High Load JF800 Bimetal Bushing Steel-Bronze Composite Sliding Bearing With Oil Groove Locating Hole For Heavy Duty Equipment
Product Details
| Max Dynamic Load: | 140N/mm² | Max Static Load: | 250~300N/mm² |
|---|---|---|---|
| Max Sliding Speed (Oil Lubrication): | 5m/s | Max Sliding Speed (Grease Lubrication): | 2.5m/s |
| PV Limit (Grease): | 2.8N/mm²·m/s | PV Limit (Oil): | 10N/mm²·m/s |
| Friction Coefficient: | 0.06 ~ 0.14 | Bronze Alloy Hardness: | 70 ~ 100HB |
| Continuous Operating Temp: | -40 ~ +150°C | Peak Temp (Oil Lubrication): | 250°C |
| Highlight |
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Product Description
- JF800 Bimetal Plain Bushing, Steel Back + CuPb10Sn10 Bronze Layer
- Pre-machined inner oil pockets for lubricant storage
- With locating hole, custom oil grooves and sizes available
- High load & shock resistance for construction, auto and hydraulic machinery
- ISO9001 certified, strict dimension inspection, fast delivery
Overview
JF800 bimetal bushing is a high-performance steel-bronze composite plain bearing, manufactured by sintering a lead tin bronze alloy layer onto a low-carbon steel backing. This bimetal structure combines the high mechanical strength of steel and the excellent friction & wear properties of bronze. The inner surface is pre-machined with oil pockets to store lubricant, greatly extending service life under intermittent lubrication or grease lubrication conditions. Locating holes, customized oil grooves and sizes are available upon request, widely used in heavy-load machinery, automotive and hydraulic systems.
Material Structure
- Backing: Low carbon steel, provides high mechanical strength and impact resistance
- Inner Friction Layer: CuPb10Sn10 lead tin bronze alloy
- Inner Surface: Precision machined oil pockets for lubricant retention
- Optional: Locating hole, axial / circumferential oil groove
Key Advantages
✅ High Load Capacity: Supports heavy static & dynamic loads, good shock resistance
✅ Excellent Wear Performance: Bronze layer with good embedability and conformability, reduces shaft wear
✅ Low Friction: Stable friction coefficient under oil or grease lubrication
✅ Wide Operating Temperature: Works reliably from -40°C up to 150°C continuous operation
✅ Customizable: Available with locating holes, oil grooves, custom ID / OD / length; standard metric sizes in stock
✅ Cost Efficient: Longer service life compared with solid bronze bushes, saves material cost
Technical Parameters
| Item | Specification |
|---|---|
| Max Dynamic Load | 140 N/mm² |
| Max Static Load | 250~300 N/mm² |
| Max Sliding Speed (Oil Lubrication) | 5 m/s |
| Max Sliding Speed (Grease Lubrication) | 2.5 m/s |
| PV Limit (Grease) | 2.8 N/mm²·m/s |
| PV Limit (Oil) | 10 N/mm²·m/s |
| Friction Coefficient | 0.06 ~ 0.14 |
| Bronze Hardness | 70 ~ 100 HB |
| Continuous Operating Temperature | -40 ~ +150 °C |
Application
Suitable for heavy-duty sliding parts in: Construction machinery, excavator hinge points, automotive chassis, engine parts, hydraulic cylinders, agricultural machinery, forklifts, gearboxes, machine tools and general industrial equipment.
Installation & Matching Recommendation
- Shaft hardness ≥ HRC53; shaft surface roughness Ra: 0.16~0.63 μm for optimal service life
- Interference fit for housing assembly
- Regular grease / oil lubrication recommended to reduce friction and wear
Quality & Packaging
- Quality System: ISO9001 certified
- Anti-rust treatment before packing
- Packing: Anti-rust paper + carton, bulk order with wooden pallet
- Inspection: 100% dimension inspection before shipment
- MOQ: 500 pcs
Product Highlights
JF800 Bimetal Plain Bushing, Steel Back + CuPb10Sn10 Bronze Layer Pre-machined inner oil pockets for lubricant storage With locating hole, custom oil grooves and sizes available High load & shock resistance for construction, auto and hydraulic machinery ISO9001 certified, strict dimension inspection...
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