Introduction of Stainless Steel Shaft

Stainless Steel Smooth Shaft has the guiding effect of sliding bearings, which can enable products to perform linear motion. Precision linear optical axis is applied in many linear motion systems such as cylinder rods, automatic precision printers, automatic cutting machines, and industrial robots. The requirements for these linear motion systems are: simple design, good execution capability, low maintenance costs, use of carefully selected materials, high-frequency heat treatment, accurate outer diameter dimensions, true roundness, true straightness, and surface treatment.

 Classification of Stainless Steel Bearing Shaft

1. Ordinary stainless steel  smooth finish shafts: Due to the contact between the precision linear optical axis and the linear bearing point, the surface hardness requirement for ordinary precision linear optical axis is very high, so the material and heat treatment method are important.
2. Chrome plated stainless steel  smooth shafts: The chrome plated precision linear optical axis is coated with a layer of hard chromium on the basis of the ordinary linear optical axis, which is suitable for environments prone to rust or poor conditions. This axis is widely used in industrial robots and the moving parts of automatic sliding system devices.
3. Chrome plated stainless steel smooth shafts: The chrome plated precision linear flexible shaft can be directly used for precision piston rods and some self-lubricating bearings due to its thick chrome layer. Due to its moderate hardness, it has been applied in many fields.
4. Stainless steel optical axis: Stainless steel precision linear shafts has corrosion resistance and wear resistance to maintain its operational performance. Therefore, it can be applied in situations where oxidation is prone to occur, such as water, chemicals, steam, seawater, etc.
The material of the stainless steel shafts is 304 (stainless steel), with a hardening thickness greater than 0.5mm. High frequency quenching is used for surface hardening, with a surface roughness of less than 1.5S and a surface hardness of HRC60-64
The outer diameter tolerance of the shaft is g6, and stainless steel shafts have good corrosion resistance. Therefore, they can be applied in situations where oxidation is prone to occur, such as water, chemicals, steam, seawater, etc.
The connecting component that supports the piston's work with a straight optical axis is mostly used in oil cylinders and cylinder motion execution components, and is a frequently moving and technically demanding moving component. Taking a hydraulic cylinder as an example, it consists of several parts: cylinder barrel, piston rod (cylinder rod), piston, and end cap. The quality of its processing directly affects the lifespan and reliability of a product. The processing requirements for piston rods are high, with a surface roughness requirement of Ra0.4~0.8um, and strict requirements for coaxiality and wear resistance. The basic characteristic of the oil cylinder rod is the processing of a slender shaft, which is difficult to process and has always been challenging for machining personnel.
The stainless steel optical axis processing technology adopts rolling processing to improve the surface corrosion resistance. The straight optical axis well can delay the generation or expansion of fatigue cracks, thereby improving the fatigue strength of the oil cylinder rod. Through rolling forming, a cold work hardening layer is formed on the rolling surface, reducing the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the oil cylinder rod surface and avoiding burning caused by grinding. After rolling, the reduction of surface roughness value can improve the fitting properties. At the same time, it reduces the friction damage to the sealing ring or seal during the movement of the cylinder rod piston, improves the overall service life of the cylinder, and the rolling process is an efficient and high-quality process measure.