Supplier Bearing TDO HM926747/10D/XA From Bearing Kingdom Group

 TDO HM926747/10D/XA 127.792×228.6×115.888 16.2KG

TDO 152,4 -99600/102CD/X7S 152.4*254*149.225 26.93KG

NU 2326 EMC3 130×280×93 28.5KG

NU 1060ECMA/C3 300×460×74 44.5KG

TDO HM 926747/10D/XA 127.792×228.6×115.888 16.200 

TDO 152,4 -99600/102CD/X7S 152.4*254*149.225 26.930 

NU 2326 EMC3 130×280×93 28.500 

NU 1060ECMA/C3 300×460×74 44.500 

7307A 35×80×21 0.47

7207C 35×72×17 0.3

22320CAME4 100×215×73 13.1

NU2224EM 120×215×58 9.5

HR130KBE2301+L 130*230*64 11.4

23024EAE4 120×150×46 4.2

23128CAME4 140×225×68 10.8

QJ308MA 40*90*23 0.78

C2238 190*340*92 34

33211/Q    55*120*45.5 2.3KG

UC205 25×52×34.1×17 0.21KG

P205 25×140×71×34.1 0.8KG

6312-2RS 60×130×31 1.700 

5313G 65×140×58.7 4.100 

318-SS

NU 319 95×200×45 6.740 

6208-2Z 40×80×18 0.420 

6004Z 20×42×12 0.070 

6201Z JAPAN JAPAN

6200Z 10×30×9 0.030 

6202-2Z 15×35×11 0.045 

6318 90×190×43 4.920 

3318 90*190*73 9.250 

N218E.M1 90*160*30 2.400 

34306 / 34500 77.788*121.442*24.608 0.910 

HM 813844 + HM 66.675*127*36.512 2.420 

40BNR10XTDBBCA20P4Y 40*68*36 0.480 

7010CE/HCP4AQBCA 50×80×16 0.260 

7009CE/HCP4ADBA 45×75×32 0.480 

NN3008KTNHA/SPC1LVU111 40×68×21 0.310 

HCS7010C.T.P4S.UL (FAG brand) 50×80×16 0.260 

1- NNU-4930-B-SP-C3-W33 - SKF = 08pcs; 150*210*60 6.250 

2- NNU-4952-B/SP/C3-W33 - SKF = 08 pcs; 260×360×100 30.500 

3- 71930 ACD-P4A-DBA - FAG = 04pcs; 150×210×56 5.100 

4- 7044 ACD-P4 DBA - FAG  = 04pcs; 220*340*112 32.000 

 7019CD/P4ADBB           2    SET 95×145×48 2.400 

 7215CD/P4ADBB           1    SET 75×130×50 3.360 

 71926ACD/P4ADBA         2    SET 130×180×24 3.100 

 BSA206CE                2    PCS 30*62*16 0.230 

 NKXR40                    1  PC 40*52*32 0.214 

 ZARN3062TN                1  PC 30*62*65 0.750 

 7018A5TYNSUMP4            2  PC 90×140×24 1.430 

Bearing Kingdom Group has more than 1,000,000 bearing products from the world's most trusted bearing brands, including SKF, FAG, Timken, RHP, NSK, INA, NTN, NACHI, NMB, KOYO, THK, and IKO.

Macroscopic appearance and causes of common cracking of bearing rings

The bearing ring is one of the important parts of the bearing. During the use of the bearing, the cracking and fracture of the bearing ring is a common form of damage. Some bearings cracked in the early use of the ring, and some bearings broke due to fatigue. The following China bearing network (hereinafter referred to as: China bearing network) shares the information according to the understanding of the bearing knowledge In daily life, we often see some macroscopic appearance of bearing ring cracking, and analyze the real cause of cracking.

1. Macroscopic appearance and causes of outer ring cracking of deep groove ball bearing

As shown in Figure 1 below, the macro morphology of bearing fracture shows that the outer ring of the bearing is fractured, and the section is basically perpendicular to the surface. As indicated by the arrow in Figure 1, the section starts from the lower surface of the outer inner diameter on the right side of the raceway in the figure, and rapidly expands to the fracture on the outer surface and to the left side. There is no obvious plastic deformation on the fracture surface of the bearing outer ring, showing brittle fracture characteristics,

After analysis, the protective atmosphere in the heat treatment furnace is a mixture of various gases, including oxidizing gas, neutral gas, reducing gas and carburizing gas. When heated at high temperature, the chemical reaction is very complex, whether it is decarburization or carburization, except for the participation of free oxygen atoms, it can reach equilibrium under certain conditions, even reversible reaction. The carbon potential in the furnace has great influence on the thickness of carburized layer, carbon content and carbon concentration gradient.

Generally speaking, the higher the carbon potential in the furnace, the steeper the carbon concentration gradient, and the greater the tendency of forming coarse and network carbides. In order to avoid the phenomenon of Carburization on the surface of bearing rings caused by high carbon potential, it is necessary to adopt appropriate heating temperature to prevent the grain growth of the steel. The heating parameters such as heating medium, heating speed, heating temperature and holding time should be selected and designed correctly, and the uniformity of furnace temperature should be strictly controlled without excessive fluctuation. By controlling the carbon potential in the furnace, the carbon concentration and concentration gradient of the bearing rings are strictly controlled, so as to ensure the heat treatment quality and service life of the rings.

CARB toroidal roller bearing C2228K bearing

FCDP5280290		260	400	290	296
FC5280300/YA3		260	400	300	295
FCDP5280335/YA3		260	400	335	294
FC5374234/YA3		265	370	234	300
FC5476230/YA3	672754	270	380	230	298
FCD5476275		270	380	275	298
FC5476280/YA3		270	380	280	297
FC5478220		270	390	220	306
FC5478220A		270	390	220	302
FCD5478240		270	390	240	298
FC5480220		270	400	220	305
FC5670208/YA3		280	350	208	298
FC5675200		280	375	200	307
FC5676170/YA3		280	380	170	306
FC5676192A		280	380	192	308
FC5676192		280	380	192	310
FCDP5676290/YA3		280	380	290	308.53
FC5678220/YA3	672756	280	390	220	312
FC5678240/YA3		280	390	240	312
FCDP5678275/YA3		280	390	275	308
FC5678275/YA3		280	390	275	312
FCD5680285/YA3		280	400	285	316
FCD5682300/YA3		280	410	300	313
FCDP5682300/YA6		280	410	300	314
FCD5684280		280	420	280	318
FC5684290/YA3		280	420	290	315
FCDP5684300/YA3		280	420	300	319
FC5684280A/YA3		280	420	280	323
FCD5878190/YA3		290	390	190	316
FC5878234/YA3		290	390	234	320
FC5880180/YA3		290	400	180	320
FC5882240/YA3	672758	290	410	240	320
FC5884300/YA3		290	420	300	327
FC5888310/YA3		290	440	310	328
FCD6080300/YA3		300	400	300	328
FCD6084180		300	420	180	332
FC6084218/YA3	672760K	300	420	218	332
FC6084240/YA3	672760	300	420	240	332
FC6084240A/YA3		300	420	240	334
FC6084240A/YA3		300	420	240	336
FCDP6084300/YA3		300	420	300	332
FC6084300/YA3		300	420	300	334
FC6086240/YA3		300	430	240	338
FC6092270/YA3		300	460	270	344
FCDP6092350/YA3		300	460	350	341
FC6284300/YA3		310	420	300	338
FC6286240/YA3		310	430	240	344.5
FCDP6288240/YA3		310	440	240	345
FCDP6488340/YA6		320	440	340	350
FC6490240/YA3		320	450	240	358
FC6490240A/YA3		320	450	240	355

Spherical roller bearing 22210CCK/W33+H310 253509 45*90*2

Type	News Model	Old Bearings	d (mm)	D (mm)	w (mm)
Spherical roller bearing	22210CCK/W33+H310	253509	45	90	23
Spherical roller bearing	22211CCK/W33+H311	253510	50	100	25
Spherical roller bearing	22212CCK/W33+H312	253511	55	110	28
Spherical roller bearing	22213CCK/W33+H313	253512	60	120	31
Spherical roller bearing	22214CCK/W33+H314	-	60	125	31
Spherical roller bearing	22215CCK/W33+H315	253513	65	130	31
Spherical roller bearing	22216CCK/W33+H316	253514	70	140	33
Spherical roller bearing	22217CCK/W33+H317	253515	75	150	36
Spherical roller bearing	22218CCK/W33+H318	253516	80	160	40
Spherical roller bearing	22219CCK/W33+H319	253517	85	170	43
Spherical roller bearing	22220CCK/W33+H320	253518	90	180	46
Spherical roller bearing	22222CCK/W33+H322	253520	100	200	53
Spherical roller bearing	22224CCK/W33+H3124	253522	110	215	58
Spherical roller bearing	22226CCK/W33+H3126	253523	115	230	64
Spherical roller bearing	22228CCK/W33+H3128	253525	125	250	68
Spherical roller bearing	22230CCK/W33+H3130	253527	135	270	73
Spherical roller bearing	22232CCK/W33+H3132	253528	140	290	80
Spherical roller bearing	22234CCK/W33+H3134	253530	150	310	86
Spherical roller bearing	22236CCK/W33+H3136	253532	160	320	86
Spherical roller bearing	22238CC/W33	53538	190	340	92
Spherical roller bearing	21304CCK+H304	253303	17	52	15
Spherical roller bearing	21305CCK+H305	253304	20	62	17