, nut, preload, and load determine the rigidity (machine design);
(9) Ambient temperature, total length of the nut to determine the thermal variation and cumulative lead;
(10)Screw bearing rigidity, thermal variation position to determine the pre-tension;
(11)Maximum machine speed, temperature rise time, and screw bearing specifications determine motor drive torque and specifications.

Ball Screw Features:

1.High Reliability
has very stringent quality control standards covering every production process. With proper lubrication and use, trouble-free operation for an extended period of time is possible.
2. Smooth Operation
The high efficiency of ball screws is vastly superior to conventional screws. The torque required is less than 30%. Linear motion can be easily changed from rotary motion.
3.High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience, have resulted in the most durable ball screws manufactured.


 

Our Company



Shanghai Matech Machinery Manufacture Co., Ltd.
--Branch of Matech Industry Ltd.



Shanghai Matech Machinery Manufacture Corporation Ltd.-Matech Industry Ltd Shanghai Branch We specializes in Metal Parts Solution for Vehicle, Agriculture machine, Construction Machine, transportation equipment, Valve and Pump system. To satisfy different mechanical and functional requirements from our customers we are able to make a big range of metal products for our clients on base of different blanks solutions and technologies. Ball screws are is another of our main products.
Ball screws are widely used in automation equipment, placement machine, laminating machine, automation welding assembly equipment, instrumentation, medical equipment, printing equipment, precision machinery equipment, grinding machines, and automatic machinery equipment manufacturing. During the early involvement of the customer's design process we are able to provide professional input to our customers in terms of process feasibility, cost reduction and function approach.
You are welcome to contact us for technical enquiry and business cooperation.Our Vision : Keeping Continuous improvement on technology and engineering innovation, becoming a strong, stable and high competence top metal working supplier in one of our business sections with focus on Vehicle and Manufacturing Industries and continuously satisfy our customers.

Our Core Value: Sincerity Quality Competence
 

You are welcome to contact us for technical enquiry and business cooperation.

Our Team

 

Customer photos

 

Our Service:
1.Our Team:
We have experienced and qualified team of marketing and sales representatives to serve our valued customers with the finest products and unsurpassed service.And have professional engineers team to assessment and development the new precision products,and make the OEM customized more easily,experienced QC team to test the products quaity ensure the goods quality before delivery out.

2.Our products:
Quality is the life .We use only the best quality material to ensure the precision of our
Product.All products we sold out are strictly selected and tested by our QC department.

Packaging & Shipping

1, Bundles Packing: Inside: packed with plastic protective film to protect each piece. Outside: Wrap to be bundles by waterproof
craft paper or EPE film.

2, Carton Packing: Inside: Each pcs pack in one plastic bag. Outside: Numbers of quantity put in one carton.

3, Wood Pallet Packing: Inside: Bundles or cartons packing; Outside: Numbers of bundles or cartons laden on one wood pallet.

4, Customized Packing As Clients Request is Available.




 

FAQ

 

1. What's your main products?
Cold rolled ball screws, ball screw support units, Linear guide rails, Linear motion ball slide bearing, Cylinder rails, Linear shaft, Couplings, etc.

2. How can I get a sample to check your quality?
After price confirmation, sample order is available to check our quality.

3. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.

4. Can you do ball screw end machine processing?
Yes. We have a professional team having rich experience in end machine processing, please provide us the drawing with the tolerance and we will help you to make the ball screws depending on the drawing.

5. How long is the lead time for mass production?
Honestly, it depends on the order quantity and the season you place the order. The lead time of MOQ is about 7 to 15 days. 

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