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Hot Products

Hybrid Bipolar Stepper Motor Frame 17 1.68A 0.44N.m 42MM

NEMA23 Step Motors with High Torque and Performance

Linear Guideways

NEMA23 Bipolar Step Motor 57mm Hybrid 4 8 Wires

Hollow Shaft or Threaded Shaft Stepper Motors

Linear Mothion Guideways

Linear Guideway Products

Ball Screw

Leadscrew for CNC Machine

Rolled Ball Screw

FAQ

Is the grease of the machine tool screw rod good or weak?

Screw rod bearings relatively high speed, should be diluted (low viscosity) of grease, with high viscosity grease will lead to increased friction, temperature rise, the result is easy to burn bearings.

CNC machine tool screw gap

For a pure driving situation, general requirements for flexible transmission, allow a certain return to the gap (small, usually a few silk), using a single nut, it is cheaper and more flexible transmission; for a return to the precision of gear clearance conditions is not allowed, it is required to choose double nuts, it can adjust the magnitude of pre tightening force, keep good, and can be repeatedly adjusted; in addition, restricted travel in space, also can choose the variable lead preload (commonly known as stagger preload), the pretightening force is small, and it is difficult to repeat adjustment, generally do not choose.If the gap is large, please timely maintenance, system compensation value can not be too large, in the case of large gap screw, continue to use, will greatly shorten the service life of the lead screw, and easy to cause damage can not be repaired

I'd like to make my own lathe screw. What material should I use?

The ordinary lathe screw is only the general precision grade, and the requirement of the abrasion resistance and the material deformation is not particularly high. So use 45# or 40Cr conditioning.If it is a precision machine tool, such as a rib grinder or an ultra long connecting screw, it requires a high resistance to wear, a small amount of deformation, and can maintain the accuracy for a long time. Use 9Mn2V or CrWMn quenching.

How about the central screw in the CNC lathe? Or an ordinary side screw!

Structurally, the center screw must be stable. Without doubt.To tell the truth, NC cars are too many brands, and not so good brand, it is better to see its quality can not do.The lathe is good. Look at the key points. Spindle, wire guide, motor, and the work of its own bed.Table spindle, guide rail, screw rod, motor, high performance price ratio.Japanese spindle, wire rod, guide rail and motor are of good quality, but they are expensive. (people do things too much consideration of the cost, resulting in quality can not keep up. Hey

What material is used for the screw nut of machine tools?

Some use alloy steel, some with carbon only, usually with carbon

How can the accuracy of the CNC machine tools be compensated after a few years?

Compensate by experience

I would like to ask what method installed, do not know how many balls, loaded and loaded less, what is the situation, ah, urgent, thank you

Ball screw generally replace a new, do not change the ball,Especially the replacement of itself, it is difficult to guarantee the accuracy of ball screwsSuggest replacing a new ball screw

The Z shaft screw is close to the motor and is equipped with 3 angular contact bearings. There are 2 bearings under it. Ask experts to teach me how to install, the top 3 how to arrange, the following 2 how to arrange, thank you!

There are 3 bearings. Generally not 4, that is, 2. Angular contact bearings are marked on each side. Are generally installed back-to-back. The bearings are facing outwards.Some may pretend to be face-to-face. The two bearings, such as the made in China Harbin and the NSK, are put together. Back to a V word, like the NSK, the installation time is generally inverted V. The point in the direction of the screw.Extended introduction:Bearing (Bearing) is an important component of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement and guarantee its rotation accuracy.According to the friction property of the moving element, the bearings can be divided into two kinds: rolling bearing and sliding bearing. Among them, the rolling bearing has been standardized and serialized, but compared with the sliding bearing, its radial dimensions, vibration and noise are relatively large, and the price is higher.Generally, the rolling bearings are composed of four parts: the outer ring, the inner race, the rolling body and the cage. According to the shape of the rolling element, the rolling bearings are divided into two major categories: ball bearings and roller bearings.