GQZ SB100A Metric Radial Spherical Plain Bearing 100×160×88mm Grease Fitted Steel-on-Steel Bushing For Heavy Duty Swing Joints

SB100A belongs to SB-A series oil-lubricated radial spherical plain bearing, adopting steel-on-steel friction matching between inner and outer rings with built-in grease injection hole for periodic supplementary lubrication. The spherical sliding surface allows maximum 5° self-aligning deflection angle, capable of bearing large radial load and bidirectional axial load at the same time. It is widely applied to swing, oscillating and misaligned connecting joints of various heavy industrial machinery.

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

Complete dimension drawings and load data available on request.

1. Steel-on-steel contact structure provides ultra-high static and dynamic load capacity to adapt long-term heavy-duty swing operation
2. Built-in spherical sliding surface realizes 5° automatic self-alignment, compensates assembly error and shaft bending deflection
3. Reserved grease injection hole facilitates regular lubrication, effectively reducing sliding friction and prolonging service life
4. Separable inner and outer ring design supports independent interference fitting on shaft and housing, easy disassembly and maintenance
5. Compact integrated structure occupies less installation space compared with rod end bearing assembly
6. Standard ISO metric size, fully interchangeable with same-spec spherical plain bearings
7. Customizable options: double-side rubber dust seals, anti-rust surface coating, OEM laser marking, high-temperature resistant grease
8. Effectively reduce swing friction noise, prevent metal seizure and cut long-term equipment maintenance costs.

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

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

Products exported to over 50 countries worldwide

Full strict inspection on hardness, spherical surface finish, load capacity and swing flexibility before delivery

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 internal and external spherical surfaces

Molybdenum disulfide solid lubricant coating treatment

Lubrication hole processing and deburring finishing

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

If you need SB100A steel-on-steel spherical plain bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional installation interference fit suggestion
• Custom sealed structure and high-temperature lubrication solutions
• Competitive factory direct price
• Contact our sales team for full technical datasheets and formal offer.