core insert sets guide bush with shoulder high polishing bushings
The shoulder guide bush is a critical precision component designed to provide accurate axial positioning and reliable guidance in mold systems. Engineered to work seamlessly with core insert sets and polishing bushings, this component ensures perfect alignment, reduces wear, and maintains stability in demanding industrial applications.
Key Features
Integrated Shoulder Design
Provides precise axial positioning and load-bearing capability
Prevents component sinking or displacement during operation
Ensures perfect alignment with core insert sets
Enhanced Durability
Manufactured from high-grade bearing steel (SUJ2 equivalent)
Case hardened to HRC 58-62 for superior wear resistance
Precision grinding ensures Ra 0.8μm surface finish
Optimized Compatibility
Designed to work with polishing bushings for smooth operation
Perfect alignment with core insert sets
Available in standard sizes with custom options
Technical Specifications
Material: High-carbon chromium bearing steel
Hardness: HRC 58-62 (case hardened)
Surface Finish: Ra 0.8μm max
Standard Sizes: 10-80mm diameters
Tolerance: h6 grade

Material | Carbide,ASP23,Vanadis,CPMRTXM4,SKD11,SKD61,HSS,A2,M2,D2,SUJ2,S45C,ect |
Standard | Dayton,Lane,DIN,ISO,MISUMI,EDM,FIBRO,MOELLER,HASCO,ect |
Size | Depend on your drawings or products standard |
Place of origin | Dongguan, Guangdong, China |
Heat treatment | Available |
Surface Work | TiCN, TiN, Aitain, Ticrn, nitriding , Black oxygened, Black coating etc available |
Tolerance | + - 0.002mm |
Polishness | Close to Ra0.2 |
Hardness | Depends on material(HRC60~94) |
Delivery time | 3-5 Working days, depends on the quantity the order. Express by DHL, UPS, FEDEX, TNT or Ocean Shipping etc. |
Main Products | Guide elements, punch pin, die button, ejector pin and sleeve, oilless bush, etc. |









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