Choosing the Right Bronze Bearing Material: Meet Your Industry Standards with VIIPLUS (C93200, C95400, C86300)

Choosing the Right Bronze Bearing Material: Meet Your Industry Standards with VIIPLUS (C93200, C95400, C86300)

Selecting the correct material for bronze bearings and bushings (Bronze Gleitlager) is critical for ensuring performance, longevity, and reliability in demanding industrial applications. Different bronze alloys offer unique combinations of strength, wear resistance, corrosion resistance, and machinability. VIIPLUS, a professional manufacturer based in China, understands this necessity and supplies a range of high-quality Bronze Bearing Materials designed to Meet Your Industry Standards!

Whether you need the widely used C93200 (RG7), the high-strength C95400, or the robust C86300 often used in graphite bearings, VIIPLUS has the capability and expertise to deliver.

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Let's delve into some of the key cast bronze alloys we offer:

1. C93200 / RG7 / SAE660 / CC493K: The Versatile Workhorse

Often referred to by various designations including RG7 bronze bearings, SAE660, or C93200, this leaded tin bronze (CuSn7Zn4Pb7) is arguably the most common general-purpose bearing bronze alloy worldwide.

• Key Properties: Offers an excellent balance of properties:

  • Very good machining properties.

  • Good strength and hardness levels.

  • Excellent wear resistance and anti-friction qualities (enhanced by tin and lead content).

  • Reasonable corrosion resistance in seawater and brine (not subject to dezincification).

  • Good dry running properties (especially when graphite plugged).

  • Pressure-tight characteristics.

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• Typical Uses: Its versatility makes it ideal for:

  • General utility bearings and bushings.

  • Wear plates and thrust washers.

  • Pump and valve components (housings, bushings).

  • Water and steam fittings.

  • Applications with medium loads and speeds requiring adequate lubrication or self-lubrication (graphite plugged).

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• VIIPLUS Supply: We supply C93200 / RG7 bronze graphite bearings, plain bearings, flanges, wear plates, thrust washers, and custom parts in this alloy.

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Technical Snapshot (RG7 / CC493K / C93200):

• Chemical Composition (Nominal %): Cu 81-85, Sn 6-8, Pb 5-8, Zn 2-5, Ni 2 Max

• Mechanical Properties (Typical Minimums):

  • Yield Strength (Rp N/mm²): ≥ 120

  • Tensile Strength (Rm N/mm²): ≥ 260

  • Elongation (A5): ≥ 12%

  • Hardness: ≥ 70 HB

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• Mating Material: Recommended surface hardness min. 200HB, roughness < 1 Ra.

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2. C95400 Aluminum Bronze (C954): High Strength and Exceptional Wear Resistance

When applications demand higher strength and superior resistance to wear and fatigue, C95400 Aluminum Bronze is an excellent choice. It's the most popular all-purpose aluminum bronze alloy.

• Key Properties:

  • High yield and tensile strength.

  • Good ductility and weldability.

  • Exceptional resistance to wear, fatigue, and deformation, especially under shock or overload conditions.

  • Good corrosion resistance.

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• Typical Uses: Ideal for more demanding applications:

  • Heavy-duty bearings and bushings.

  • Gears and worm gears.

  • Valve components (seats, guides).

  • Wear plates and wear strips in high-load situations.

  • Machine parts requiring high strength.

  • Heavily loaded pump parts.

  • Sleeve bearings for excavators and construction machinery.

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• VIIPLUS Supply: VIIPLUS produces C95400 Alloy bearings and bushings as a standard stock product and can manufacture custom parts.

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Technical Snapshot (C95400):

• Chemical Composition (%): Cu 83.0 min, Al 10.00-11.50, Fe 3.00-5.00, Ni 1.5 max, Mn 0.50 max (Simplified - other elements typically <0.5 total)

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3. C86300 Manganese Bronze: Robust Strength for Heavy Loads

C86300 Manganese Bronze is known for its very high strength and hardness, making it suitable for structural applications and bearings under severe loads, often used in conjunction with graphite plugs for self-lubrication.

• Key Properties:

  • High tensile and yield strength.

  • Good wear resistance, especially when lubricated or self-lubricated.

  • Excellent load-carrying capacity.

  • Good corrosion resistance.

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• Typical Uses: Frequently specified for:

  • Graphite Bearings for maintenance-free operation under heavy loads.

  • Bushings and components used in die sets, metal stamping dies, and molds.

  • Bearings for special machines and heavy equipment.

  • Structural components requiring high strength and bearing properties.

  • Slow-speed, high-load pivot bushings.

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• VIIPLUS Supply: We manufacture C86300 Manganese Bronze graphite bearings and other components tailored to demanding applications.

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VIIPLUS: Your Partner for Standard and Custom Bronze Bearings

At VIIPLUS, we are committed to providing bronze bearing solutions that precisely meet your requirements and industry standards. We offer:

• Wide Range of Alloys: Including C93200 (RG7), C95400, C86300, and others upon request.

• Multiple Bearing Forms: Standard straight bushings, flange bearings, thrust washers, wear plates, and custom-designed parts manufactured according to ISO, DIN, or your specific drawings.

• Graphite Plugged Options: Providing maintenance-free, self-lubricating solutions across various bronze alloys for enhanced wear resistance and longevity, especially under high load or difficult lubrication conditions.

• Quality Manufacturing: Utilizing advanced casting and machining processes to ensure consistent quality and performance.

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Choose VIIPLUS for your bronze bearing material needs and benefit from our expertise, quality, and commitment to meeting your industry standards.

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