Round Flange Graphite Bronze Bushing Self Lubricating Oil Free Bearing, High Strength Brass Sliding Bush for Automation Machinery Mold
Product Details
| Product Model: | Round Flange Oil-free Bushing | Base Material: | High-strength Brass (CuZn25Al5, High Leaded Bronze Optional) |
|---|---|---|---|
| Max Static Load: | 140 N/mm² | Max Dynamic Load: | 70 N/mm² |
| Max Surface Speed: | 0.4 M/s | PV Value: | Max 2.8 N/mm²·m/s |
| Working Temperature: | -40℃ ~ +280℃ | Surface Roughness: | Ra 0.8 After Precision Machining |
| Tolerance: | Inner Hole F7, Outer Shaft H7 | ||
| Highlight |
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Product Description
Product Overview
Round flange graphite bronze bushing (MPTZ / OFR01 series) is a self-lubricating sliding bearing made of high-strength brass alloy, with solid graphite plugs embedded on the bearing surface. The flange design with mounting holes enables fast installation and accurate positioning.
This oil-free bushing works without external grease supply. During operation, graphite releases lubricant to form a stable lubrication film, greatly reducing friction and wear. It performs well under high load, low speed, high temperature and dusty environments, widely adopted in automation equipment, plastic molds, machine tools and hydraulic machinery.
Key Features
- Self-lubricating Design: Embedded solid graphite, no frequent oiling required, maintenance-free.
- High Load & Wear Resistance: High strength brass substrate, excellent compressive strength and anti-wear property.
- Flange Mounting Structure: Integrated round flange with bolt holes, easy installation and axial positioning.
- Wide Working Temperature Range: Stable performance from -40°C ~ +280°C.
- Good Shock Resistance: Suitable for oscillating, intermittent motion scenarios.
- Customizable Service: Support custom ID, OD, length, flange dimension and special material.
Technical Parameter Table
| Item | Specification |
|---|---|
| Product Model | MPTZ / OFR01 Round Flange Oil-free Bushing |
| Base Material | High-strength Brass (CuZn25Al5, High Leaded Bronze optional) |
| Lubricant | Solid Graphite Inlay |
| Max Static Load | 140 N/mm² |
| Max Dynamic Load | 70 N/mm² |
| Max Surface Speed | 0.4 m/s |
| PV Value | Max 2.8 N/mm²·m/s |
| Working Temperature | -40℃ ~ +280℃ |
| Surface Roughness | Ra 0.8 after precision machining |
| Tolerance | Inner Hole F7, Outer Shaft h7 |
Application Fields
✅ Injection molds, die casting molds
✅ CNC machine tools, automation linear equipment
✅ Hydraulic cylinders, lifting machinery
✅ Textile, packaging machinery
✅ Robot joint, conveyor equipment
✅ Construction machinery hinge parts
Our Advantages
We are professional manufacturer of sliding bearings and bronze bushings. We provide stock standard MPTZ series flange graphite bushings, and support non-standard drawing customization. Strict CNC machining and quality inspection before shipment. Small order & bulk order both acceptable.
Product Highlights
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