Classification of Rod End Joint Bearings

The rod-end joint bearing is a kind of joint bearing with rod end or mounted on rod end, which belongs to a class of joint bearings.

Type

Radial spherical sliding bearing to be maintained

Maintenance-free spherical sliding bearing

Angular contact spherical sliding bearing

Spherical sliding thrust bearing

Rod end joint bearing

To select a bearing type and determine the required bearing size, the main factors that must be considered are load, bearing capacity and expected service life. The same is true when choosing rod-end joint bearings.

According to GB/T9161 standard, the types can be divided into: elbow open-end rod joint bearing (type code: SQ); straight open-end rod joint bearing (type code: SQZ); single-end open-end rod joint bearing (type code: SQD); left internal thread assembly rod end joint bearing (type code: SLLB); left external thread assembly rod end joint bearing (type code: SQZ). No. SALB; left-handed curved rod end joint bearing (type code: SLLB); left-handed single-handed rod end joint bearing (type code: SQLD); cylindrical welded rod end joint bearing (type code: SK); flat base welded rod end joint bearing (square type) (type code: SF); locking rod end joint bearing (type code: SKD); The number is SLR.

Dimension series

EH series of rod-end joint bearing (reinforced type); EG series of rod-end joint bearing (reinforced type); normal series of British size rod-end joint bearing (size series code Z); JK series of rod-end joint bearing (size series code JK). The structural material code and clearance group code are similar to the joint bearing.

The rod-end joint bearing is mainly used as the supporting part with low requirement of concentricity, high working surface pressure and slow swing and rotary motion.

Detailed information of rod-end joint bearings should be consulted in GB/T304, 1-2002, GB/T304, 2-2002, GB/T304, 3-21102 and GB/12765-1991.

The rod end joint bearing belongs to sliding bearing. It has wear-resistant non-metallic material lubrication type and oil injection lubrication type.

Similar to GE20-ET, GE15-ET are all joint bearings, suffixes are specific types.

Joint bearings are divided into GE, GEC, GEG, GEEW, GEK, GEH and other types, with different sizes and lubrication methods, which can be found in the classification of sliding bearings in the mechanical design manual.

In the narrow sense, the rod-end joint bearing should refer to the common fisheye joint.

Fisheye joints are distinguished by internal and external threads according to connection mode: internal threads series SIG, external threads series SAG. The size of the inner and outer filaments is the same as the inner diameter of the fisheye, such as the fisheye joint M12, and the inner diameter of the bearing D12.

Joint bearing is widely used in engineering hydraulic cylinder, forging machine tool, engineering machinery, automation equipment, automobile shock absorber, hydraulic machinery and other industries.