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:The study on the friction and wear behavior of thrust bearings under oil lubrication conditions at home and abroad, their significance and future prospects!!!! The best reference source. Thank you if there are similar can be sent to my mailbox.: A journal bearing bearing axial thrust and restricting axial movement of the shaft. In two [1] thrust bearing friction surface is completely separated from the fluid film is divided into hydrodynamic thrust bearing and hydrostatic thrust bearing, suitable for high speed operation. Two a thrust bearing whose surface is not completely separated by a fluid film operates under boundary lubrication (see lubrication) and is only suitable for low speed operation.

Q:Why does the sliding bearing use clearance fit?: This is different from the rolling bearings, the shaft and rolling bearings of the inner ring is interference fit, because the shaft should be rolling bearing with the inner ring together to rotate.

Q:What are the bearing capacity of the bearings when they are discharged at the end?: In the case of sufficient oil supply, the end discharge of the sliding bearing will reduce heat, play a cooling role, and can improve the load of the sliding bearing.

Q:What are the commonly used sliding bearing bushing materials: (3) oilless bearings. It is a kind of porous material which is made of bronze and cast iron powder, pressed by heavy graphite, and sintered by high temperature. It is often used in low or medium speed, light load and inconvenient lubrication.(4) nylon. Nylon, nylon 6 and nylon 1010 are commonly used. The nylon bearing has the advantages of good running and good quality, soft fragments after wear, no damage to the shaft neck, good corrosion resistance, etc. the heat conductivity is poor, and the water can swell when the water is absorbed.

Q:sliding bearing: Sliding is tile, the ball is supporting the rotor ah, I suggest you go to the next two definitions, speed and load size, with what bearingsAskWhat if the rolling bearings on the bicycle were replaced by sliding bearings?Chasing the answerIf the modification is not up, ha ha, between the tile and the shaft at rest is at least half of direct contact, to work, to top up oil, have a certain pressure, then to work, but also with a similar pump shaft, ha ha

Q:On what occasions are plain bearings used?: 3, heavy load occasions;4, under the condition of tremendous impact and vibration;5, need to be made into split bearing occasions;

Q:The sliding bearing consists of several parts. What are the parts?: Sliding bearings (sliding, bearing) bearings that work under sliding friction. Plain bearings work smoothly, reliably and without noise. Under the condition of liquid lubrication, the sliding surface is separated by the lubricant without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity. But the starting friction resistance is larger. The shaft supported by the bearing is called the journal, and the part that matches the journal is called the bush. In order to improve the friction properties of the bearing surface, the antifriction material layer, which is cast on its inner surface, is called the bearing lining. Bearing and bearing lining materials are collectively referred to as journal bearing materials. Sliding bearing applications are generally under low speed heavy load conditions, or maintenance and lubrication of the difficult parts of the operation.

Q:Explanation of sliding bearing code: 6309-2z/p5: (2) prefix codeThe bearing prefix is used to represent the bearing parts and is represented by letters. For example, separable rings for separable bearings are represented by L; the K represents the rolling element of the bearing and the cage assembly.(3) post codeThe rear code of the bearing is used to indicate the structure, tolerances and special requirements of materials, such as letters and numbers. There are many contents of the post code name. Here are some commonly used code names.1) the internal structural code is the different internal structure of the same type of bearing, followed by the basic code. Such as: contact angle of 15 degrees, 25 degrees and 40 degrees of angular contact ball bearings, respectively, with C, AC and B that {HotTag} internal structure of the difference.2) bearing tolerance grade is divided into 2 levels, 4, 5, 6, 6X and 0, a total of 6 levels, followed by advanced to low-level, its code names are /PZ, /P4, /PS, /P6, /P6X and /PO. Tolerance class, 6X class applies only to tapered roller bearings; 0 is an ordinary class, in the wheel bearing code is not marked..3) bearing radial clearance series commonly divided into 1 groups, 2 group, 0 group, 3 group, 4 group and 5 group, a total of 6 groups, sequentially larger radial clearance. O group clearance is a common clearance group, in the bearing code is not marked, and the rest of the clearance group in the bearing code respectively with /CI, /CZ, /C3, /C4, /CS said.

Q:What is the performance of plain bearings?: Journal bearings, i.e., bearings that work under sliding friction. Under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity. Therefore, the work is stable, reliable and noiseless.

Q:What is the clearance ratio between the plain bearing and the shaft?: I don't think so. I do rolling bearings, I'm sorry

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