Durable Tungsten Steel Piston Bushing
Precision-engineered OEM hard alloy carbide bushing tool with superior durability and performance characteristics.
Product Specifications
Dimensions: φ88 × φ79.74 × φ74 × 45mm
Bore height: 30mm with 5º tilt
Surface finish: Ra0.4 internal, Ra0.8 external
Inner diameter: 74mm (no chamfer allowed)
Tolerance: +0.005/+0.015
Outer circle features: 7 evenly distributed grooves of 0.3mm thickness
Material Properties
| Cobalt Content (Co) |
10%-20% |
| Density |
14.0~14.5 g/cm³ |
| Hardness |
87-92.0 HRA |
| Grain Size |
0.6-1.2μm |
| Transverse Rupture Strength (TRS) |
3200-4000 MPa |
| Elastic Modulus |
490 GPa |
| Thermal Expansion Coefficient |
5.4 × 10⁻⁶/ºC |
Custom Manufacturing Capabilities
All outer dimensions and specifications can be customized according to your drawings with precision accuracy of ±0.002mm.
Key Advantages
- National high-tech enterprise certification
- High tolerance accuracy processing: ±0.001mm
- Excellent wear resistance, heat resistance, and corrosion resistance
Our Commitment
We implement business policies focused on quality first, customer satisfaction, competitive pricing for all order sizes, and timely delivery to ensure mutual growth and benefit with our customers.
Technical Support & Services
Our expert team provides comprehensive technical support for all tungsten carbide processing products, including product selection, installation, maintenance, and training. We offer repair services and custom fabrication solutions tailored to your specific requirements.