The structure of the spherical plain bearing is simpler than that of the rolling bearing, which is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. Today, this article will introduce to you the classification of spherical plain bearings and what are their characteristics? Interested friends can follow this editor to take a look!
Classification and Features:
Radial spherical plain bearing
(1) GE…E type: single outer ring, no lubricating oil groove. Can withstand radial loads and small axial loads in either direction.
(2) GE…ES type: single-slit outer ring with lubricating oil groove. Can withstand radial loads and small axial loads in either direction.
(3) GE…ES-2RS type, GEEW…ES-2RS type: single-slit outer ring, with lubricating oil groove and sealing rings on both sides. Can withstand radial loads and small axial loads in either direction.
(4) GE…ESN type: single-slit outer ring, GE…XSN type: double-slit outer ring (split outer ring), with lubricating oil groove, and outer ring with stop groove. Can withstand radial loads and small axial loads in either direction. However, when the axial load is borne by the snap ring, its ability to bear the axial load is reduced.
(5) GE…HS type: inner ring has lubricating oil groove, double half outer ring, the clearance can be adjusted after wear. Can withstand radial loads and small axial loads in either direction.
(6) GE…DE1 type: the inner ring is hardened bearing steel, and the outer ring is bearing steel. When the inner ring is assembled, it is extruded and formed, and there are lubricating oil grooves and oil holes. Bearings with an inner diameter of less than 15mm have no lubricating oil grooves and oil holes. Can withstand radial loads and small axial loads 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 and formed. After the bearing is installed in the bearing seat, the end groove is pressed out on the outer ring to fix the bearing axially. Can withstand radial loads and small axial loads in either direction.
(8) GE…DS type: the outer ring has an assembly groove and a lubricating groove. Only limited to large size bearings. Can bear radial load and small axial load in either direction (one side of the assembly groove cannot bear axial load).
Angular contact spherical plain bearings
GAC…S type The inner and outer rings are all hardened bearing steel, and the outer ring has oil grooves and oil holes. Can withstand radial loads and axial (combined) loads in one direction.
Thrust spherical plain bearing
Type GX…S Shaft washer and seat washer are hardened bearing steel; seat ring has oil grooves and oil holes. It can bear the axial load or combined load in one direction (the radial load value shall not be greater than 0.5 times the axial load value at this time).
Rod ends
(1) SI…E type It is an assembly of GE…E type bearing and rod end. Rod end with internal thread, material is carbon structural steel, no lubricating oil groove. It can withstand radial loads and axial loads less than or equal to 0.2 times the radial load in any direction.
(2) Type SA…E It is an assembly of type GE…E bearing and rod end. The rod end has external threads and is made of carbon structural steel; without lubricating oil grooves, it can withstand radial loads and axial loads less than or equal to 0.2 times the radial load in any direction.
(3) SI…ES type It is an assembly of GE…ES type bearing and rod end. The rod end is internally threaded, and the material is carbon structural steel; there is a lubricating oil groove. It can withstand radial loads and axial loads less than or equal to 0.2 times the radial load in any direction.
(4) Type SA…ES It is an assembly of type GE…ES bearing and rod end. Rod end with external thread, material is carbon structural steel; lubricating oil groove. It can withstand radial loads and axial loads less than or equal to 0.2 times the radial load in any direction.
(5) SIB…S type Rod end with internal thread, material is carbon structural steel; inner ring is hardened bearing steel; there is lubricating oil groove. It can withstand radial loads and axial loads less than or equal to 0.2 times the radial load in any direction.
(6) SAB…S type Rod end with external thread, material is carbon structural steel; inner ring is hardened bearing steel; there is lubricating oil groove. It can withstand radial loads and axial loads less than or equal to 0.2 times the radial load in any direction.
(7) SQ… type is a ball joint rod end bearing, the rod end is carbon structural steel; the ball head is carburized steel. Can withstand radial loads and small axial loads in either direction.
Self-lubricating radial spherical plain bearings
(1) GE…C type and GE…T type: the outer ring is extruded, and the sliding surface of the outer ring is made of sintered bronze composite material; the inner ring is hardened bearing steel, and the sliding surface is plated with hard chrome. Only 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 with hard chrome plating on the sliding surface. It can bear the load in the same direction, and can bear the small 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 material; the inner ring is hardened bearing steel, and the sliding surface is plated with hard chrome; both sides have dust caps. It can bear the load in the same direction, and can bear the small 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 chrome. It can bear the load in the same direction, and can bear the radial load and the small axial load in any direction at the same time.
(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 chrome. Can withstand moderate radial loads in the same direction.
(5) GE…F2 type: the outer ring is glass fiber reinforced plastic, 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 chrome. Can withstand moderate radial loads in the same direction.
(6) GE…FSA type The outer ring is made of medium carbon steel, the sliding surface is composed of glass fiber reinforced plastic discs with polytetrafluoroethylene as the additive, and is fixed on the outer ring with a retainer; the inner ring is hardened bearing steel. For large and extra large bearings. Can withstand large radial loads.
(7) The outer ring of GE…FIH type is hardened bearing steel; the inner ring is medium carbon steel, and the sliding surface is composed of glass fiber reinforced plastic discs with polytetrafluoroethylene as an additive, and is fixed on the inner ring with a retainer; Double half outer ring. For large and extra large bearings. Can withstand large radial loads.
Self-lubricating angular contact spherical plain bearings
GAC…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 chrome. Can withstand radial loads and axial (combined) loads in one direction.
Self-lubricating thrust spherical plain bearings
GX…F type The seat ring is made of hardened bearing steel, the sliding surface is glass fiber reinforced plastic with PTFE as additive, the shaft washer is made of hardened bearing steel, and the sliding surface is plated with hard chrome. It can withstand axial load or combined load in one direction (the radial load value shall not be greater than 0.5 times the axial load value at this time).
Self-lubricating rod ends
(1) SI…C type It is an assembly of CE…C type bearing and rod end. The rod end is internally threaded, and the material is carbon structural steel. Can withstand loads in the same direction. While bearing radial load, it can bear axial load less than or equal to 0.2 times radial load in any direction.
(2) Type SA…C It is an assembly of type CE…C bearing and rod end. Rod end with external thread, material is carbon structural steel. Can withstand loads in the same 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 type It is an assembly of GE…CS-2Z type bearing and rod end. The rod end is internally threaded, and the material is 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) Type SA…CS-2Z It is an assembly of type GE…CS-2Z bearing and rod end. Rod end with external thread, material is carbon structural steel. Can withstand loads in the same 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 type Rod end with internal thread, the material is carbon structural steel, the sliding surface is sintered bronze composite material; the inner ring is hardened bearing steel, and the sliding surface is hard chrome plated. Can withstand radial loads in the same direction.
(6) SAB…C type Rod end with external thread, material is carbon structural steel, sliding surface is sintered bronze composite material; inner ring is hardened bearing steel, sliding surface is hard chrome plated. Can withstand radial loads in the same direction.
(7) SIB…F type rod end with internal thread, the material is carbon structural 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 chrome . Can withstand radial loads in the same direction.
(8) SAB…F type Rod end with external thread, material is carbon structural steel, sliding surface is glass fiber reinforced plastic with polytetrafluoroethylene as additive; inner ring is hardened bearing steel sliding surface is plated with hard chrome. Can withstand radial loads in the same direction.
(9) SQ…L type Made of special self-lubricating alloy material, it can bear radial load and small axial load in any direction.
What are the characteristics of spherical plain bearings and their applications?
The spherical plain bearing is mainly a sliding bearing with a special structure of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. The following article will explain to you the characteristics of spherical plain bearings and what are their applications? Interested friends can follow this editor to see it together!
Features
Spherical bearings can withstand large loads. According to its different types and structures, it can bear radial load, axial load or combined radial and axial load at the same time. Since the outer spherical surface of the inner ring is inlaid with composite materials, the bearing can produce self-lubrication during operation. It is generally used for low-speed swing motion and low-speed rotation. It can also be used for tilting motion within a certain angle range. When the misalignment between the support shaft and the shaft housing hole is large, it can still work normally. Self-lubricating spherical plain bearings are used in water conservancy, professional machinery and other industries.
application
Plain bearings are widely used in engineering hydraulic cylinders, forging machine tools, construction machinery, automation equipment, automotive shock absorbers, water conservancy machinery and other industries. Brief introduction and classification of spherical plain bearings of the inner and outer rings. Depending on its structure and type, it can bear radial load, axial load, or combined radial and axial loads at the same time.
Because the spherical sliding contact area of the spherical plain bearing is large, the inclination angle is large, and because most of the spherical plain bearings adopt special processing methods, such as surface phosphating, galvanizing, chrome plating or outer sliding surface lining, padding, spraying, etc.
Therefore, it has a large load capacity and impact resistance, and has the characteristics of corrosion resistance, wear resistance, self-alignment, good lubrication or self-lubricating without lubrication and dirt pollution, and can work normally even if the installation is misplaced. Therefore, spherical plain bearings are widely used for low-speed oscillating motion, tilting motion and rotational motion.
composition
The spherical plain bearing is mainly composed of an outer ring and an inner ring. The inner spherical surface of the outer ring and the outer spherical surface of the inner ring form a sliding friction pair.
