PRODUCT
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Deep Groove Ball Bearing
- Deep Groove Ball Bearing 6000 Series
- Full Complement Deep Groove Ball Bearing 6000-V Series
- Flanged Deep Groove Ball Bearing F6000 Series
- Deep Groove Ball Bearing 6200 Series
- Deep Groove Ball Bearing 6200NR Series
- Deep Groove Ball Bearing 6300 Series
- Deep Groove Ball Bearing 6300NR Series
- Deep Groove Ball Bearing 6400 Series
- Deep Groove Ball Bearing 6000NR Series
- Deep Groove Ball Bearing 6700 Series
- Flanged Deep Groove Ball Bearing F6700 Series
- Deep Groove Ball Bearing 6800 Series
- Full Complement Deep Groove Ball Bearing 6800-V Series
- Flanged Deep Groove Ball Bearing F6800 Series
- Deep Groove Ball Bearing 6900 Series
- Full Complement Deep Groove Ball Bearing 6900-V Series
- Flanged Deep Groove Ball Bearing F6900 Series
- Deep Groove Ball Bearing 62200 Series
- Deep Groove Ball Bearing 62300 Series
- Deep Groove Ball Bearing 63000 Series
- Deep Groove Ball Bearing 63800 Series
- Full Complement Deep Groove Ball Bearing 63800-V Series
- Deep Groove Ball Bearing 16000 Series
- Double Row Deep Groove Ball Bearing 4200 Series
- Double Row Deep Groove Ball Bearing 4300 Series
- Deep Groove Ball Bearing Inch R Series
- Deep Groove Ball Bearing Inch RMS Series
- Miniature Deep Groove Ball Bearing
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Spherical Roller Bearings
- Spherical Roller Bearing 21300 Series
- Spherical Roller Bearing 22200 Series
- Spherical Roller Bearing 22300 Series
- Spherical Roller Bearing 23000 Series
- Spherical Roller Bearing 23100 Series
- Spherical Roller Bearing 23200 Series
- Spherical Roller Bearing 23900 Series
- Spherical Roller Bearing 24000 Serie
- Spherical Roller Bearing 24100 Series
- Split Style Spherical Roller Bearing
- Thrust Roller Bearing
-
Joint Bearing
- Radial Spherical Joint Plain Bearing GE...E
- Radial Spherical Joint Plain Bearing GE...ES
- Radial Spherical Joint Plain Bearing GE...ES-2RS
- Rod End Joint Bearing PHS/PHSB
- Rod End Joint Bearing GE...C
- Rod End Joint Bearing SI...TK
- Rod End Joint Bearing NHS
- Rod End Joint Bearing GIR...DO
- Rod End Joint Bearing GIR...C
- Rod End Joint Bearing GIR...UK
- Rod End Joint Bearing SQZ...RS
- Rod End Joint Bearing SA...T/K
- Rod End Joint Bearing POS/POSB
- Rod End Joint Bearing NOS
- Rod End Joint Bearing GAR...DO
- Rod End Joint Bearing GAR...C
- Rod End Joint Bearing GAR...UK
- Rod End Joint Bearing SQ...RS
- Rod End Joint Bearing SA...E
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Angular Contact Ball Bearings
- Single Row Angular Contact Ball Bearing 7000 series
- Single Row Angular Contact Ball Bearing 7200 series
- Single Row Angular Contact Ball Bearing 7300 series
- Single Row Angular Contact Ball Bearing 7900 series
- Double Row Angular Contact Ball Bearing 3200 Series
- Double Row Angular Contact Ball Bearing 3300 Series
- Qj2 Series Four Point Angular Contact Ball Bearing
- Qj3 Series Four Point Angular Contact Ball Bearing
-
Tapered Roller Bearings
- Single Row Tapered Roller Bearing 30200 Series
- Single Row Tapered Roller Bearing 30300 Series
- Single Row Tapered Roller Bearing 31300 Series
- Single Row Tapered Roller Bearing 32000 Series
- Single Row Tapered Roller Bearing 32200 Series
- Single Row Tapered Roller Bearing 32300 Series
- Single Row Tapered Roller Bearing 33000 Series
- Single Row Tapered Roller Bearing 33100 Series
- Single Row Tapered Roller Bearing 33200 Series
- Single Row Tapered Roller Bearing Inch Series
- Double Row Tapered Roller Bearing 350000 Series
- Double Row Tapered Roller Bearing Inch Series
- Four-row Tapered Roller Bearing 380000 Series
- Four-row Tapered Roller Bearing Inch Series
-
Needle Roller Bearing
- HK Style Standard Needle Roller Bearing
- HF Style Standard Needle Roller Bearing
- F Style Standard Needle Roller Bearing
- K Style Standard Needle Roller Bearing
- SCE Style Standard Needle Roller Bearing
- CF Style Standard Needle Roller Bearing
- HFL Style Standard Needle Roller Bearing
- TA Style Standard Needle Roller Bearing
- NATR Style Standard Needle Roller Bearing
- BK Style Standard Needle Roller Bearing
- NA Style Standard Needle Roller Bearing
- NK Style Standard Needle Roller Bearing without Inner Ring
- NKI Style Standard Needle Roller Bearing with Inner Ring
- NKIS Style Standard Needle Roller Bearing with Inner Ring
- NKS Style Standard Needle Roller Bearing without Inner Ring
- RNA Standard Needle Roller Bearing without Inner Ring
- Inch-Style Needle Roller Bearing
- MR Series Heavy Duty Needle Roller Bearing
- Self-Aligning Ball Bearings
-
Cylindrical Roller Bearings
- Cylindrical Roller Bearing N Series
- Cylindrical Roller Bearing NU Series
- Cylindrical Roller Bearing NJ Series
- Cylindrical Roller Bearing NF Series
- Cylindrical Roller Bearing NUP Series
- Cylindrical Roller Bearing NFP Series
- Cylindrical Roller Bearing NH(NJ+HJ) Series
- Cylindrical Roller Bearing NN Series
- Cylindrical Roller Bearing NNU Series
- Cylindrical Roller Bearing NNF Series
- Cylindrical Roller Bearing FC Series
- Cylindrical Roller Bearing FCD Series
- SL Sheave Wheel Series Cylindrical Roller Bearing
- Thrust Ball Bearing
-
Pillow Block Bearing
- Pillow Block Bearing UC Inserts
- Pillow Block Bearing UK Inserts
- Pillow Block Bearing SB Inserts
- Pillow Block Bearing SA Inserts
- Pillow Block Bearing CS Inserts
- Pillow Block Bearing UCP
- Pillow Block Bearing UKP
- Pillow Block Bearing SAP
- Pillow Block Bearing SBP
- Pillow Block Bearing UCPA
- Pillow Block Bearing UKPA
- Pillow Block Bearing UCPH
- Pillow Block Bearing UKPH
- Pillow Block Bearing UCF
- Pillow Block Bearing UKF
- Pillow Block Bearing UCFL
- Pillow Block Bearing UKFL
- Pillow Block Bearing UCFC
- Pillow Block Bearing UKFC
- Pillow Block Bearing UCFA
- Pillow Block Bearing UKFA
- Pillow Block Bearing UCFB
- Pillow Block Bearing UKFB
- Pillow Block Bearing UCT
- Pillow Block Bearing UKT
- Pillow Block Bearing UCC
- Pillow Block Bearing SBPP
- Pillow Block Bearing SAPP
-
Linear Bearing
- Standard Linear Bearing LM Series
- Adjustable Type Linear Bearing LM-AJ Series
- Open Type Linear Bearing LM--OP Series
- Lengthened Type Linear Bearing LM-L Series
- Standard Linear Bearing LME Series
- Adjustable Type Linear Bearing LME-AJ Series
- Open Type Linear Bearing LME-OP Series
- Lengthened Type Linear Bearing LME--L Series
- Standard Linear Bearing LMB Series
- Adjustable Type Linear Bearing LMB--AJ Series
- Open Type Linear Bearing LMB--OP Series
- Lengthened Type Linear Bearing LMB--L Series
- Round Flange Linear Bearing LMF Series
- Square Flange Type Linear Bearing LMK Series
- Oval Flange Linear Bearing LMH Series
- Round Flange Linear Bearing LMF--L Series
- Square Flange Type Linear Bearing LMK-L Series
- Oval Flange Linear Bearing LMH-L Series
- Pilot Flange Linear Bearing LMFP Series
- Pilot Flange Linear Bearing LMKP Series
- Pilot Flange Linear Bearing LMHP Series
- Pilot Flange Linear Bearing LMFP-L Series
- Pilot Flange Linear Bearing LMKP-L Series
- Pilot Flange Linear Bearing LMHP-L Series
- Middle Flanged Linear Bearing LMFC-L Series
- Middle Flanged Linear Bearing LMKC-L Series
- Middle Flanged Linear Bearing LMHC-L Series
- Round Flange Linear Bearing LMEF Series
- Square Flange Type Linear Bearing LMEK Series
- Round Flange Linear Bearing LMEF-L Series
- Square Flange Type Linear Bearing LMEK-L Series
- Middle Flanged Linear Bearing LMEKC-L Series
- Middle Flanged Linear Bearing LMEFC-L Series
- Round Flange Linear Bearing LMBF Series
- Square Flange Type Linear Bearing LMBK Series
- Round Flange Linear Bearing LMBF-L Series
- Compact Ball Bushing KH Series
- SC UU Slide Block Unit Series
- SC LUU Linear Case Unit Series
- SC VUU Linear Pillow Block Unit Series
- SBR UU Support Rail Unit Series
- SBR LUU Support Rail Unit Series
- TBR UU Support Rail Unit Series
- SCE UU Slide Block Unit Series
- SCE LUU Linear Case Unit Series
- SCE VUU Linear Pillow Block Unit Series
- Vertical Shaft Support SK Series
- Horizontal Shaft Support SHF Series
- Sleeve Bearing
- Other Bearings
Research on friction and wear properties of radial spherical plain bearings
by:JNSN
2022-03-15
First, cut the outer ring of the GEZ101ES radial spherical plain bearing sample before and after optimization into two pieces with a central angle of 170. The bearing shell is fixed on the shaft connected with the friction and wear testing machine. The friction and wear test was carried out using the bearing friction and wear testing machine developed by Nanjing University of Aeronautics and Astronautics (see Figure 3). First, the frequency is 0.12 Hz and the swing angle is 30. , MoS lithium grease lubrication, the friction coefficient was measured under different positive pressure conditions. First, the positive pressure was loaded to 150 kN, and the corresponding friction coefficient was measured. Then, the positive pressure was loaded at 250 kN, 357 kN, 500 kN, and 607 kN in turn, and the corresponding friction coefficient was measured. A total of 19 groups of friction coefficients under different positive pressure conditions were measured, and the average value of friction coefficients under different positive pressure conditions was taken as the basis for the design, calculation and use of spherical plain bearings. Since the frictional force in the swinging process of the friction and wear testing machine is related to the swinging angle, from the tribological point of view, as long as the swinging can pass through the position of the maximum frictional force, it must be able to pass through other positions. In view of this, we measure the maximum friction force and convert it into the friction coefficient, that is, the maximum friction coefficient is obtained. Secondly, we use the GEZ101ES spherical plain bearing specimens before and after optimization to conduct a wear comparison test. The test conditions are: positive pressure of 607 kN, swing frequency of 0.12 Hz, and swing angle of 30. , swing around the contact point of the inner and outer rings of the bearing. It is stipulated that one of three conditions, such as temperature rise ≥ 150 ℃, wear amount of inner ring or outer ring ≥ 150 m, or ferrule burn, shall be used as the basis for judging wear failure. No ferrule burn was found in the whole test process, and the temperature rise of the specimen did not exceed 40℃ after 12 hours of continuous wear test. Therefore, the wear amount of 150 m was used as the basis for judging the termination of the test. Use a digital thermometer to monitor the temperature of the bearing, and use a dial gauge to measure the thickness of the outer ring of the bearing every 4 to 6 hours during the wear test, and use a micrometer to measure the ball diameter of the inner ring of the bearing. The wear thickness is equal to the initial thickness minus the wear. Thickness measured after the test. Scanning electron microscope (SEM) was used to observe the wear surface morphology of the outer ring of GEZ101ES spherical plain bearing, and the results and analysis of Acta Tribology. It can be seen that the friction coefficient of GEZ101ES joint support before and after optimization does not change much. Under regular lubrication conditions, when the positive pressure is in the range of 150 to 607 kN. The corresponding friction coefficient is 0.089~0.067, and the friction coefficient decreases with the increase of positive pressure, which is in line with the normal law of friction and separation. Wear performance Figure 5 shows the wear of GEZ1 01ES spherical bearing before and after optimization. Figure 5 Wear depth of spherical bearing: s. The relationship curve of wear curve depth of sliding dista rwe ring 5 joint auxiliary bearing with the change of wear stroke. visible. When the bearing capacity is 607 kN and the wear amount of the outer ring is 150 m, the wear amount of the two outer rings of the bearing is similar. The wear stroke of the unoptimized spherical plain bearing is 1 3 847 1TI, while that of the optimized spherical plain bearing is 15 760 m. At the same time, under proper lubrication conditions, the temperature rise of the bearing does not change much during the continuous wear process. Generally, the temperature rise of the bearing is less than 30°C for 12 hours of continuous operation (room temperature is 5-1 ℃ in volume 24). The measured friction coefficient is about 0.070, indicating that the friction coefficient of the bearing is relatively stable. 2.3 Wear surface morphology Figure 6 shows the SEM photo of the bearing outer ring wear surface morphology. F 6 SEM images 0f wDrn su rface of GEZ101ES (500 ] Fig. 5 The worn surface morphology of GEZ101ES SEM film (500) shows that there are pitting pits on the surface. It can be speculated that under the swing bar, the main damage of the joint bearing is It is caused by surface fatigue and wear. Conclusion The maximum energy error of the corresponding finite element analysis is 7.5, indicating that the selected homogeneity accuracy meets the requirements. The result is reliable. b. The stress on the optimized spherical plain bearing is the same as before The friction coefficient of the joint sleeve before and after optimization has no significant change, but the wear life after optimization is significantly improved than that before optimization. The corresponding calculation and test results are consistent.
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