4mm diameter miniature rolled ball screw

 4mm diameter miniature Rolled Ball Screw 

The Ball Screw pair can be lubricated to improve wear resistance and transmission efficiency. Lubricants are divided into two categories: lubricating oil and grease. For lubricating oil, use engine oil, No. 90-180 turbine oil, or No. 140 spindle oil. Lithium-based grease can be used as the grease. Grease is added to the threaded raceway and the housing space where the nut is installed, and the lubricating oil is injected into the nut space through the oil hole on the housing.
Ball screw pairs and other rolling friction transmission components, as long as they avoid the entry of abrasive particles and chemically active substances, these components can be considered to work with almost no wear. However, if dirt falls on the raceway or dirty lubricating oil is used, it will not only hinder the normal operation of the balls, but also increase the wear and tear sharply.
Usually a felt ring is used to seal the nut pair. The thickness of the felt ring is 2 to 3 times the pitch, and the inner hole is made into a threaded shape to tightly wrap the Lead Screw and fit it into the groove at both ends of the nut or sleeve.孔内。 In the hole. In addition to soft felt, the sealing ring can also be made of oil-resistant rubber or nylon. Since the sealing ring and the screw are in direct contact, the dustproof effect is better, but the friction resistance torque of the Ball Screw Nut pair is also increased. In order to avoid this frictional resistance moment, a non-contact labyrinth seal ring made of harder plastic can be used, and the inner hole is made into the opposite shape of the screw thread raceway, and a certain gap is left.
For the lead screw exposed to the outside, a protective cover in the form of spiral rigid belt, telescopic sleeve, tapered sleeve, and folding plastic or artificial leather is generally used to prevent dust and abrasive particles from adhering to the surface of the screw. Except that it is similar to the protective cover of the guide rail, one end of these protective covers is connected to the end face of the ball nut , and the other end is fixed on the supporting seat of the ball screw. This will make it stronger

Our Ball Screw Key Features 

1.  High mechanical efficiency                     

2.  Low noise

3.  Accuracy grade of C3, C5                      

4.  Long service life 

5.  Good synchronism                                 

7.  Manufacture by grinding

6.  Factory supply

Specification for M-ISNF0401 right hand ball screw

Product name Ball Screw
Model M-ISNF0401
Diameter 4mm
Lead(Pitch) 1mm
Thread length 63.5mm
Shaft length 91mm
Thread Right hand
Material GCR15
Production Technology By grinding
Feature High accuracy, Miniature Ball Screw

The standard model for bi-directional ball screw in stock 

Ball Screw Features

1. High transfer efficiency

Balls with free motion in the ball screw assembly transfer the force and motion between screw and nut. This transfer mode replaces the traditional transfer mode that screw shaft and nut effect directly. Therefore the minimum rolling friction takes place of the sliding friction of traditional screw. The transfer efficiency of ball screw will reach more than 90%. The drive torque of transfer unit reduces to 1/3 of sliding screw. This also reduces the heat release largely.

2. High positioning accuracy

Ball screw has low heat release, small temperature increase and with actions of pre-stretch and eliminating axial clearance in the process, which make ball screw have high positioning accuracy and repeating positioning accuracy.

3. Reversibility

Ball screw has not sticky friction like sliding screw. It clears crawl which may exists during transfer. Ball screw can achieve two transfer modes - from rotary motion to Linear Motion and from linear motion to rotary motion, and transfer momentum.

4. Long service life

Since the strict control of ball screw groove shapes, surface hardness and material selection, the actual life of ball screw is much longer than sliding screw.

5. Good synchronization

Due to smooth running, axial clearance elimination and consistency in manufacture, several sets of ball screw assembly can drive the same unit or several identical parts to obtain the good synchronization

Application fields 

Automatic controlling machines, semi-conductor industry, general industrial Machinery, machine tools, medical equipments, parking systems, measuring instrument, Automatic computer strip machine,  Gantry cranes,  Gantry robot,  3D engraving machine, linear stage, electric tools, Linear Actuator  ect..

Exhibition photos