What are the classification characteristics of plain bearings

2021-09-06 11:36:12

Spherical plain bearing is a kind of spherical plain bearing. Its sliding contact surface is an inner spherical surface and an outer spherical surface. It can rotate and swing at any angle during movement. It is made by a variety of special processing methods such as surface phosphating, cratering, pad inlay, spraying and so on. Articulated bearing has the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning and good lubrication.

1、 Radial joint bearing

(1) Ge... E type: single outer ring, no lubricating oil groove. It can bear radial load and small axial load in either direction.

(2) Ge... Es type: single seam outer ring with lubricating oil groove. It can bear radial load and small axial load in either direction.

(3) Ge... Es-2rs, geew... Es-2rs: single seam outer ring with lubricating oil groove and sealing rings on both sides. It can bear radial load and small axial load in either direction.

(4) Ge... ESN type: single seam outer ring, ge... Xsn type: double seam outer ring (split outer ring), with lubricating oil groove, and the outer ring has stop groove. It can bear radial load and small axial load in either direction. However, when the axial load is borne by the stop ring, its ability to bear the axial load is reduced.

(5) Ge... HS type: the inner ring has lubricating oil groove and double half outer ring. The clearance can be adjusted after wear. It can bear radial load and small axial load in either direction.

(6) Ge... DE1 type: the inner ring is hardened bearing steel and the outer ring is bearing steel. The inner ring is extruded during assembly, with lubricating oil groove and oil hole. Bearings with inner diameter less than 15mm shall be free of lubricating oil groove and oil hole. It can bear radial load and small axial load in either direction.

(7) Ge... Dem1 type: the inner ring is hardened bearing steel and the outer ring is bearing steel. When the inner ring is assembled, it is extruded. After the bearing is installed into the bearing seat, the end groove is pressed out on the outer ring to fix the bearing axially. It can bear radial load and small axial load in either direction.

(8) Ge... DS type: the outer ring has assembly groove and lubrication groove. Limited to large bearings. It can bear radial load and small axial load in either direction (one side of the assembly groove cannot bear axial load).

2、 Angular contact plain bearing

GAC... S-type inner and outer rings are hardened bearing steel, and the outer ring is provided with oil groove and oil hole. It can bear radial load and axial (combined) load in one direction.

Thrust joint bearing

GX... S-type shaft ring and seat ring are hardened bearing steel; The seat ring has oil grooves and oil holes. It can bear axial load or combined load in one direction (at this time, its radial load value shall not be greater than 0.5 times of the axial load value).

3、 Rod end joint bearing

(1) Si... E type is the assembly of ge... E type bearing and rod end. The rod end is provided with internal thread, the material is carbon structural steel, and there is no lubricating oil groove. It can bear radial load and axial load less than or equal to 0.2 times radial load in any direction.

(2) Sa... E type is the assembly of ge... E type bearing and rod end. The rod end is provided with external thread, and the material is carbon structural steel; Without lubricating oil groove, it can bear radial load and axial load less than or equal to 0.2 times radial load in any direction.

(3) Si... Es type is the assembly of ge... Es type bearing and rod end. The rod end is provided with internal thread, and the material is carbon structural steel; There are lubricating oil grooves. It can bear radial load and axial load less than or equal to 0.2 times radial load in any direction.

(4) Sa... Es is the assembly of ge... Es bearing and rod end. The rod end is provided with external thread, and the material is carbon structural steel; There are lubricating oil grooves. It can bear radial load and axial load less than or equal to 0.2 times radial load in any direction.

(5) Sib... S-shaped rod end with internal thread, made of carbon structural steel; The inner ring is hardened bearing steel; There are lubricating oil grooves. It can bear radial load and axial load less than or equal to 0.2 times radial load in any direction.

(6) SAB... S-shaped rod end with external thread, made of carbon structural steel; The inner ring is hardened bearing steel; There are lubricating oil grooves. It can bear radial load and axial load less than or equal to 0.2 times radial load in any direction.

(7) SQ... Type is ball joint rod end plain bearing, and the rod end is carbon structural steel; The ball joint is carburized steel. It can bear radial load and small axial load in either direction.

4、 Self lubricating spherical plain bearing

(1) Ge... C and ge... T: extruded outer ring, and the sliding surface of the outer ring is sintered bronze composite; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. Limited to small size bearings. The outer ring is bearing steel, and the sliding surface is a layer of PTFE fabric. The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear the load in the same direction, and can bear the smaller axial load in any direction while bearing the radial load.

(2) Ge... Cs-2z type: the outer ring is bearing steel and the sliding surface is sintered bronze composite; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium; Dust cover on both sides. It can bear the load in the same direction, and can bear the smaller axial load in any direction while bearing the radial load.

(3) Geew... T type: the outer ring is bearing steel, and the sliding surface is a layer of PTFE fabric; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear the load in the same direction, radial load and small axial load in any direction.

(4) Ge... F type: the outer ring is hardened bearing steel, the sliding surface is glass fiber reinforced plastic with PTFE as additive, the inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can withstand medium radial load with constant direction.

(5) Ge... F2 type: the outer ring is glass fiber reinforced plastic, and the sliding surface is glass fiber reinforced plastic with PTFE as additive; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can withstand medium radial load with constant direction.

(6) Ge... FSA outer ring is medium carbon steel, and the sliding surface is composed of glass fiber reinforced plastic disc with PTFE as additive, which is fixed on the outer ring with a holder; The inner ring is hardened bearing steel. For large and extra large bearings. It can bear large radial load.

(7) Ge... FIH type outer ring is hardened bearing steel; The inner ring is medium carbon steel, and the sliding surface is composed of glass fiber reinforced plastic disc with PTFE as additive, which is fixed on the inner ring with a holder; Double half outer ring. For large and extra large bearings. It can bear large radial load.

5、 Self lubricating angular contact spherical plain bearing

GAC... F-type outer ring is hardened bearing steel; The sliding surface is glass fiber reinforced plastic with PTFE as additive; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear radial load and axial (combined) load in one direction.

Self lubricating thrust joint bearing

GX... F type race is made of hardened bearing steel, the sliding surface is made of glass fiber reinforced plastic with PTFE as additive, the shaft ring is made of hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear axial load or combined load in one direction (at this time, the radial load value shall not be greater than 0.5 times of the axial load value).

6、 Self lubricating rod end plain bearing

(1) Si... C type is the assembly of Ce... C type bearing and rod end. The rod end has internal thread and is made of carbon structural steel. It can bear the load with constant direction. While bearing radial load, it can bear axial load less than or equal to 0.2 times radial load in any direction.

(2) Sa... C type is the assembly of Ce... C type bearing and rod end. The rod end is externally threaded and made of carbon structural steel. It can bear the load with constant direction. While bearing radial load, it can bear axial load less than or equal to 0.2 times radial load in any direction.

(3) Si... Cs-2z is the assembly of ge... Cs-2z bearing and rod end. The rod end has internal thread and is made of carbon structural steel. While bearing radial load, it can bear axial load less than or equal to 0.2 times radial load in any direction.

(4) Sa... Cs-2z is the assembly of ge... Cs-2z bearing and rod end. The rod end is externally threaded and made of carbon structural steel. It can bear the load with constant direction. While bearing radial load, it can bear axial load less than or equal to 0.2 times radial load in any direction.

(5) Sib... C-shaped rod end is provided with internal thread, the material is carbon structural steel, and the sliding surface is sintered bronze composite; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear radial load with constant direction.

(6) SAB... C-shaped rod end is provided with external thread, the material is carbon structural steel, and the sliding surface is sintered bronze composite; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear radial load with constant direction.

(7) Sib... F-type rod end is provided with internal thread, the material is carbon structural steel, and the sliding surface is glass fiber reinforced plastic with PTFE as additive; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear radial load with constant direction.

(8) SAB... F-shaped rod end is provided with external thread, the material is carbon structural steel, and the sliding surface is glass fiber reinforced plastic with PTFE as additive; The inner ring is hardened bearing steel, and the sliding surface is plated with hard chromium. It can bear radial load with constant direction.

(9) SQ... L type is made of special self-lubricating alloy material, which can bear radial load and small axial load in either direction.