SFK00802 TBI miniature ball screw

 0801 ball screw with right and left hand ball screw, RL ball screw  

Ball screw is an ideal product that converts rotary motion into linear motion, or converts linear motion into rotary motion.
Ball screw is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert rotary motion into linear motion, or convert torque into axial repetitive force. At the same time, it has both high precision, reversibility and high Features of efficiency. Because of its low frictional resistance, ball screws are widely used in various industrial equipment and precision instruments.
The ball screw is composed of a screw, a nut, a steel ball, a pre-compression piece, a reverser, and a dustproof device. Its function is to convert rotary motion into linear motion, which is the further extension and development of Akem screw. The important meaning of this development is to change the bearing from sliding motion to rolling motion.
There are two kinds of circulation methods: outer circulation and inner circulation. The ball that sometimes comes out of contact with the screw during the cycle is called the outer loop; the ball that always keeps in contact with the screw is called the inner loop. Each closed loop of the ball is called a row, and the number of leads contained in each closed loop of the ball is called the number of turns. Each nut of the inner circulation ball screw pair has 2 rows, 3 rows, 4 rows, 5 rows, etc., each row has only one turn; the outer loop has 1.5 turns, 2.5 turns and 3.5 turns in each row.
1) Outer circulation: The outer circulation means that the balls return to the screw nut through the spiral groove or intubation on the outer surface of the nut after the circulation process is over. The return methods of the outer circulation ball screw nut pair according to the ball circulation mainly include end cap type, intubation type and spiral groove type. Commonly used outer circulation method: end cap type; intubation type; spiral groove type. In the end cap type, a longitudinal hole is machined on the nut to serve as the return passage of the balls. The cover plates at both ends of the nut have return ports for the balls, and the balls enter the return pipe to form a cycle. Intubation type, it uses an elbow as the return pipe. This structure has good manufacturability, but because the pipe protrudes from the nut body, the radial dimension is relatively large. Spiral groove type, it is a spiral groove milled on the outer circle of the nut, through holes are drilled at both ends of the groove and tangent to the threaded raceway to form a return channel. This structure has a smaller radial size than the cannula structure, but Manufacturing is more complicated. The outer circulation structure and manufacturing process of the outer circulation ball screw are simple and widely used. The disadvantage is that it is difficult to smooth the joints of the raceways, which affects the stability of the ball raceways.
2) Inner circulation: Inner circulation adopts reverser to realize ball circulation. There are two types of reverser. Cylindrical convex key reverser, its cylindrical part is embedded in the nut, and the end is provided with a reverse groove 2. The reverse groove is positioned by the cylindrical outer surface and the round key 1 at the upper end to ensure the alignment of the thread raceway direction. Oblate insert reverser, the reverser is a general round head flat key insert, the insert is embedded in the slot of the nut, and the end is provided with a reverse groove 3, which is positioned by the outer contour of the insert. Comparing the two inverters, the latter has a smaller size, which reduces the radial size of the nut and shortens the axial size. However, the outer contour of this kind of reverser and the dimensional accuracy of the slot on the nut are required to be higher.

Key features

1.  High mechanical efficiency                   2. Axial play

3. High precision                                         4. Long service life 

5.  Good synchronism                                 6.Fast delivery

7. Short manufacturing cycle

0801, 0601, 0401  ball screw with right and left hand 1

The standard model in stock

Various models in stock,other sizes,dimensions and shape are available upon request

                             The characteristic of ball-screw pair

The ball screw drive system is a rolling screw drive system, in which the ball acts as the rolling medium. There are two drive modes:

(1) transform rotary motion into linear motion. (2) transform linear motion into rotary motion.

Application fields:

Automatic controlling machines,semi-conductor industry,general industrial machinery,machine tools,medical equipments,parking systems,measuring instrument

Our product series

1.BALL SCREW:

SFU SERIES,SFE SERIES,M-ISNF SERIES,M-ISNA SERIES, M-ISNC SERIES, M-CSNF SERIES BALL SCREW

WITH GCR15 or STAINLESS STEEL MATERIAL.

2.LEAD SCREW WITH LEFT HAND, RIGHT HAND,RIGHT-LEFT HAND

3.AKD SUPPORT UNIT FOR BALL SCREW, LEAD SCREW

4.COUPLING 

5.LINEAR GUIDEWAY

Why choose us ?

1. Screwtech designs, manufactures, supplies a complete selection of inch and metric linear mechanical parts and systems to the Linear Motion and Power Transmission Industries.

We accept customised upon receiving your drawing!

Our products include:

1)Miniature Ball Screw with diameter from 4mm-16mm, lead from 1mm to 10mm.

2)Stainless Steel or 1045 Steel Lead Screw with POM or Brass Nut, diameter from 3.5mm to 80mm

3)Stainless Steel Ball Screw, Lead Screw

4)AKD Support Unit of Ball Screw, Lead Screw

5)HIWIN Linear Guideways

6)Stepper Motor 

7)Flexible Coupling of ball screw

2.We provide the best service for you!

1) We have a group of professional engineers we can provide drawings according to customer's requirements.

2). We have more than 20 machines for offering professional lead screw and ball screw end machining service.

3). We can rebuild, refurbish, and make emergency repairs to lead screw,  ball screw and linear guideways.

4). We can disassemble, clean, polish lead screw,  linear guideways and lead screw, ball screw

5). Two years free maintenance to lead screw , ball screw and one years free maintenance to linear guideways.

3.Competitive price

Screw Technology is a manufactory which can export directly to customer, so there is no intermediary cost involved.