CuSn8 Flanged Bearings (505550 Series) in Container Wheels: Applications and Benefits

CuSn8 Flanged Bearings (505550 Series) in Container Wheels: Applications and Benefits

CuSn8, a high-strength, wear-resistant, and corrosion-resistant phosphor bronze alloy (DIN 17662 standard), is commonly used in the manufacturing of wrapped flanged bushings, designed for low-speed, high-load sliding applications such as construction, agriculture, forestry, and container handling equipment. These bearings typically feature diamond-shaped or round lubrication grooves that store grease, extending maintenance intervals and improving performance.

Specifications of CuSn8 Flanged Bearings (505550 Series):

• Inner Diameter (ID): 50 mm (matching shaft diameter)

• Outer Diameter (OD): 55 mm (wall thickness 2.5 mm for high strength)

• Flange Diameter: 65 mm (for axial positioning and preventing axial displacement)

• Length (L): 50 mm (standard length for moderate stroke applications)

• Material Characteristics: CuSn8P (phosphor bronze alloy), hardness of HB 65-75, temperature resistance up to 250°C, ideal for harsh environments like port dust and seawater corrosion.

Applications of CuSn8 Flanged Bearings in Container Wheels

Container wheels are commonly used in port cranes, forklifts, trailers, and straddle carriers, where they endure heavy loads (over 10 tons), impacts, and vibrations. CuSn8 flanged bearings excel in these applications thanks to their self-lubricating design, which reduces friction and resists corrosion. Below are some key applications:

1. Wheel Axle Pivot (Wheel Axle Support)

   • Application Description: Installed between the hub and axle, these bearings act as pivot bearings to support wheel rotation and axial loads. The flange part is fixed to the hub casing to prevent displacement.

   • Benefits & Solutions: High load capacity (>100 MPa), diamond-shaped grooves store grease for low-speed wheel rotation (<1 m/s), reducing maintenance intervals (>500 hours). CuSn8 bearings resist salt mist corrosion in port environments, extending wheel lifespan by 2-3 times.

2. Steering Joint

   • Application Description: Used in the wheel steering mechanism to withstand oscillatory movements and lateral forces.

   • Benefits & Solutions: The flange design provides axial positioning, while CuSn8’s wear resistance handles rough surfaces (such as those found in ports), reducing noise and vibration.

3. Suspension Mount

   • Application Description: Connects the wheel to the container frame, absorbing shock loads.

   • Benefits & Solutions: The thin-wall design reduces weight (<0.2 kg per piece), suitable for heavy-duty container wheels (ID 50 mm matching standard shafts), with lubrication holes ensuring smooth performance in wet environments.

Installation and Maintenance Suggestions:

• Installation: Pre-fill with lithium-based grease and ensure the flange faces the load direction. Regularly inspect the lubrication grooves.

• Alternative: For maintenance-free operation, upgrade to a composite bearing with embedded graphite (CuSn8 + solid lubricants).

Supplier Reference: China VIIPLUS

In container wheel applications, using CuSn8 flanged bearings can reduce downtime by up to 30%, making them an ideal choice for port equipment manufacturers.

CuSn8 Flanged Bearings in Metal Storage Equipment

CuSn8 bearings are also well-suited for applications in metal storage equipment, such as racking systems, automatic storage/retrieval systems (AS/RS), pallet conveyors, and lifts. Bearings in these systems are typically used in sliding doors, roller tracks, and hinges, where they must withstand repeated opening and closing motions and loads.

Specifications for Metal Storage Equipment Bearings:

• Inner Diameter (ID): 40 mm

• Outer Diameter (OD): 44 mm

• Flange Diameter: 55 mm

• Length (L): 50 mm

• Material Characteristics: CuSn8P, suitable for medium-speed (<2 m/s) and medium-load (50-80 MPa) applications.

Applications of CuSn8 Flanged Bearings in Metal Storage Equipment:

1. Sliding Rail Roller

   • Application Description: Installed in shelving sliding tracks or pallet rollers to support horizontal movement. The flange secures the roller housing.

   • Benefits & Solutions: Low friction (μ <0.15), lubrication grooves reduce dust accumulation, suitable for warehouse automation systems without deformation under load.

2. Hinge Pivot

   • Application Description: Used in warehouse doors or foldable shelves to handle oscillatory movements.

   • Benefits & Solutions: The flange provides axial support, and CuSn8’s corrosion resistance is ideal for high-humidity warehouse environments, extending the door’s opening/closing lifespan to over 10,000 cycles.

3. Lift Arm Joint

   • Application Description: Connects the lift arm to the storage rack in manual or electric lifters.

   • Benefits & Solutions: Compact size fits narrow spaces, self-lubricating for medium loads, and reduces noise. The lubrication hole design ensures maintenance intervals >1 year.

Installation and Optimization Suggestions:

• Installation: Insert the flange into the groove and secure with bolts. After initial lubrication, check after 100 hours of operation.

• Optimization: For dusty environments, opt for versions with PTFE coating for enhanced wear resistance.

Supplier Reference: VIIPLUS, offering bulk customization with prices.

In metal storage systems, these bushings can improve operational efficiency by 20% and reduce energy consumption. The versatility of CuSn8 ensures reliability and cost-effectiveness in these applications.

For custom CAD drawings, samples, or further details, it’s recommended to consult with a professional manufacturer for tailored solutions.