25mm Linear Shaft Feature and Application

25mm linear shaft optical axis is a mechanical component with sliding bearing guidance.Which enables equipment to achieve linear motion. The product is widely used in fields such as automation equipment, CNC machine tools, packaging machinery, printing machinery, 3D printers, and industrial robots.
Linear optical axes can be divided into carbon steel, bearing steel, and stainless steel according to their materials. According to hardness, there are soft shafts and hard shafts.And according to surface treatment, there are standard shafts and chrome plated shafts. The main materials include 45 # steel, GCr15 bearing steel, etc. The manufacturing process usually includes high-frequency heat treatment, straightening, rough and fine grinding, polishing, and electroplating processes. There are high precision requirements for the straightness, surface hardness, roundness.And outer diameter dimensions of the product.

1. Ordinary 25mm linear shaft optical axis (sf): Due to the contact between the ordinary linear optical axis and the linear bearing point.The surface hardness requirement for the ordinary linear optical axis is very high.So the material and heat treatment method are important. Material: suj2 (equivalent to national standard gcr15) Hardness: hrc60 ± 2; Hardened layer depth: 0.8-3mm; surface roughness: ra0.10m-Ra3.35m; Straightness: below 70um/1000mm; The outer diameter tolerance of the shaft is g6.
2. Chromium plated linear optical axis (SFC): Chromium plated linear optical axis is a layer of hard chromium, also known as bearing rod, plated on the basis of ordinary linear optical axis. It is suitable for environments that are prone to rust or poor environments. This axis is widely used in industrial robots and the moving parts of automatic sliding system devices: suj2 (equivalent to national standard gcr15). Hardness: hrc60 ± 2; Hardened layer depth: 0.8-3mm; surface roughness:ra0.10m-Ra3.35m, straightness material.

3. Stainless steel 25mm linear shaft: Stainless steel linear shafts have high corrosion resistance, strength.And wear resistance to maintain their efficient operating performance. Therefore, it can be applied in situations where oxidation is prone to occur, such as water, chemicals, steam, seawater, etc. Material: Mainly martensitic stainless steel, such as SUS440C (corresponding to national standard grade). Hardness: HRC60 ± 2; Hardened layer depth: 0.8-3mm; surface roughness: ra0.10m-pra0.35m straightness.
4. Chrome plated hollow shaft: Due to its hollow structure, the chrome plated hollow shaft greatly reduces weight and simplifies the structure. Its interior is suitable for inserting measurement wires, compressing air, adding lubricating oil, or for use in robotic arms.

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