GQZ SB110A Metric Radial Spherical Plain Bearing 110×180×98mm Grease Fitted Steel-on-Steel Bushing For Heavy Duty Swing Joints

SB110A is heavy-duty SB-A series radial spherical plain bearing with steel-on-steel sliding pairs, fitted with an independent grease port for periodic lubrication. Its spherical sliding surface enables up to 5° self-aligning tilt to offset assembly deviation and shaft deflection. The bearing bears large radial loads together with bidirectional axial loads, widely adopted on oscillating, pivoting and misaligned connecting structures of all kinds of heavy industrial equipment.

Formal quotation will be sent within 24 hours upon your inquiry.

Model: SB110A

Main dimensions: d110 mm, D180 mm, Inner ring width B98 mm, Outer ring width C82 mm

Spherical diameter dk: 168 mm

Permissible tilt angle: 5°

Net weight: 10.5 kg

Dynamic load rating Cr: 1320 kN

Static load rating Cor: 7850 kN

Structure: Open type without seals, outer ring equipped with lubrication hole

Material: GCr15 bearing chrome steel, sliding surface coated with molybdenum disulfide solid lubricant

Precision grade: Standard P0; P6 / P5 precision grade available for customization

Complete dimension drawings and load performance data available on request.

1. Steel-on-steel friction pair delivers ultra-high static and dynamic load capacity for continuous heavy swing operation
2. Built-in spherical sliding surface offers 5° automatic self-alignment to compensate installation errors and shaft bending
3. Reserved grease injection hole supports regular refueling to lower friction and extend overall service life
4. Separable inner and outer ring design allows separate interference fitting on shaft and housing, simple disassembly and maintenance
5. Compact integrated layout occupies less installation space compared to assembled rod end bearing units
6. Standard ISO metric dimension, fully interchangeable with spherical plain bearings of the same specification
7. Customizable options: double-sided rubber dust seals, anti-corrosion surface coating, OEM laser marking, high temperature resistant grease

Effectively cut swing friction noise, avoid metal seizure and reduce long-term equipment maintenance expenditure.

• Hydraulic cylinders, swing valve joints and hydraulic drive actuators
• Excavators, loaders and other construction machinery arm pivot connecting components
• Heavy oscillating transmission assemblies on agricultural machinery
• Large swing supports for automated conveying equipment and rotary fixtures
• Suspension and linkage joints of mining equipment and engineering vehicles
• General heavy machinery with frequent oscillating and misaligned motion

25 years professional manufacturer of spherical plain bearings and rod end bearings

Products exported to more than 50 countries worldwide

Strict full inspection on hardness, spherical surface finish, load capacity and swing flexibility before shipment

24-hour professional technical support for bearing matching and installation guidance

Sufficient bulk stock for hydraulic, construction and engineering machinery distributors

We provide stable dimensional accuracy, reliable heavy-load swing performance and long-term cooperative support.

GCr15 raw material chemical composition and hardness inspection

Precision superfinishing grinding for inner and outer spherical surfaces

Molybdenum disulfide solid lubricant coating treatment

Lubrication hole machining and deburring finishing

Full dimensional tolerance, static & dynamic load and swing flexibility testing

If you need SB110A steel-on-steel spherical plain bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional installation interference fit suggestions
• Custom sealed structure and high-temperature lubrication solutions
• Competitive factory direct price

Contact our sales team for full technical datasheets and formal offer.