JDB-20 Tin Bronze Graphite Plugged Self-Lubricating Bearing 50 MPa Load Capacity 400°C Temperature Range
Price:
Negotiable
Product Description
Product Overview
JDB-20 Tin Bronze Graphite Plugged Self-Lubricating Bearing is engineered for crane applications and heavy machinery requiring maintenance-free operation. This solid lubricated bronze bearing features graphite plugs embedded in a tin bronze alloy base, providing exceptional performance without external lubrication.
Material Composition
CuSn5Pb5Zn5 + Graphite
| Element | Minimum % | Maximum % |
|---|---|---|
| Copper (Cu) | 83.00 | 87.00 |
| Lead (Pb) | 4.00 | 6.00 |
| Tin (Sn) | 4.00 | 6.00 |
| Zinc (Zn) | 4.00 | 6.00 |
| Iron (Fe) | 2.00 | 0.30 |
| Nickel (Ni) | 0.00 | 2.00 |
| Aluminum (Al) | 0.00 | 0.01 |
| Phosphorus (P) | 0.00 | 0.10 |
Key Characteristics
- Optimized for low to medium loads and moderate velocity operations
- Excellent high-temperature performance up to 400°C
- Superior chemical resistance and corrosion protection
- Completely maintenance-free operation
Technical Specifications
| Parameter | Value |
|---|---|
| Material | CuSn5Pb5Zn5 |
| Density | 8.9 g/cm³ |
| HB Hardness | ≥70 |
| Tensile Strength | ≥250 MPa |
| Yield Strength | ≥90 MPa |
| Elongation | ≥13% |
| Thermal Expansion Coefficient | 1.8×10⁻⁵/°C |
| Operating Temperature Range | -40°C to +400°C |
| Maximum Load Capacity | 50 MPa |
| Maximum Speed (Dry) | 0.5 m/s |
| Maximum Speed (Lubricated) | 2.5 m/s |
| Maximum PV Value (Dry) | 1 N/mm²·m/s |
| Maximum PV Value (Lubricated) | 1.65 N/mm²·m/s |
Available Configurations
- Cylindrical oil-free bushings
- Flanged oil-free bearings
- Thrust washers and slide plates
- Custom designs and material specifications
- Alternative materials: CuZn5Sn5Pb5, CuSn10Pb10, CuSn12
Industrial Applications
JDB-20 solid bronze oil-free bearings are extensively used in fire place doors, baking furnace conveyor systems, rubber processing machinery, light industrial equipment, machine tools, and crane components.
Mounting Guidelines
- Housing: Minimum 1.5mm mounting bevel at 15-45°
- Shaft Material: Hardened steel with surface roughness < Rz 6.3
- Shaft Preparation: 5mm mounting bevel at 15° with rounded edges
- Installation: Use force fitting mandrel with optional grease lubrication
Manufacturing Capabilities
Quality Assurance
Advanced QC checking equipment and professional quality control team ensure consistent product performance and reliability.
Production Excellence
Professional production team with automated mass production capabilities for high efficiency and superior quality.
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Company
Jiashan PVB Sliding Bearing Co.,Ltd
Contact Person
Catherine Hu