High-Ductile Strength Centrifugally Cast & Machined Leaded Tin & High-Leaded Tin Bronze Bushings
DEV PRECISION ENGINEERS is a leading manufacturer and exporter of premium-grade Gunmetal, Bronze, Leaded Bronze, Leaded Tin Bronze, and High-Leaded Tin Bronze Bushings. Manufactured using Centrifugal Casting, Extrusion, and Sand Casting techniques followed by multi-axis precision machining, our bushings deliver superior material quality, high dimensional accuracy, and exceptional shell concentricity.
Trusted by OEMs, heavy-equipment manufacturers, and aftermarket distributors across the US, Europe, Australia, and worldwide, our bronze bushing solutions combine high load-carrying capacity with outstanding anti-seizure properties.
Manufacturing & Quality Testing Standards
- Casting Technologies: Centrifugal Casting, Extrusion, and Sand Casting (suitable for low-volume custom designs to large bulk production runs).
- Quality Norms & Testing: 100% Quality Assurance including Chemical Material Analysis, Dimensional Verification, and Dye Penetrant (DP) Testing.
- Global Compliance: Engineered to meet strict international standards (SAE, ASTM, UNS) for major export markets.
Key Specifications & Technical Matrix
| Technical Parameter | Specification & Technical Capability |
| Bushing Types | Plain Bushings, Thin-Walled, Cut-Type (Split), Flanged Bushings |
| Leaded Tin Bronze Alloys | C93700 (SAE 64 / E10 / ASTM 3A), 85Sn-5Pb-5Zn-5 (C83600 / SAE 40 / B5 / ASTM 4A), 80Sn-10Pb-10 |
| High-Leaded Tin Bronze Alloys | C93200 (SAE 660 / A-932 / ASTM 3B / 83Sn-7Pb-7Zn-3), C90500 (SAE 62 / ASTM 1A / 88Sn-10Zn-2), C90700 (SAE 65 / 89Sn-11) |
| Outer Diameter (OD) | 20mm to 450mm |
| Length Range | 10mm to 400mm |
| Finishing Options | Fully Finished, Semi-Finished (Proof Machined), Copper Visible Finish |
| Packaging Types | Individual Box Packaging, Bulk Freight, Loose Export Crating |
Material Categories & Alloy Performance
1. Leaded Tin Bronzes
Formulated for applications requiring similar performance to standard tin bronzes, but with enhanced machinability, superior pressure tightness, and high ductile strength under hydraulic stresses.
- Primary Uses & Applications:
- Medium & high-pressure hydraulic equipment and steam fittings (up to $550^\circ\text{F}$)
- Structural castings, heavy-duty machinery bearings, and pump pistons
- Marine machinery parts, ornamental castings, and lead screw nuts
2. High-Leaded Tin Bronzes (Featuring SAE 660 / C93200)
Includes the industry-benchmark bearing alloy C93200 (SAE 660), recognized for its exceptional wear performance against unhardened or slightly irregular steel shafts. The lead content imparts high lubricity and anti-seizing properties, allowing parts to endure boundary or interrupted lubrication conditions.
- Primary Uses & Applications:
- General-purpose industrial bushings, sleeve bearings, and thrust washers
- High-speed, heavy-pressure bushings and low-friction, moderate-pressure applications
- Bridge bearing plates, structural machinery parts, and railroad applications
- Components exposed to mild acid environments or requiring shaft misalignment tolerance
Primary Target Machinery & Applications
Our Gun Metal and Bronze Bushings deliver operational reliability across diverse reciprocating and rotating machinery:
- Automotive & Off-Highway: Passenger Cars, Commercial Trucks, Agricultural Tractors, & Heavy Earthmovers.
- Heavy Powertrains: Marine Diesel Engines, Industrial Generators, & Railway Locomotives.
- Industrial Rotating Equipment: Air & Gas Compressors, Industrial Gearboxes, High-Pressure Hydraulic Systems, & Process Pumps.
Technical Assistance & RFQ Options
Custom Alloy Formulations & Special Sizes
We specialize in manufacturing custom-dimension bronze bushings tailored to your exact engineering prints, oil groove patterns, and material grade specifications. Contact our international export team today for technical support and pricing.