High Load JF700 Bimetallic Bushing Steel Back CuPb30 Alloy Sleeve Bearing for Hydraulic Auto Construction Machinery Parts
Product Details
| Material Structure: | Steel Base + Sintered CuPb30 Alloy Layer | Alloy Layer Hardness: | HB 30 ~ 45HB |
|---|---|---|---|
| Steel Back Hardness: | HB 90 ~ 120HB | Max Dynamic Load: | 25N/mm² |
| Max Static Load: | 80N/mm² | Max Sliding Speed (Grease Lubrication): | 2.5m/s |
| Max Sliding Speed (Fluid Oil Lubrication): | 10m/s | PV Limit (Grease Lubrication): | 2.8N/mm²·m/s |
| PV Limit (Oil Lubrication): | 10N/mm²·m/s | Friction Coefficient: | 0.05 ~ 0.15 |
| Operating Temperature Range: | -40 ~ +170°C | Shaft Surface Hardness (Matching): | ≥ HRC48HRC |
| Shaft Surface Roughness: | Ra 0.16 ~ 0.63μm | Structure Type: | Split Wave Joint Bushing |
| Lubrication Method: | Grease / Continuous Oil Lubrication | ||
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Product Description
Product Introduction
JF700 bimetallic bushing is a high-performance composite sliding bearing, constructed with a robust low-carbon steel backing and a sintered CuPb30 copper-lead alloy friction layer. The unique split wave-cut design allows simple press-fit assembly into housing bores.
This bimetal bearing combines the high mechanical strength of steel base and the excellent tribological properties of copper alloy. It delivers outstanding wear resistance, anti-seizure capacity and fatigue resistance under lubricated conditions. It works reliably for rotary, oscillating and reciprocating motions, widely adopted in automotive, hydraulic, construction and agricultural machinery.
Key Features
✅ Bimetal composite structure: Steel back for high load bearing, sintered CuPb30 alloy for low friction
✅ Wave split opening design, easy installation and stable positioning after pressing
✅ Good conformability and embedability, tolerant to minor shaft misalignment and foreign particles
✅ Excellent anti-scuffing performance under intermittent or oscillating working conditions
✅ Stable performance within wide temperature range
✅ Custom sizes available: Inner diameter, outer diameter, length can be produced according to drawings or samples
✅ OEM & ODM service supported
Technical Specifications
| Item | Parameter |
|---|---|
| Material | Low carbon steel base + Sintered CuPb30 copper lead alloy |
| Alloy Layer Hardness | HB 30 ~ 45 |
| Steel Back Hardness | HB 90 ~ 120 |
| Max Dynamic Load | 25 N/mm² |
| Max Static Load | 80 N/mm² |
| Max Sliding Speed (Grease Lubrication) | 2.5 m/s |
| Max Sliding Speed (Oil Lubrication) | 10 m/s |
| PV Limit (Grease Lubrication) | 2.8 N/mm²·m/s |
| PV Limit (Oil Lubrication) | 10 N/mm²·m/s |
| Friction Coefficient | 0.05 ~ 0.15 |
| Operating Temperature | -40℃ ~ +170℃ |
| Recommended Shaft Hardness | ≥ HRC48 |
| Shaft Surface Roughness | Ra 0.16 ~ 0.63 μm |
| Lubrication | Grease lubrication / Continuous oil lubrication |
Application Scenarios
- Automotive: Engine connecting rod, rocker arm, transmission components
- Hydraulic equipment: Hydraulic cylinder guide bushing
- Construction machinery: Excavator, loader, crane hinge points
- Agricultural machinery & general industrial equipment
- Gearbox, pump and compressor assemblies
Our Advantages
We are a professional manufacturer of sliding bearings and bushings. Strict raw material inspection and full-process quality control ensure consistent product quality. We can develop non-standard sizes based on customer drawings or samples, and provide fast lead time for bulk orders.
Product Highlights
Product Introduction JF700 bimetallic bushing is a high-performance composite sliding bearing, constructed with a robust low-carbon steel backing and a sintered CuPb30 copper-lead alloy friction layer. The unique split wave-cut design allows simple press-fit assembly into housing bores. This bimetal ...
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