Joint bearing is a kind of spherical sliding bearing, whose sliding contact surface is an inner sphere and an outer sphere, which can rotate and swing at any Angle when moving. It is made of surface phosphating, blasting, padding, spraying and other special processing methods. Joint bearing has the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, only aligning, good lubrication and so on.
Specification
Characteristics
Application
The knuckle bearing is a spherical sliding bearing. The basic type is composed of an inner ring and an outer ring with a spherical sliding spherical contact surface. Depending on its structure and type, it can bear radial load, axial load, or the combined load of radial and axial action at the same time.
Joint bearings are widely used in engineering hydraulic cylinders, forging machine tools, construction machinery, automation equipment, automotive shock absorbers, hydraulic machinery and other industries.
Classification
(1) GE... E type single seam outer ring, no lubrication groove. It can bear radial load and small axial load in any direction.
(2) GE... ES type single seam outer ring with lubricating oil groove. Variable speed bearings can bear radial loads and small axial loads in any direction.
(3) GE... ES-2RS single seam outer ring, lubricated oil groove, sealing ring on both sides. It can bear radial load and small axial load in any direction.
(4) GEEW... ES-2RS single seam outer ring, lubricated oil groove, sealing ring on both sides. It can bear radial load and small axial load in any direction.
(5) GE... ESN type single seam outer ring, lubricating oil groove, outer ring with a stop groove. Error 5 on quality judgment of TIMKEN bearing can withstand radial load and small axial load in any direction. However, when axial load is borne by the stop ring, its ability to bear axial load decreases.
(6) GE... XSN type double seam outer ring (split outer ring), with lubricating oil groove, the outer ring has a stop groove. It can bear radial load and small axial load in any direction. However, when axial load is borne by the stop ring, its ability to bear axial load decreases.
(7) GE... HS inner ring has lubricating oil groove, double and half outer ring, the clearance can be adjusted after wear. It can bear radial load and small axial load in any direction.
(8) GE... The inner ring of DE1 is hardened bearing steel and the outer ring is bearing steel. The inner ring assembly extrusion molding, lubricating oil groove and oil hole. Bearing with inner diameter less than 15mm, without lubricating oil groove and oil hole. It can bear radial load and small axial load in any direction.
(9) GE... The inner ring of DEM1 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 loaded into the bearing seat, the TIMKEN bearing ring is superfine lapped to press out the end groove on the outer ring to make the bearing axially fixed. It can bear radial load and small axial load in any direction.
(10) GE... DS type outer ring has assembly groove and lubrication groove. Only for large size bearings. It can bear radial load and small axial load in any direction (one side of the assembly groove cannot bear axial load).
Type code for joint bearings
| Shaft bearing type | Type code |
| Centripetal joint bearing | GE |
| Angular contact joint bearing | GAC |
| Thrust joint bearing | GX |
| Rod end joint bearing with internal thread | SI |
| Rod end joint bearing with external thread | SA |
| Integral rod end joint bearing with internal thread | SIB |
| Integral rod end joint bearing with external thread | SAB |
| Ball head rod end joint bearing | SQ |
| Rod end joint bearing with left internal thread | SIL |
| Rod end joint bearing with left external thread | SAL |
| Integral rod end joint bearing with left internal thread | SILB |
| Integral rod end joint bearing with left external thread | SALB |
News
FAQ
1 What are the specific causes of joint bearing damage?
1.peeling load is too large: check the size of the load. Correct load conditions.
2.torque load foreign body intrusion, water intake: improve the sealing device, stop rust. Improve the surface finish of paired rolling parts.
3. poor lubrication, lubricant is not suitable: the use of appropriate viscosity lubricant, improve the lubrication method.
4. Bearing clearance is inappropriate. Bearing box accuracy is not good, bearing box rigidity is not uniform: check the accuracy of shaft and bearing box. Check the clearance.
5. The shaft deflection is large, such as rust, erosion, abrasion and indentation. Check the accuracy of the shaft and bearing box.
2What should we pay attention to when the joint bearing device?
1. Selection and control of tolerance of shaft and bearing room: After TIMKEN bearing is pressed into the bearing room, there is obvious "rustling" feeling by hand rotation, which may be caused by too large tolerance of shaft or poor roundness of shaft.
2. Prevent the assembly of foreign bodies: when the joint bearing is installed on the rotor to do dynamic balance, it is easy to enter the iron filings generated by dynamic balance into the bearing, so it is best to do dynamic balance before loading the bearing.
3. Bearing assembly mode: Because bearings are high-precision products, improper assembly is easy to cause damage to joint bearing channels, resulting in bearing damage.
4. Prevention of paint rust: The characteristics of paint rust are mostly in the sealed motor. The sound of the motor is very good during assembly, but after being put in the warehouse for some time, the abnormal sound of the motor changes greatly, and there is serious rust phenomenon when the bearing is removed.
3What problems should we pay attention to to prevent IKO joint bearing failure?
1. Prevention of paint rust
The characteristic of paint rust is mostly in the sealed motor. The sound of the motor is very good during assembly, but after some time in the warehouse, the abnormal noise of the motor changes greatly, and the bearing is seriously rusted when it is removed
2. Selection and control of shaft and bearing tolerance
Bearing pressed into IKO bearing should be flexible rotation without block feeling. If there is obvious rotation is not flexible, it indicates that the size of the shaft is too large, and the tolerance should be reduced.
3. Prevent the assembly of foreign bodies
When the bearing is installed on the rotor to do dynamic balance, it is easy to enter the iron filings generated by dynamic balance into the joint bearing, so it is best to do dynamic balance before loading the bearing.
