GZCuZn34Al2 Oilless Bearing Bushing
GZCuZn34Al2 Oilless Bearing Bushing
GZCuZn34Al2 Oilless Bearing Bushing: Precision Chassis Parts for Construction Machinery
Searching for reliable oilless bearings, know the value of materials that combine strength, corrosion resistance, and low maintenance. At Bearingface.com, our GZCuZn34Al2 (2.0596) bearing bushing stands out as a top choice for construction machine chassis applications. This centrifugal-cast aluminum brass alloy (DIN EN 1982, CC764S-GZ) excels in high-load sliding contacts, reducing friction and wear in pivot points and suspension systems.
Key Features and Specifications
Built for transactional buyers prioritizing specs over hype, here’s what makes GZCuZn34Al2 the go-to oilless bearing solution:
| Feature | Specification/Details | Benefits/Optimization |
|---|---|---|
| Alloy Composition (GZ-CuZn34Al2) | Cu 55.0-66.0%, Mn 1.0-4.0%, Al 1.0-3.0%, Fe 0.5-2.5%, Zn balance | High static strength and machinability for precise chassis fits. |
| Mechanical Properties | Tensile strength ≥620 MPa, yield strength ≥260 MPa, elongation >14%, Brinell hardness ≥150 HB | Superior durability under shock loads in heavy-duty construction environments. |
| Oilless Design | Self-lubricating via embedded solid lubricants | Eliminates oil needs in dusty sites, reducing maintenance and contamination risks. |
| Casting Method | Centrifugal (GZ) for uniform microstructure | Ensures consistent performance in dynamic chassis applications. |
| Standards Compliance | DIN EN 1982 (CC764S-GZ), DIN 1709 (GZ-CuZn34Al2), UNS C86300 equivalent, BS 1400 HTB2 | Traceable quality assurance for OEM and regulatory compliance. |
| Density | 8.6 g/cm³ | Lightweight yet robust builds for cost-effective upgrades in OEMs and aftermarket repairs. |
Specific Applications in Construction Machine Chassis
Tailored for heavy-duty use, this oilless bearing bushing targets critical chassis components where vibration, dirt, and heavy loads accelerate wear:
- Steering Pivots and Kingpins: Handles radial and axial forces in excavator or loader steering knuckles, minimizing play for precise control.
- Suspension Bushings: Absorbs shocks in dozer or grader undercarriages, extending track system life by 20-30% over standard bronze alternatives.
- Swing Bearings and Arm Mounts: Supports rotational torque in backhoe arms, resisting corrosion from soil and water exposure.
- Wheel Hub Assemblies: Reduces friction in articulated dump truck hubs, ideal for off-road traction without lubrication maintenance.
Procure in bulk for bronze bushings projects, delivering ROI through reduced downtime.
Material Comparison and Selection Guide
Selecting the right oilless bearing material? Compare GZCuZn34Al2 against common alternatives for chassis use. Our table highlights why this cast aluminum brass outperforms in strength-to-weight and cost.
| Property/Material | GZCuZn34Al2 (Cast Al-Brass) | CuSn8 (Phosphor Bronze) | AlSn (Aluminum-Tin) | Why Choose GZCuZn34Al2? |
|---|---|---|---|---|
| Tensile Strength (MPa) | ≥620 | 250-400 | 200-300 | Highest load-bearing for chassis shocks. |
| Hardness (HB) | ≥150 | 80-120 | 60-90 | Superior wear resistance in abrasive conditions. |
| Corrosion Resistance | Excellent (Al + Zn matrix) | Good | Moderate | Thrives in wet, salty construction sites. |
| Machinability | Medium-High | Medium | High | Balances precision fit with cost efficiency. |
| Cost per kg (Est.) | $8-12 | $15-20 | $6-10 | Optimal value for high-volume procurement. |
| Best For | Heavy chassis pivots | Light-duty slides | Low-load bearings | Demanding construction torque and vibration. |
Material Designation Comparison
For engineers and procurement teams specifying GZCuZn34Al2 oilless bearings, understanding the casting variants under DIN EN 1982 and DIN 1709 is key. Below is a comparison table highlighting the abbreviated designations, numbers, and methods—focusing on the GZ (centrifugal) variant for superior uniformity in chassis bushings.
| Standard | Casting Variant | Abbreviated Designation (EN 1982) | Number (EN 1982) | Abbreviated Designation (DIN 1709) | Casting Method | Key Advantage for Oilless Bearings |
|---|---|---|---|---|---|---|
| DIN EN 1982 | GS | CuZn34Mn3Al2Fe1-C-GS | CC764S-GS | G-CuZn34Al2 | GS or G (Sand casting) | Cost-effective for prototypes; suitable for low-volume, simple shapes. |
| DIN EN 1982 | GM/GK | CuZn34Mn3Al2Fe1-C-GM | CC764S-GM | GK-CuZn34Al2 | GM or GK (Permanent mold casting) | Better surface finish than sand; ideal for medium-production runs with moderate complexity. |
| DIN EN 1982 | GZ | CuZn34Mn3Al2Fe1-C-GZ | CC764S-GZ | GZ-CuZn34Al2 | GZ (Centrifugal casting) | Uniform microstructure for high-load chassis parts; minimizes defects in oilless, high-wear applications. |
Notes: GS = Sand casting (G); GM/GK = Permanent mold casting; GZ = Centrifugal casting.
Select GZ for construction machine chassis where precision and durability under shock loads are critical—aligns with UNS C86300 equivalents for global sourcing.
FAQ: Quick Answers for Oilless Bearing Buyers
Q: Is GZCuZn34Al2 suitable for oilless operation in a construction chassis? A: Yes—its aluminum-enhanced matrix provides inherent lubricity, ideal for dry-run pivots without oil contamination risks.
Q: How does it compare to standard CuZn bushings for procurement? A: GZCuZn34Al2 offers 50% higher strength than basic CuZn alloys, with better elongation for fatigue resistance in chassis flex points.
Q: What sizes and tolerances are available on Bearingface.com? A: Standard ID 20-100mm, OD up to 150mm; tolerances ±0.02mm. Custom machining per DIN 1709—request quotes for bulk orders.
Q: Can I get material certification for engineering specs? A: Absolutely—includes full alloy reports (CuZn34Al2Mn3Fe1-C) and test data for tensile, hardness, and composition.
Ready to spec it in? Contact Bearingface.com for specification drawings or volume pricing on GZCuZn34Al2 oilless bushings today.
