Angular Contact Ball Bearing for Steam Turbine-generators

Angular Contact Ball Bearing for Steam Turbine-generators

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 10 PCS

Supply Capability:: 200000 PCS/month

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Specifications

QJ238M Angular Contact Ball Bearing for steam turbine-generators
1.High precition and long life
2.high quality

QJ238M Angular Contact Ball Bearing for steam turbine-generators

Angular contact ball bearings are particularly suitable for carrying combined (axial and radial) loads. Sometimes, they also can carry pure axial load and operate in higher speed. Under radial load, axial component force will be produced which must be counteracted. So the bearings are normally adjust against a second bearing.

Four Points Angular Contact Ball Bearing product specifications

Bearing NO.	Size(mm)			weight(kg)
Bearing NO.	d	D	B	weight(kg)
QJ206M	30	62	16	0.24
QJ207M	35	72	17	0.36
QJ208M	40	80	18	0.45
QJ209M	45	85	19
QJ210M	50	90	20	0.52
QJ211M	55	100	21	0.77
QJ212M	60	110	22	0.99
QJ213M	65	120	23	1.2
QJ214M	70	125	24	1.32
QJ215M	75	130	25	1.45
QJ216M	80	140	26	1.85
QJ217M	85	170	28	2.25
QJ218M	90	160	30	2.75
QJ219M	95	170	32	3.35
QJ222M	100	180	34	4.05
QJ224M	120	215	40	6.95
QJ226M	130	230	40	7.75
QJ228M	140	250	42	9.85
QJ230M	150	270	45	12.5
QJ232M	160	290	48	15.5
QJ234M	170	310	52	19.5
QJ236M	180	320	52	20.5
QJ238M	190	340	55
QJ244M	220	400	65
QJ246N2M
QJ252N2M	260	480	80

Angular Contact Ball Bearing for Steam Turbine-generators

FAQ:

Q:What's my consideration when I choose a bearing?

A:- The type and size of bearing you need.

- The quality or application you prefer.

Q: What's bearing's advantage.

A: - Substantial inventory, unified quality control,save much cost and time for customers.

Q: What's your guarantee on quality problem?

A: - Free to change in 2 month and in your next order,10% value of order can be paid after receiving goods and checking out no quality issues.

Q: Can I be a distributor of TIANHE?

A: Of course you can.

Q:What are the benefits of being a TIANHE distributor?

A:-Special Discount

-Marketing Protection

-Priority Delivery than other orders.

-Point to point technical supports and after sales services.

Q:How can I become a distributor of TIANHE?

A: Contact us immediately for further details by sending us an inquiry.

Packaging & Delivery

Packaging Details:	in cartons or as per customer's requirements
Delivery Detail:	25-30 days after getting the deposit

Q: Can self lubrication plain bearings bear both axial and radial loads?: Bearing type is different, the load is not the same.Self lubrication bearings, in fact, are the same as plain sliding bearings, but are designed to lubricate themselves, so they can bear axial and radial loads. General bearings can withstand two-way load, but just to accept the size is not the same.

Q: Which one is good for sliding bearings?: Our company has perfect product research and development system, designed and developed a number of new products and patents.

Q: How to determine the length of journal bearings?: First, the pressure on the bearing (ie the pressure of the Bush); two, speed (forming the conditions of the oil film); three, machining accuracy;

Q: Sliding bearings relative clearance 0.001 what?: The so-called relative clearance, refers to the sliding bearings of the Bush and bushings, nominal size tolerances can be large or small, but the gap between each other can only be 0.001.

Q: What are the two types of friction lubrication in plain bearings?: (2) the bearing material and the bush structure have a great influence on the performance of the sliding bearing. The bearing material and the bush structure should be selected by considering various factors.

Q: What is the working principle of turbine bearings in power plants?: With the turbine turn the rotor speed up, because the lubricating oil viscosity in shaft driven by more and more oil into the shaft and bearing the formation of oil contracts, oil pressure rises gradually, the rotor will slowly lift to the speed of the shaft neck on the formation of oil film stability, the above is the sliding bearing the working principle of. The whole process can be divided into dry friction, semi dry friction, half liquid friction, and whole liquid friction.

Q: What is the effect of clearance on sliding bearings?: 1, the gap between bearings and bearings.2, bearings radial series gapThe first kind of clearance will cause the bearing or bush to be damaged, and the lubrication oil pressure will be reduced. The gap is too small, which will make the bearing or bearing load increase sharply and even burn (tile)The second kind of clearance is too big, the bearing will move back and forth in the radial direction, the whole machine is not stable, the gap is too small, so that the load of the machine increases

Q: Deep groove ball bearings are better than plain bearings Which one is better?: Advantages and disadvantages of deep groove ball bearings and plain bearingsThe bearing capacity of deep groove ball bearings is not as good as that of Rongchang plain bearings, and the bearing capacity of sliding bearings is highDeep groove ball bearings, temperature Rongchang plain bearings, sliding bearings, high temperature resistance.

Q: it is better to have pictures of 6000V motors at both ends of the bearing what is called?: Rolling bearings, whether ball bearings or roller bearings, in the absence of load point contact, sliding bearings are surface contact, and no relative movement, in short, a lot

Q: What are the main failure modes of plain bearings?: There are three kinds of failure modes in rolling bearings: fatigue pitting, plastic deformation and wear. Calculation criteria:(1) for the bearings of general speed, fatigue pitting is the main failure form, and fatigue life is calculated according to the fatigue strength.

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