The primary function of a Ball screw is to convert rotary motion to linear motion. They are a screw with many ball bearings embedded between the screw and nuts. The ball screw has a specific life span and a low wear rate. I.N.B delivers completely assembled Ball screws. Moreover, these screws have high-accuracy applications and are cost-effective.
Manufacturing Process Of Ball Screw
Companies select different manufacturing processes per their specifications. Some of them are:
Rolled Screws: Generally, this process creates a Ball screw with a .004 inch per foot correctness. This process involves cold rolling.
Milled Screws: Typically, this process moulds a Ball screw with a .002 inch per foot correctness. It produces on a milling machine while applying a cutter.
Ground Screws: Generally, this process creates a Ball screw with a .0005 inch per foot correctness. It produces on a grinding wheel.
Specification Of Ball Screw
Essential specification to know when buying ball screws or lead screws.
- Sometimes you can get design arrangements in English or Metric. But some suppliers add both.
- You should know the exact length of the screw you need.
- In a Ball Screw or Lead Screw, the outer screw diameter is larger than the screw.
- The maximum static capacity is the most weight the Ball screw can hold while the load is still.
- The dynamic load rating is the maximum weight the assembly can hold while moving.
Features
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Backlash
It is the free movement along the axis between the nut and the screw. It is a way to measure the toughness of the assembly.
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Right-Hand Thread
It means that when the Ball screw rotates clockwise, the direction of the threads on the screw shaft makes the ball nut move away from both ends.
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Left-Hand Thread
When you turn a screw with a left-hand thread, the ball nut moves away from the end. It happens because the direction of the lines on the screw shaft moves counterclockwise.
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Lead
Lead is the distance a screw moves along its axis during one turn.
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Twin Leads
A single-drive system allows Twin leads to restrict or control two different motions. This design uses both left and right-hand threads.
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Common Materials
Common materials for Ball screws are plastic and Bronze.
Final Takeaway
Hopefully, you have fully gathered enough understanding of the types of Ball screws, manufacturing process, and specifications. So before you buy Ball Screw from I.N.R, ensure you know the correct size and specification.