Angular contact spherical plain bearing steel on steel. Treated with molybdenum disulphide mos2, regreasable. For use at unidirectional, dynamic radial and additional axial loads.
Steel-on-Steel | Metric Series | Maintenance Required
SPB GAC…S Angular Contact Spherical Plain Bearings are designed for applications requiring the accommodation of combined radial and axial loads, particularly where axial loads act predominantly in one direction.
Featuring a steel-on-steel sliding contact design, the GAC…S series consists of an inner ring with a convex spherical sliding surface and an outer ring with a corresponding concave spherical sliding surface. The contact surfaces are inclined relative to the bearing axis, allowing the bearing to support combined loads while accommodating angular movement and misalignment.
The inner and outer rings are typically manufactured from hardened bearing steel, with phosphated surfaces and molybdenum disulfide (MoS₂) treatment to help reduce sliding friction.
GAC…S bearings are maintenance-required bearings. The outer ring incorporates a lubrication groove and lubrication holes to facilitate grease replenishment during operation.
This series is suitable for industrial machinery and mechanical assemblies where reliable load support, angular movement, and regular lubrication are required.
1. Angular Contact Design
The inclined spherical sliding surfaces enable the bearing to accommodate combined radial and axial loads.
A single bearing is designed to support axial loading in one direction. Where axial loads act in both directions, an appropriate opposed bearing arrangement may be required.
2. Steel-on-Steel Sliding Contact
The hardened steel inner and outer rings provide load-carrying capability for demanding mechanical applications.
3. Molybdenum Disulfide Surface Treatment
The sliding contact surfaces are typically treated with MoS₂ to help reduce friction during operation.
4. Relubrication Design
The outer ring features a lubrication groove and lubrication holes, allowing grease to be replenished as part of regular maintenance.
5. Angular Misalignment Capability
The spherical sliding contact design accommodates limited angular misalignment between connected components.
The permissible misalignment angle depends on the bearing size and operating conditions.
6. Metric Dimensions
The GAC…S series is manufactured in metric dimensions and is available in a range of sizes to meet different installation requirements.
| Item | Description |
|---|---|
| Bearing Type | Angular Contact Spherical Plain Bearing |
| Series | GAC…S |
| Dimension System | Metric |
| Design | Open Type |
| Sliding Contact | Steel-on-Steel |
| Inner Ring | Hardened Bearing Steel |
| Outer Ring | Hardened Bearing Steel |
| Surface Treatment | Typically Phosphated and MoS₂ Treated |
| Lubrication | Grease Lubrication |
| Maintenance | Required |
| Load Direction | Combined Radial and Unidirectional Axial Loads |
| Lubrication Structure | Outer Ring Groove and Lubrication Holes |
| Misalignment | Permitted Within Specified Limits |
Specific dimensions, load ratings, materials, and operating limits should be confirmed according to the corresponding SPB product drawings and technical specifications.
GAC…S Angular Contact Spherical Plain Bearings can be considered for mechanical applications involving combined loading and angular movement, including:
Hydraulic cylinders and actuator connections
Construction and engineering machinery
Agricultural equipment
Industrial lifting and handling equipment
Mechanical linkage systems
Heavy-duty industrial machinery
Articulated mechanical assemblies
Actual suitability depends on the bearing arrangement, applied loads, lubrication conditions, and operating environment.
GAC…S bearings feature steel-on-steel sliding contact surfaces and require regular lubrication.
The lubrication groove and lubrication holes in the outer ring help distribute grease to the sliding contact surfaces.
Proper lubrication helps reduce friction and wear during operation.
Lubrication intervals should be determined according to operating loads, movement frequency, temperature, environmental conditions, and the selected lubricant.
When selecting GAC…S Angular Contact Spherical Plain Bearings, the following factors should be considered:
Radial and axial load requirements
Direction of axial loading
Bearing dimensions and installation space
Permissible angular misalignment
Lubrication and maintenance conditions
Operating temperature and environment
For applications involving axial loads in both directions, the bearing arrangement should be evaluated to determine whether two opposing angular contact spherical plain bearings are required.
Zhangzhou SPB Bearings Corporation Limited specializes in the manufacturing of spherical plain bearings, rod end bearings, and customized bearing solutions.
We focus on consistent product quality, reliable manufacturing processes, and meeting customer requirements.
Our team can assist customers with product selection, dimensional requirements, and customized bearing inquiries.
Contact SPB Bearings for GAC…S Angular Contact Spherical Plain Bearings, product specifications, and quotations.
Zhangzhou SPB Bearings Corporation Limited is a specialized manufacturer dedicated to the development and production of spherical plain bearings and related bearing products. With over 20 years of experience in spherical plain bearing technology and manufacturing, we serve customers across a wide range of industrial sectors with dependable products and application-oriented solutions.....[ Read More >>]
