Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
                                                                                                           
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23 Years
Since 2003
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Durable Tungsten Steel Piston Bushing φ88×74mm with 87-92 HRA Hardness and ±0.001mm Precision Tolerance

Price Negotiable
Price: Negotiable
MOQ: 1 piece
Delivery Time: 15~45 Days
Brand: Sanxin
Product Description
This tungsten steel piston bushing undergoes precision machining with inner surface polished to Ra0.4 finish and external surface at Ra0.8. The carbide guide bush exhibits a distinctive metallic luster after complete precision processing.
Product Specifications
Dimensions: φ88 × φ79.74 × φ74 × 45mm
Bore Height: 30mm
Tilt Angle:
Inner Diameter: 74mm (no chamfer allowed)
Tolerance: +0.005/+0.015mm
Groove Configuration: 7 grooves of 0.3mm thickness evenly distributed on outer circle
Material Properties
Property Value
Cobalt Content 10%-20%
Density 14.0-14.5 g/cm³
Hardness 87-92.0 HRA
Grain Size 0.6-1.2μm
TRS 3200-4000 MPa
Elastic Modulus 490 GPa
Thermal Expansion Coefficient 5.4 × 10⁻⁶/ºC
Custom Capability: Outer dimensions and specifications can be customized according to drawings with accuracy requirement of ±0.002mm.
Precision tungsten steel piston bushing with metallic finish and groove details
Key Advantages
  • National high-tech enterprise certification
  • High tolerance accuracy ±0.001mm processing capability
  • Excellent wear resistance, heat resistance, and corrosion resistance
Technical Support & Services
Our expert team provides comprehensive technical support including product selection, installation guidance, and maintenance services. We offer custom fabrication solutions and training on best practices for tungsten carbide product utilization.
Tungsten carbide processing technical support and manufacturing facility
Quality Commitment
We operate under strict quality-first principles with competitive pricing for both wholesale and retail orders. Our commitment includes timely delivery, mutual benefit partnerships, and continuous innovation to provide superior value products.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
Location No. 8, Middle School Road, Baiguan Town, Lusong District, Zhuzhou, Hunan, China
Contact Person Anne Zhang

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