High Fatigue Resistance JF-20 Bimetallic Bushing AlSn20Cu Bi-Metal Sleeve Bearing For Automotive & Engineering Machinery

JF-20 High Tin Aluminum Bimetallic Sliding Bushing, Low Carbon Steel Backing + AlSn20Cu Alloy Liner. Good anti-fatigue & corrosion resistance, stable sliding performance. Custom oil holes, oil grooves, notches & sizes available. Ideal replacement for Babbitt alloy bearings.

Product Description

JF-20 bimetallic bushing is a rolled composite plain bearing. It adopts low carbon steel plate as the base material, and the inner sliding layer is compounded with AlSn20Cu high tin aluminum alloy by rolling metallurgical bonding. The dual-metal structure perfectly combines the high mechanical strength of steel substrate and the excellent friction & wear performance of aluminum-tin alloy.

This bearing material has medium fatigue strength and load capacity, outstanding corrosion resistance, good conformability and embeddability. It can maintain stable sliding performance under oil lubrication conditions. It is widely used as a cost-effective alternative to traditional Babbitt alloy bearings for many medium & light load rotating machinery.

We can machine customized oil holes, S-shaped oil grooves, positioning notches and other structures according to customer drawings. All products are precision machined with strict tolerance control, surface roughness up to Ra0.8μm. Standard sizes in stock, OEM & ODM custom processing are supported.

Core Advantages

✅ Dual metal composite structure: Steel base provides high rigidity, AlSn20Cu lining delivers low friction and wear resistance

✅ Good anti-fatigue performance, stable operation under cyclic load

✅ Excellent corrosion resistance, suitable for harsh working environment

✅ Great conformability & dirt embeddability, reduce shaft scratch risk

✅ Customizable: ID, OD, length, oil hole, oil groove and notch design

✅ Cost saving: Economic substitute of Babbitt alloy bearing

✅ Strict quality inspection, ISO standard tolerance

Technical Parameters

Application Fields

• Internal combustion engine connecting rod & main bearings
• Air compressor, refrigeration equipment
• Gearbox, hydraulic system components
• Medium & small power machinery
• Automotive assemblies, engineering machinery
• General industrial rotating equipment

Order & Packaging

1. Standard sizes are available from stock. Custom dimensions are acceptable based on drawings or samples.
2. MOQ can be negotiated for bulk orders.
3. Quality Control: 100% dimension inspection before shipment.
4. Packing: Anti-rust paper + plastic bag + export carton, or wooden case for heavy goods.
5. Delivery: Fast lead time for standard items.

FAQ

Q1: Can you make custom oil holes and oil grooves on the bushing? A: Yes. We can drill oil holes, machine S-type oil grooves, open positioning notches as your requirement.

Q2: What lubrication does JF-20 bushing need? A: JF-20 works with oil lubrication. It is not designed for dry running.

Q3: Can you produce according to customer samples or drawings? A: OEM & ODM are supported. Please send us your drawing or sample for quotation.

Q4: What is the surface finish of the bushing? A: Precision machining, surface roughness Ra ≤0.8μm.