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Failure Causes Of Self-Aligning Ball Bearings, Key Points Of Operation Inspection And Daily Maintenance Skills

After the installation of Timken bearing, in order to check whether the installation is correct, operation inspection shall be carried out. Self-Aligning Ball Bearing Small machinery can be rotated by hand to confirm whether it rotates smoothly.

Self-Aligning Ball Bearing

The inspection items include poor operation caused by foreign matters, scars and indentation, unstable torque caused by poor installation and poor processing of mounting base, excessive torque caused by too small clearance, installation error and sealing friction, etc. If there is no abnormality, the power operation can be started.
Large machinery cannot rotate manually, so the power shall be cut off immediately after no-load start, and the machinery idles. Check Self-Aligning Ball Bearing whether there is vibration, noise, contact of rotating parts, etc. after confirming that there is no abnormality, enter the power operation.
Power operation, starting from no-load and low speed, slowly increase to the rated operation under the specified conditions. During the test run, the inspection items are whether there is abnormal sound,temperature change of self-aligning ball bearing, lubricant leakage or discoloration, etc. If any abnormality is found, stop the operation Self-Aligning Ball Bearings immediately, check the machinery, and remove the bearing for inspection if necessary.
Timken bearing temperature can generally be inferred from the external temperature of the bearing pedestal. However, it is more accurate to directly measure the temperature of the bearing outer ring by using the oil hole.
The bearing temperature rises gradually from the beginning of operation,and the temperature is usually stable after 1 ~ 2 hours. If the bearing is not installed properly, the temperature will rise sharply, resulting in abnormal high Self-Aligning Ball Bearings temperature.
The reasons are too much lubricant, too small bearing clearance, poor installation,excessive friction of sealing device, etc. In the case of high-speed Self-Aligning Ball Bearings rotation, Timken bearing structure and wrong selection of lubrication mode are also the reasons.

The rotating sound of Timken bearing is checked with stethoscope,and there are strong metal noise, abnormal sound, irregular sound and other indications of Self-Aligning Ball Bearings abnormality. The reasons are poor lubrication, poor accuracy of shaft or bearing seat, bearing damage, foreign matter intrusion, etc.
Under the action of instantaneous high temperature, the steel surface reacts with oxygen in the air to form an extremely thin (20 ~ 30nm) thin layer of iron oxide.
It should be noted that there is a corresponding relationship between the thickness of oxide layer and the total thickness of surface grinding metamorphic layer. This shows that the thickness of oxide layer is directly related to the grinding process and is an important symbol of grinding quality.
1. First of all, you must buy real self-aligning ball bearings. If you buy fake bearings, you won’t live long in any way.
2. Before installing the bearing, first check whether the bearing is short of oil and clean, and then install the bearing correctly after checking the parts of the machine to be installed and determining the grease and cleaning.
3. After the bearings are installed, the bearings are put into trial Self-Aligning Ball Bearings operation. After running for a while, no abnormality is found in the inspection, and the bearings can enter the service state normally.
4. To check regularly, the lubrication of each Timken bearing is very important, and the bearing is no exception. When maintaining the bearing, first check whether the bearing surface is clean. If it is not clean enough, first flush it with Self-Aligning Ball Bearings gasoline or alcohol, and then grease it.
If there is too much grease between the two bearings, do not add too much grease as long as there is grease between the two bearings. When using grease for self-aligning ball bearings, avoid contacting any part of the bearing with cotton fabric, which may cause some residual fibers to roll and cause damage.
Determine the time of each inspection, and then check whether it is short of oil and clean according to the normal time. If these points are done well, the self-aligning ball bearing can live a long life.

Self Aligning Ball Bearing

Self aligning ball bearings are equipped with spherical balls between the inner and outer rings of the two raceways, and the raceways are spherical.

Deruna supplies all self aligning bearing types: self aligning linear ball bearing, flange self-aligning bearings, thrust self-aligning bearings; optional brands include: SKF, NTN, NSK, KOYO, TIMKEN, etc., or customized non-standard according to customer’s application Dimensional self-aligning bearings.

Cooperation Brands

Parameters of Self-aligning ball bearing

New domestic models	Old domestic model	Inner diameter (mm)	Outer diameter (mm)	Width(mm)	Cr(kN)	Cor(kN)	Grease lubrication speed (r/min)	Oil lubrication speed (r/min)	Weight (kg)	View Details
1026	1026	6	19	6	2.5	0.48	30000	37000	0.009
1018	1018	8	22	7	2.6	0.56	26000	33000	0.014
1200	1200	10	30	9	5.5	1.2	23000	28000	0.034
1202	1202	1215	35	11	7.45	1.75	18000	22000	0.049
1201	1201	23	32	10	5.6	1.25	21000	26000	0.04
1203	1203	17	40	12	7.9	2	16000	20000	0.073
1204	1204	20	47	14	9.9	2.6	14000	17000	0.12
1205	1205	25	52	15	12.012.1	3.3	12000	14000	0.141
2200	1500	10	30	14	7.4	1.6	23000	29000	0.047
Bearing 2201	1501	12	32	14	7.65	1.75	21000	26000	0.053
2202	1502	15	35	14	7.7	1.85	18000	22000	0.06
2203	1503	17	40	16	9.8	2.4	16000	20000	0.088
2204	1504	20	47	18	12.6	3.3	14000	17000	0.14
1200	1200	10	30	9	5.5	1.2	23000	28000	0.034
1202	1202	1215	35	11	7.45	1.75	18000	22000	0.049
1201	1201	23	32	10	5.6	1.25	21000	26000	0.04
1203	1203	17	40	12	7.9	2	16000	20000	0.073
1204	1204	20	47	14	9.9	2.6	14000	17000	0.12
1205	1205	25	52	15	12.012.1	3.3	12000	14000	0.141
Bearing 1206	1206	30	62	16	15.6	4.65	9900	12000	0.22
1208	1208	40	80	18	19.2	6.5	7500	9200	0.417
1207	1207	35	72	17	15.8	5.1	8500	10000	0.323
1210	1210	50	90	20	22.7	8.1	6500	7900	0.525
1209	1209	45	85	19	21.8	7.35	7000	8500	0.465
1211	1211	55	100	21	26.8	10	5800	7100	0.705
1212	1212	60	110	22	30.2	11.5	5200	6400	0.9
1213	1213	65	120	23	31	12.5	4800	5800	1.15
1214	1214	70	125	24	34.6	13.8	4600	5700	1.26
1215	1215	75	130	25	38.8	15.7	4300	5300	1.36
1216	1216	80	140	26	39.8	17	4000	4900	1.67
1217	1217	85	150	28	49.2	20.8	3800	4600	2.07
1218	1218	90	160	30	56.8	23.4	3500	4300	2.52
1219	1219	95	170	32	57	24.3	3300	4000	3.1
1220	1220	100	180	34	69	29.7	3100	3800	3.7
1300	1300	10	35	11	7.25	1.6	20000	24000	0.058
1301	1301	12	37	12	9.4	2.15	18000	22000	0.067
1302	1302	15	42	13	9.55	2.3	16000	20000	0.094
1303	1303	17	47	14	12.5	3.2	14000	17000	0.13
1304	1304	20	52	15	12.4	3.3	13000	15000	0.163
1305	1305	25	62	17	18	5	9900	12000	0.257
1306	1306	30	72	19	21.3	6.3	8700	11000	0.387
1307	1307	35	80	21	25.1	7.85	7600	9300	0.51
1308	1308	40	90	23	29.5	9.7	6900	8400	0.715
1309	1309	45	100	25	38.1	12.7	6100	7500	0.957
1310 Bearing	1310	50	110	27	43.4	14.1	5600	6800	1.21
1311	1311	55	120	29	51.3	17.9	5000	6200	1.58
1312	1312	60	130	31	57.2	20.8	4500	5500	1.96
1313	1313	65	140	33	61.7	22.9	4300	5200	2.45
1314	1314	70	150	35	74	27.7	4000	4900	2.99
1315	1315	75	160	37	78.9	29.9	4000	4900	3.56
1316	1316	80	170	39	88.1	33.1	3500	4300	4.18
1317	1317	85	180	41	97.3	37.8	3300	4000	4.98
Bearing 1318	1318	90	190	43	116	44.4	3100	3800	5.8
1319	1319	95	200	45	132	50.8	2900	3600	6.69
1320	1320	100	215	47	143	57.3	2800	34000	8.3
2200	1500	10	30	14	7.4	1.6	23000	29000	0.047
2201	1501	12	32	14	7.65	1.75	21000	26000	0.053
2202	1502	15	35	14	7.7	1.85	18000	22000	0.06
2203	1503	17	40	16	9.8	2.4	16000	20000	0.088
2204	1504	20	47	18	12.6	3.3	14000	17000	0.14
2205	1505	25	52	18	12.6	3.3	12000	15000	0.163
2206	1506	30	62	20	15.6	4.65	1000	12000	0.26
2207	1507	35	72	23	21.6	6.6	8500	10000	0.403
2208	1508	40	80	23	22.522.4	7.4	7600	9300	0.505
2209	1509	45	85	23	23.3	8.15	7000	8500	0.545
2210	1510	50	90	23	23.3	8.5	6500	7900	0.59
2211	1511	55	100	25	26.8	10	5800	7100	0.81
2212	1512	60	110	28	34.1	12.6	5300	6500	1.09
2213	1513	65	120	31	43.5	16.4	4900	5900	1.46
2214	1514	70	125	31	44	17	4500	5600	1.62
2215	1515	75	130	31	44.2	17.8	4300	5300	1.62
2216	1516	80	140	33	49	19.9	4100	5000	2.01
2217	1517	85	150	36	58.3	23.6	3800	4600	2.52
2218	1518	90	160	40	67.7	27.2	3500	4300	3.4
2219	1519	95	170	43	82.7	34.3	3300	4000	4.1
2220	1520	100	180	46	80.9	34	3100	3800	4.98
Bearing 2305	1605	25	62	24	24.4	6.6	9400	13000	0.335
2306	1606	30	72	27	31.4	8.75	8000	11000	0.5
2307	1607	35	80	31	39.4	11.3	7100	9800	0.675
2308	1608	40	90	33	44.9	13.5	6200	8600	0.925
2309	1609	45	100	36	54.4	16.7	5600	7700	1.23
2310	1610	50	110	40	64.6	20.3	5100	7000	1.64
2311	2311	55	120	43	75.3	24	4600	6400	2.1
2312	1612	60	130	46	87.2	28.3	4200	5800	2.6
2313	1613	65	140	48	95.8	32.5	3800	5300	3.23
2314	1614	70	150	51	89.6	31.7	3600	4900	4.23
2315	1615	75	160	55	103	36.8	3400	4600	5.13
2316	1616	80	170	58	129	45.7	3100	4300	6.1
2317	1617	85	180	60	141	51.5	3000	4100	7.05
2318	1618	90	190	64	153	57.9	2800	3900	8.44
2319	1619	95	200	67	166	64.8	2700	3700	9.79
2320	1620	100	215	73	183	73.4	2400	3400	12.4

Features of Self Aligning Ball Bearings

Adapts to static and dynamic deviations
The bearings are self-aligning like spherical roller bearings or CARB bearings.
Excellent high-speed performance
Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to operate at lower temperatures even at high speeds.
Minimal maintenance
Lower bearing temperatures due to low heat generation, resulting in longer bearing life and maintenance intervals.
Low friction
The very loose fit between the balls and outer ring keeps friction and frictional heat at a low level.
Excellent light load performance
Self-aligning ball bearings have a low minimum load requirement.
Low noise
Self-aligning ball bearings reduce noise and vibration levels, for example in fans.

Application of self aligning ball bearing

Two types of self aligning bearings：

Cylindrical hole and tapered hole, cage made of steel plate, synthetic resin, etc. Its characteristics are the outer ring raceway for the spherical, with automatic alignment function, can compensate for the error caused by the misalignment and shaft deflection, but the relative inner and outer ring tilt should not exceed 3 degrees.

Self aligning bearing are ideal for applications where misalignment between shaft and housing is a problem. Due to their design, self-aligning ball bearings can withstand misalignments of up to 3° without increasing the amount of friction and the frictional heat generated. However, due to the relatively small contact angle of these bearings, the axial load carrying capacity is not as high as, for example, angular contact bearings. These bearings can handle both static and dynamic misalignments. Sealed self-aligning ball bearings also protect it from dust and other contaminants. Spherical ball bearings can be used in many different areas such as mining, food processing and mass production applications such as the textile industry.

Shipping & Package of self aligning ball bearing

Shipping port: Qingdao/Tianjin
Supply Ability: 100,000 pieces per month
Package：

Plastic bag + single box + carton + plywood pallet
Neutral industrial packaging + neutral carton packaging + pallet
According to customer requirements

Factory and Warehouse Display

SKF,FAG,NSK,KBC, NTN and other brands of bearings and special bearings customized according to customer needs have been produced, packed in boxes in our warehouse, and are waiting to be packaged and delivered to your hands.Please send us the bearing model you need, and we will give you the best self aligning ball bearing price.

Metal seals R48

Metal seals BX 155

Bearing T311 for high quality crosshead mud pump connecting rod oilfield equipment

DAC35680037 Automotive Wheel Bearing

22313Bearings

6320 Bearings

FAQ

Self aligning ball bearing construction?

Self aligning ball bearings consist of an outer ring, an inner ring, rolling elements, a cage to accommodate the rolling elements and a seal to protect the balls from contaminants and other dirt.

Outer ring: The outer ring of the bearing has a smooth spherical surface and no raceways. The shape of the outer ring allows for slight movement within the bearing, thus enabling the bearing to be self-aligning.
Inner ring: The inner ring of spherical bearings has two raceways to keep the balls and cage in place.
Rolling body and cage: The rolling body on a spherical ball bearing is held in place by the cage and inner ring. Friction and frictional heat are very low due to the loose structure between the balls and the inner and outer rings. Cages are usually made of stamped steel, PA66, reinforced glass fibre or machined brass.
Sealing: Sealed self-aligning ball bearings ensure that dust and other contaminants do not affect the rolling elements of the bearing.

What is the difference between self aligning ball bearings and self aligning roller bearing?

Spherical roller bearings are suitable for heavy loads at low rotational speeds, while spherical ball bearings are suitable for light loads at high rotational speeds.

What are the recommended greases for self aligning ball bearing?

The recommended grease for self-aligning ball bearings depends on the conditions of use.

You can also use the selection criteria to find the right grease for deep groove ball bearings with spherical bearings.

Can I use self-aligning ball bearings with thrust loads?

Due to the small contact angle, the thrust load capacity of self-aligning ball bearings is extremely limited.
If thrust loads are expected, please consider using a thrust bearing with spherical seats.

Can I use self-aligning ball bearings with thrust loads?

Popular self-aligning ball bearing numbers

2202 etn9；2201 etn9；1305 etn9；2309 etn9；1306 etn9；2204 etn9；2215 ektn9；

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Failure Causes Of Self-Aligning Ball Bearings, Key Points Of Operation Inspection And Daily Maintenance Skills

Self-Aligning Ball Bearing

Self Aligning Ball Bearing

Cooperation Brands

Parameters of Self-aligning ball bearing

Features of Self Aligning Ball Bearings

Adapts to static and dynamic deviations

Excellent high-speed performance

Minimal maintenance

Low friction

Excellent light load performance

Low noise

Application of self aligning ball bearing

Two types of self aligning bearings：

Shipping & Package of self aligning ball bearing

Factory and Warehouse Display

Hot Products

Metal seals R48

Metal seals BX 155

Bearing T311 for high quality crosshead mud pump connecting rod oilfield equipment

DAC35680037 Automotive Wheel Bearing

22313Bearings

6320 Bearings

FAQ

CONTACT US

Guarantees & Return policy

FOLLOW US:

Types of Bearings

Get Your Free Quote

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