In linear power transmission mechanisms, the shaft works together with an actuator, support rail, bushings (ball bearings), etc. In linear power transmission, the actuator typically does all the sliding work, while the rail, bushings, and linear shafts provide support.
Linear shafts have to be mounted before they’re used. There are two main ways of linear shaft mounting – continuous support and end-supported. Linear shafts with continuous support are typically used for heavier loads, while those supported at both ends are used for smaller weight loads.
Here are some of the advantages and benefits of linear shafts for different applications:
A wide range of appropriate materials to choose from;
Applicable in many different industries;
Possibility to manufacture with different diameters, strengths, materials, etc.;
Option for tapped, threaded, standard (full), or hollow shafts;
Superior bearing and support for different machines and mechanisms;
The hardness of a linear shaft can be measured with different tests or ways:
The Rockwell Hardness: by pressing a diamond or steel cone-shaped object against the material in question – in this case, the linear shaft – we can check the indentation and determine the hardness. Typically, linear shafts have a Rockwell hardness range of 50 to 59, 60 to 69, and 70 to 79;
The Knoop Hardness: another test that can measure the hardness of the linear shaft material by checking its resistance to indentation;
The Brinell Hardness: the material of the linear shaft is tested by placing huge loads of over 3 tons on it;
Ningbo Shitai Precision Machinery Co., Ltd. is a spline shaft manufacturer and also has other products such as motor shafts. Welcome to visit our official website.