high speed bearing Operating Temperature

Joint bearing allowable operating temperature is mainly determined by the pairing of the sliding surface between the bearing material, especially plastic material self-lubricating sliding surfaces high speed bearing‍ joints, its carrying capacity at high temperatures have Excavator Slewing Bearing‍ decreased. When the sliding surface materials such as lubricating plain bearings pairing of steel / steel, the allowable operating temperature depends on the allowable operating temperature lubricant. But for all lubricated and self-lubricating bearing joints is concerned, may, within -30 ℃ ~ + 80 ℃ temperature range of use, and maintain the correct affordability.

Dip

Rolling bearing joints is much greater than the general inclination is adjustable heart, it is suitable for use in less demanding concentricity supporting parts, plain bearings form bearing structure with the inclination of the size, type, seal and bearing varies, self aligning ball bearing‍ generally Spherical plain bearings tilt range is 3 ° ~ 15 °, inclination range of angular contact bearings are 2 ° ~ 3 °, inclination range of thrust bearings are 6 ° ~ 9 °.

Coordinate

In any case, bearing joints shall be chosen with the occurrence of uneven deformation of the ferrule, with the nature and level of their choice must be determined according to the bearing type, size and other support in the form of working conditions and loads.

Handling

Plain Bearings

Joint bearing handling should follow the principle that the force exerted by the assembly and disassembly can not directly pass through the spherical sliding Taper roller bearings‍ surface. Further, the auxiliary working tools should be used, such as a sleeve, disassembly, etc., the loading force is applied directly to the outside, and uniformly applied to the mating ferrule, auxiliary heating or no-load handling methods.

miniature ball bearings Installation

When assembling the joint bearing series, it is necessary to pay special attention to the location of the outer surface of the split. Consistent with a direct role in order to avoid the cut surfaces, the need to maintain the dividing surface at right angles to the direction of thin wall bearings‍ compliance.

Lubricating

When the applied load and the speed of the swing movement generated by the very hour, to the oil-type spherical plain miniature ball bearings can operate without lubrication conditions. Nevertheless, under normal circumstances have to be jacked up to add grease. Operation during the initial installation, it is recommended lubrication intervals should be moderately reduced.

Circumstances non-oil type joints lubricated bearings can no longer use the following. However, if before the operation adding lithium soap grease, use the Needle Roller Bearing‍ term joint bearing stresses may be more prolonged. If injected into the space around the bearing grease, bearing joints will be more effective protective dust and foreign matter intrusion.                                                                                                                                                        

flanged ball bearing Spherical Plain Bearings

Plain Bearings Classification and Features

(1) GE ... E Type: Single every outer ring, no oil tank. Can withstand the radial load and smaller axial load in either direction.

(2) GE ... ES type: single slit outer ring, with oil tank. Can withstand the radial load and smaller axial load in either direction.

(3) GE ... ES-2RS type, GEEW ... ES-2RS type: single Thrust Ball Bearings‍ slit outer ring, with oil tank, sides with a ring. Can withstand the radial load and smaller axial load in either direction.

(4) GE ... ESN type: single slit outer ring, GE ... XSN type: double-slit outer ring (split outer ring), with oil tank, with snap groove on the outer ring. Can withstand the radial load and smaller axial load in either direction. But by the snap ring axial load to bear, its ability to withstand axial load is reduced.

(5) GE ... HS type: inner ring with oil tank, double half of the outer ring, the wear and tear clearance can be adjusted. Can withstand the radial load and smaller axial load in either direction.

(6) GE ... DE1 type: truck mounted crane bearing‍ inner ring of flanged ball bearing steel, the outer ring of the bearing steel. When the inner assembly extrusion, with oil tank and oil hole. Inside diameter of less than 15mm bearings, no lubrication groove and hole. Can withstand the radial load and smaller axial load in either direction.

(7) GE ... DEM1 type: inner ring of hardened bearing steel, the outer ring of the bearing steel. When assembling extruded inner bearing into the bearing housing, the pressure on the outer ring of the bearing axial end ditch fixed. Can withstand the radial load and smaller axial load in either direction.

(8) GE ... DS type: outer ring fitting groove and lubrication ship loader bearing‍ groove. Limited to large-sized bearing. Can withstand the radial load and any direction of smaller axial load (fitting groove side can not bear axial load).                                                                                                                                                                     

high speed bearing Angular contact bearings

GAC ... S-type inner and outer rings are hardened bearing steel outer ring grooves and hole. Can withstand the radial load and an axial direction (joint) load.

Thrust bearings

GX ... S-type shaft ring and Thin section bearings‍ seat are hardened bearing steel; seat has grooves and hole. Can withstand axial load in one direction or the combined load (radial load value at this time is not greater than 0.5 times the value of the axial load).

Rod ends

(1) SI ... E-type is GE ... E-type high speed bearing‍ and rod end assembly. Rod ends with female thread, material is carbon steel, no oil tank. Able to support radial load and axial load in any one direction is less than or equal to 0.2 times the radial load.

(2) SA ... E-type is GE ... E-type bearings and rod end assembly. Rod ends with male thread, material is carbon steel; no oil tank, can withstand radial load and any direction is less than or equal to 0.2 times the radial load axial load.

(3) SI ... ES type is GE ...  slewing rings ‍ ES type bearings and rod end assembly. Rod ends with female thread, material is carbon steel; slot. Able to support radial load and axial load in any one direction is less than or equal to 0.2 times the radial load.

(4) SA ... ES type is GE ... ES type bearings and rod end assembly. Rod ends with male thread, material is carbon steel; slot. Able to support radial load and axial load in any one direction is less than or equal to 0.2 times the radial load.

(5) SIB ... S-type rod ends with female thread, material is carbon steel; inner ring of hardened bearing steel; slot. Able to support radial load and axial load in any one direction is less than or equal to 0.2 times the radial load.

(6) SAB ... S-type rod ends with male thread, Double Row Ball Slewing Bearing‍ material is carbon steel; inner ring of hardened bearing steel; slot. Able to support radial load and axial load in any one direction is less than or equal to 0.2 times the radial load.

(7) SQ ... type of ball joint rod end bearings, rod ends for carbon steel; ball head for carburizing steel. Can withstand the radial load and smaller axial load in either direction.‍

miniature ball bearings Self-lubricating spherical plain bearings

(2) GE ... CS-2Z type: outer ring of the bearing steel, sintered bronze sliding surface for composite materials; inner ring of hardened bearing steel, hard chrome plated slide; both sides with a dust cover. Able to withstand the same load direction, the radial load at the same time able to withstand the smaller axial load in either direction.

(3) GEEW ... T-type: the Flange Slewing Bearing‍ outer ring of the bearing steel, the sliding surface is a layer of Teflon fabric; inner ring of hardened bearing steel, hard chrome plated slide. Able to withstand the same load direction, the radial load, and can withstand the smaller axial load in either direction.

(4) GE ... F type: outer ring of hardened bearing steel, PTFE sliding surface for glass fiber reinforced plastics additives, inner ring of hardened bearing steel, hard chrome plated slide. Can withstand the constant moderate radial loads.

(5) GE ... F2 type: glass fiber reinforced plastic outer sliding surface of PTFE as additives in glass fiber reinforced plastics; inner ring of Slewing drives‍ miniature ball bearings steel, hard chrome plated slide. Can withstand the constant moderate radial loads.

(6) GE ... FSA-type outer ring of carbon steel, sliding surface as additives by PTFE glass fiber reinforced plastic wafer composed of fixed and fixed to the outer ring; inner ring of hardened bearing steel. For large and extra large bearings. Can withstand large radial loads.

(7) GE ... FIH outer ring of hardened bearing steel; inner ring of steel, sliding surface as additives by PTFE glass fiber reinforced plastic wafer composed of fixed and fixed to the inner ring; double half the outer ring. For large and extra large bearings. Can withstand large radial loads.                                                                                                  Self-lubricating angular bearing‍ contact bearings

GAC ... F-type outer ring of hardened bearing steel; sliding surfaces with Teflon additive for glass fiber reinforced plastics; inner ring of hardened bearing steel, hard chrome plated slide. Can withstand the radial load and an axial direction (joint) load.

Self-lubricating thrust bearings

GX ... F-type seat for hardened bearing steel, PTFE sliding surface as an additive for glass fiber reinforced plastic, shaft ring of hardened bearing steel, hard worm gear speed reducer‍ chrome plated slide. Can withstand axial load in one direction or the combined load (this time from the radial load value not greater than 0.5 times the axial load value).                                                     

flanged ball bearing Self-lubricating rod ends

(1) SI ... C type is CE ... C-type bearings and rod end assembly. Rod ends with female thread, material is carbon steel. Able to withstand the same load direction. In the radial load at the same time able to withstand either direction is less than or equal to 0.2 times the axial load radial loads.

(2) SA ... C type is CE ... C-type Single Row Ball Slewing Bearing‍ bearings and rod end assembly. Rod ends with male thread, material is carbon steel. Able to withstand the same load direction. In the radial load at the same time able to withstand either direction is less than or equal to 0.2 times the axial load radial loads.

(3) SI ... CS-2Z type is GE ... assembly CS-2Z bearing and rod ends. Rod ends with female thread, material is carbon steel. In the radial load at the same time able to withstand either direction is less than or equal to 0.2 times the axial load radial loads.

(4) SA ... CS-2Z type is GE ... slewing bearing‍ assembly CS-2Z flanged ball bearing  and rod ends. Rod ends with male thread, material is carbon steel. Able to withstand the same load direction. In the radial load at the same time able to withstand either direction is less than or equal to 0.2 times the axial load radial loads.

(5) SIB ... C-type rod ends with female thread, material is carbon steel, sintered bronze sliding surface for composite materials; inner ring of hardened bearing steel, hard chrome plated slide. Can withstand the constant radial load.

(6) SAB ... C-type rod ends with male thread, material is carbon steel, sintered bronze sliding surface for composite materials; inner ring of hardened bearing steel, hard chrome plated slide. Can withstand the constant radial load.

(7) SIB ... F-type rod ends with female thread, material is carbon steel, the sliding surface of PTFE as additives in glass fiber reinforced plastics; inner ring of hardened bearing steel, hard chrome plated slide . Can withstand the constant radial load.

(8) SAB ... F-type rod ends with male thread, thin wall bearings‍ material is carbon steel, PTFE sliding surface with glass fiber reinforced plastic additives; inner ring of hardened bearing steel, hard chrome plated sliding surface. Can withstand the constant radial load.

(9) SQ ... L-type made ​​of special alloy self-lubricating materials, can withstand any smaller radial load and axial load in one direction.‍

high speed bearing Bearing ferrule to production?

1, forging: forging process if the overburnt, overheating, split carbide network will reduce the toughness and strength of ring. So we must strictly control the processing temperature, cyclic heating and cooling after forging conditions (such as spray cooling), especially the larger varieties of high speed bearing‍ ring forging, the temperature over 700 ℃, shall not be piled up display.

2, the heat treatment of heat treatment equipment: close monitoring is an important work in the workshop.

The reliability of monitoring equipment. Must close monitoring of the instrument, thermocouple, temperature control equipment to ensure that important, accurate and reliable measurement data error; to exceed the standard must be promptly replaced, is strictly prohibited to stop the Slewing drives‍ operation.

3, monitoring of grinding process. The finished SUNTHAI bearing ring does not allow to have the existence of grinding burn and grinding cracks, especially with the surface modification of the inner taper no burns. The ferrule if pickling full inspection should be carried out after burn, out products, severe burns can not repair or rework unqualified should be scrapped, does not allow the grinding burn the ferrule into the assembly process.

4, identity management, to the ferrule grinding steel Deep groove ball bearing‍ warehousing, the process must be in strict management, strict distinction between GCR15 and GCR15SIMN two different materials and products.