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Joint bearing
Product Name: Joint bearing
Product ID: 008
product description:
Detailed information:Edit this section of joint bearing joint bearing introduction
The joint bearing is mainly composed of an inner ring having an outer spherical surface and a sliding bearing having a special structure of an outer ring having an inner spherical surface.
[1] can withstand large loads. The structure of the joint bearing is simpler than that of the rolling bearing, and it mainly consists of an inner ring having an outer spherical surface and an outer ring having an inner spherical surface.
Joint bearings are generally used for low-speed oscillating motion (ie angular motion). Since the sliding surface is spherical, it can also be tilted in a certain range of angles (ie, aligning motion), and the support shaft is not concentric with the shaft hole. When the degree is large, it still works normally.
Joint bearing features Joint bearings can withstand large loads. Depending on their type and construction, it is possible to withstand radial loads, axial loads or combined loads of radial and axial forces. Since the outer surface of the inner ring is provided with a composite material, the bearing can be self-lubricated during operation. Generally used for low-speed oscillating motion, and low-speed rotation, it can also be tilted within a certain angle range. When the support shaft and the shaft housing hole are different, the normal operation can still be performed. Self-lubricating joint bearings are used in water conservancy and professional machinery industries.
Joint bearing self-lubricating joint bearing joint bearing is widely used in engineering hydraulic cylinders, forging machine tools, engineering machinery, automation equipment, automobile shock absorbers, water conservancy machinery and other industries. Joint bearing introduction and classification of spherical plain bearings is a spherical plain bearing, the basic type is It consists of inner and outer rings with spherical sliding spherical contact surfaces. Depending on its structure and type, it can withstand radial loads, axial loads, or combined loads acting in both radial and axial directions. Because the spherical sliding contact area of the joint bearing is large, the inclination angle is large, and because most of the joint bearings adopt special processing methods, such as surface phosphating, galvanizing, chrome plating or outer sliding surface lining, inserting, spraying and the like. Therefore, it has large load capacity and impact resistance, and has the characteristics of corrosion resistance, wear resistance, self-aligning, good lubrication or self-lubricating and non-lubricating dirt pollution, even if the installation is misplaced, it can work normally. Therefore, joint bearings are widely used for low-speed oscillating motions, tilting motions, and rotational motions.
Joint bearing composition The joint 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 constitute a sliding friction pair. Edit this paragraph joint bearing performance Joint bearing Because the structural form and working mechanism of the joint bearing is completely different from the rolling bearing, the joint bearing has its own technical characteristics and maintenance requirements.
(1) Working temperature The allowable working temperature of the joint bearing is mainly determined by the mating material between the sliding surfaces of the bearing, especially the sliding surface of the plastic material of the self-lubricating joint bearing, and its bearing capacity will decrease at high temperatures. For example, when the sliding surface material of a lubricated joint bearing is paired with steel/steel, the allowable operating temperature depends on the allowable operating temperature of the lubricant. However, for all lubricated and self-lubricating joint bearings, they can be used in the temperature range of -30 ° C ~ +80 ° C, and maintain the correct bearing capacity.
(2) The inclination of the inclined joint bearing is much larger than that of the generally adjustable rolling bearing. It is suitable for use in the support part where the concentricity is not high. The inclination of the joint bearing depends on the size, type, sealing device and support form of the bearing. Differently, the general radial bearing has an inclination angle of 3° to 15°, the angular contact joint bearing has an inclination angle of 2° to 3°, and the thrust joint bearing has an inclination angle of 6° to 9°.
(3) Coordination In any case, the matching of the joint bearing shall not cause uneven deformation of the ferrule. The selection of the matching property and grade shall be determined according to the working conditions such as bearing type, support form and load size.
(4) Loading and unloading Joint bearing The bearing of the joint bearing should follow the principle that the force applied by assembly and disassembly cannot be transmitted directly through the spherical sliding surface. In addition, auxiliary loading and unloading tools, such as sleeves, detachers, etc., should be used to directly and uniformly apply the loading and unloading force applied by the outside to the ferrule to be fitted, or to perform load-free loading and unloading by an auxiliary method such as heating.
(5) Installation When assembling the joint bearing series [2], it is necessary to leave the position of the split surface of the accident circle. In order to avoid direct interaction on the segmentation surface, the segmentation surface should be maintained at a right angle to the direction.
(6) Lubrication When the speed generated by the application of the load and the oscillating motion is small, the oil-filled joint bearing can be operated without lubrication. However, in general, it is necessary to put up the supplemental grease. It is recommended that the lubrication cycle be appropriately shortened during initial installation and operation. Non-oiled joint bearings can be used without lubrication. However, if lithium soap-based grease is added before the operation, the life of the joint bearing can be extended. If the grease is injected into the space around the bearing, the joint bearing will be more effective in protecting against the invasion of dust and foreign matter. Edit this paragraph joint bearing classification and characteristics radial joint bearing radial joint 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 ring 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 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 received by the retaining ring, its ability to withstand axial loads is reduced.
(5) GE...HS type: There are lubricating oil grooves in the inner ring and double outer rings. 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. Extrusion during assembly of the inner ring, with lubrication grooves and oil holes. Bearings with an inner diameter of less than 15 mm, no lubrication 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. After the bearing is installed in the bearing housing, 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 a mounting groove and a lubrication groove. Limited to large size bearings. Can withstand radial loads and small axial loads in either direction (the side of the mounting groove cannot withstand axial loads).
Angular contact spherical plain bearings GAC...S type The inner and outer rings are hardened bearing steel with oil grooves and oil holes in the outer ring. Can withstand radial loads and axial directional (combined) loads.
Thrust joint bearings GX...S type Shaft rings and races are hardened bearing steel; the seat has oil grooves and oil holes. It can withstand axial loads or combined loads in one direction (in this case, the radial load value must not be greater than 0.5 times the axial load value).
Rod end joint bearing rod end joint bearing
(1) SI...E type is an assembly of GE...E type bearings and rod ends. The rod ends are internally threaded and the material is carbon structural steel with no lubrication grooves. Can withstand radial loads and axial loads in either direction less than or equal to 0.2 times the radial load.
(2) SA...E type is an assembly of GE...E type bearings and rod ends. The rod end is externally threaded and made of carbon structural steel; the oil-free groove is capable of withstanding radial loads and axial loads less than or equal to 0.2 times the radial load in either direction.
(3) SI...ES type is an assembly of GE...ES type bearings and rod ends. The rod end is internally threaded and the material is carbon structural steel; there is a lubricating oil groove. Can withstand radial loads and axial loads in either direction less than or equal to 0.2 times the radial load.
(4) SA...ES type is an assembly of GE...ES type bearings and rod ends. The rod end is externally threaded and the material is carbon structural steel; there is a lubricating oil groove. Can withstand radial loads and axial loads in either direction less than or equal to 0.2 times the radial load.
(5) SIB...S type Rod end with internal thread, the material is carbon structural steel; the inner ring is hardened bearing steel; there is lubricating oil groove. Can withstand radial loads and axial loads in either direction less than or equal to 0.2 times the radial load.
(6) SAB...S type The rod end is externally threaded and the material is carbon structural steel; the inner ring is hardened bearing steel; there is a lubricating oil groove. Can withstand radial loads and axial loads in either direction less than or equal to 0.2 times the radial load.
(7) SQ... is a ball end rod end joint 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 joint bearing self-lubricating radial joint bearing
(1) GE...C type and GE...T type: extruded outer ring, the sliding surface of the outer ring is sintered bronze composite material; the inner ring is hardened bearing steel, and the sliding surface is plated with hard chrome. 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 hard chrome plated. A load that can withstand constant direction can withstand radial loads in one direction while being able to withstand axial loads in either direction.
(2) GE...CS-2Z type: the outer ring is bearing steel, the sliding surface is sintered bronze composite material; the inner ring is hardened bearing steel, the sliding surface is hard chrome plated; the two sides are provided with dustproof cover. A load that can withstand the same direction, can withstand radial loads and can withstand small axial loads in either direction.
(3) GEEW...T type: the outer ring is bearing steel, 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. A load that can withstand the same direction, can withstand radial loads, and can withstand small axial loads in either 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 chrome. A medium radial load that can withstand 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. A medium radial load that can withstand the same direction.
(6) GE...FSA type The outer ring is medium carbon steel, the sliding surface is composed of glass fiber reinforced plastic disc with PTFE as additive, and fixed on the outer ring with a fixture; the inner ring is hardened bearing steel. For large and extra large bearings. Can withstand large radial loads.
(7) GE...FIH type outer ring is hardened bearing steel; inner ring is medium carbon steel, sliding surface is composed of glass fiber reinforced plastic disc with polytetrafluoroethylene as additive, and fixed on inner ring with fixing device; Double half outer ring. For large and extra large bearings. Can withstand large radial loads. Self-lubricating angular contact joint 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 hard chrome plated. Can withstand radial loads and axial (combined) loads in one direction.
Self-lubricating thrust joint bearing GX...F type The seat ring is hardened bearing steel, the sliding surface is glass fiber reinforced plastic with Teflon as additive, the shaft ring is hardened bearing steel, and the sliding surface is plated with hard chrome. Can withstand axial load or combined load in one direction (the radial load value should not be greater than 0.5 times the axial load value).
Self-lubricating rod end joint bearing self-lubricating rod end joint bearing
(1) SI...C type is an assembly of CE...C type bearings and rod ends. The rod ends are internally threaded and the material is carbon structural steel. Can withstand loads of constant direction. It can withstand radial loads and can withstand axial loads less than or equal to 0.2 times the radial load in either direction.
(2) SA...C type is the assembly of the CE...C type bearing and the rod end. The rod ends are externally threaded and the material is carbon structural steel. Can withstand loads of constant direction. It can withstand radial loads and can withstand axial loads less than or equal to 0.2 times the radial load in either direction.
(3) SI...CS-2Z type is an assembly of GE...CS-2Z type bearings and rod ends. The rod ends are internally threaded and the material is carbon structural steel. It can withstand radial loads and can withstand axial loads less than or equal to 0.2 times the radial load in either direction.
(4) SA...CS-2Z type is an assembly of GE...CS-2Z type bearing and rod end. The rod ends are externally threaded and the material is carbon structural steel. Can withstand loads of constant direction. It can withstand radial loads and can withstand axial loads less than or equal to 0.2 times the radial load in either direction.
(5) SIB...C type The rod end has 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 plated with hard chrome. Can withstand radial loads in the same direction.
(6) SAB...C type The rod end is externally threaded, 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 plated with hard chrome. Can withstand radial loads in the same direction.
(7) SIB...F rod end with internal thread, carbon structural steel, sliding surface is made of glass fiber reinforced plastic with PTFE as additive; inner ring is hardened bearing steel, sliding surface is hard chrome plated . Can withstand radial loads in the same direction.
(8) SAB...F type The rod end is externally threaded, the material is carbon structural steel, the sliding surface is made of glass fiber reinforced plastic with Teflon as additive; the inner ring is hardened bearing steel with sliding surface. Can withstand radial loads in the same direction.
(9) SQ...L type Made of special self-lubricating alloy material, it can withstand radial load and small axial load in either direction.