SB130 Double Split Outer Ring Spherical Plain Bearing for Heavy Machinery

The SB130 is a heavy-duty radial spherical plain bearing with a double-split outer ring and one-piece inner ring, featuring a wide spherical sliding contact interface. It is manufactured from high carbon chromium bearing steel with phosphate surface treatment and molybdenum disulfide (MoS₂) sintered coating, providing low friction, excellent wear resistance and corrosion protection.

This bearing can carry heavy radial loads combined with bidirectional axial loads, and automatically compensates for shaft deflection and mounting misalignment. It is ideal for low-speed, heavy-load, oscillating and tilting motion applications, widely used in construction machinery articulation points, hydraulic cylinders, truck suspension systems, metallurgical equipment and mining machinery.

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• Double-split outer ring design enables easy assembly and disassembly, especially suitable for restricted-space articulation positions
• Wide spherical contact surface delivers ultra-high load capacity, supporting both radial loads and bidirectional axial thrust loads
• High carbon chromium bearing steel base + phosphate + MoS₂ coating ensures low friction, excellent wear and corrosion resistance
• Self-aligning capability compensates for shaft deflection and mounting errors, adapts to oscillating and tilting working conditions
• Outstanding shock load resistance, perfectly matched for low-speed heavy-duty industrial scenarios
• Standard boundary dimensions for direct interchangeability with mainstream brand counterparts

👉 Helps reduce maintenance cost and improve overall equipment efficiency

This bearing is widely used in:

• Hydraulic cylinders and articulation mechanisms of construction machinery
• Rotating and pivoting supports of engineering and building equipment
• Heavy truck suspension and buffer devices
• Articulation points of metallurgical and heavy industrial equipment
• Oscillating parts of water conservancy and lifting machinery
• Mining machinery and bulk material handling equipment

👉 Ideal for customers looking for reliable heavy-duty bearing solutions

👉 Full technical data and 2D/3D drawings available upon request

• 25+ years experience in industrial bearing manufacturing
• Exported to 50+ countries worldwide
• Rich experience in OEM & custom bearing projects
• Strict full-process quality inspection before shipment
• Fast professional response within 24 hours
• Stable bulk supply for long-term cooperation

👉 We focus on quality, reliability and long-term partnership

• Raw material composition and hardness inspection
• Precision turning and grinding process control
• Controlled heat treatment for uniform hardness and microstructure
• Clearance, rotation and friction torque testing
• 100% final appearance and dimension inspection before delivery

👉 Ensures consistent high performance for every bearing

Looking for a reliable heavy-duty spherical plain bearing supplier?

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• Fast quotation within 24 hours
• Technical support from experienced engineers
• Custom solutions for your application
• Competitive factory direct price

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