GQZ SB-110A Radial Spherical Plain Bearing 110×170×93mm Lubricatable Steel-On-Steel Spherical Plain Bushing

SB-110A is SB-A series open-type radial spherical plain bearing with steel-on-steel friction pair. Outer ring is equipped with lubrication hole for periodic grease replenishment. The spherical sliding surface allows maximum 5° angular tilt to absorb shaft deflection and assembly misalignment. It can bear heavy radial load and moderate bidirectional axial load simultaneously. Suitable for low-speed rotation, swing and oscillating motion. Widely used in construction machinery hinges, hydraulic cylinder joints, lifting equipment and metallurgical articulated assemblies.

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

Model: SB-110A

Dimensions: d110 mm, D170 mm, B93 mm, C80 mm

Net weight: approx 8.55 kg

Dynamic load rating Cd: 1260 kN

Static load rating Cs: 7530 kN

Allowable tilt angle: 5°

Structure: Open radial spherical plain bearing, SB-A lubrication type

Sliding surface: Steel-on-steel phosphated surface

Feature: Outer ring with grease filling hole

Seal: Open type; sealed version optional upon request

Material: GCr15 bearing chrome steel

Complete dimension drawings and load data available on request.

1. SB-A standard lubrication structure, outer ring grease hole facilitates regular maintenance without disassembly
2. Steel-on-steel contact surface, ultra-high static load capacity, outstanding resistance to heavy impact loads
3. Spherical sliding surface compensates alignment error and shaft bending during operation
4. Adaptable to oscillating motion, tilting movement and low-speed continuous rotation
5. High rigidity, stable performance under alternating heavy loads for outdoor harsh working conditions
6. Customizable options: OEM laser marking, double lip seal assembly, surface strengthening treatment
7. Effectively reduce sliding wear and extend service life of mechanical hinge connections.

• Excavator, loader connecting rod and hinge assemblies
• Hydraulic cylinder articulated end joints
• Crane, lifting platform swing and supporting positions
• Mining machinery and large conveying equipment hinged parts
• Metallurgical equipment, steel mill swing transmission components
• Heavy machinery requiring angular compensation under mixed radial and axial loads

25 years professional bearing manufacturer

Products exported to over 50 countries worldwide

Strict inspection on raw material hardness, spherical surface finish and dimensional tolerance before delivery

24-hour professional technical support for installation and lubrication maintenance guidance

Sufficient bulk stock for construction machinery and industrial distributors

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

GCr15 raw material chemical composition and hardness inspection

Complete quenching & tempering heat stabilization treatment

Precision spherical superfinishing grinding for inner ring and outer ring

Lubrication hole precision machining and deburring processing

Full dimension tolerance, surface roughness and load performance testing

If you need SB-110A spherical plain bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional lubrication cycle and mounting suggestion
• Custom sealing and marking solutions
• Competitive factory direct price
• Contact our sales team for full technical datasheets and formal offer.