Linear motion shafts are products that utilize sliding bearings to guide and enable linear movement. The essential requirements for these linear motion systems include: simple design, optimal performance, low maintenance costs, the use of carefully selected, durable materials, high-frequency heat treatment, and precise outer diameter dimensions, roundness, straightness, and surface finish.
Classification:
1. Standard Linear Motion Shafts (SF): Due to the point-to-surface contact between standard linear shafts and linear bearings, the surface hardness of standard linear shafts is very important. Therefore, the material and heat treatment method are crucial. Material: SUJ2 (equivalent to) national standard GCr15; Hardness: HRC60±2; Hardening layer depth: 0.8-3mm; Surface roughness: Ra0.10m-Ra0.35m; Straightness: below 70um/1000mm; Shaft outer diameter tolerance: g6
2. Chrome-plated Linear Motion Shafts (SFC): Chrome-plated linear motion shafts are standard linear motion shafts with a layer of hard chrome plating. Also known as bearing rods, they are suitable for environments prone to rust or harsh conditions. These shafts are widely used in industrial robots and the moving parts of automatic sliding systems. Material: SUJ2 (equivalent to) national standard GCr15; Hardness: HRC60±2; Hardening layer depth: 0.8-3mm; Surface roughness: Ra0.10m-Ra0.35m; Straightness: (material specifications).
Application
Linear rails are widely used in numerous linear motion applications, such as cylinder rods, automatic precision printers, automatic cutting machines, and industrial robots.
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