7008 Angular contact ball bearings bearing

7008 Angular contact ball bearings bearing System 1

7008 Angular contact ball bearings bearing System 2

7008 Angular contact ball bearings bearing

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1000 pc

Supply Capability:: 500000 pc/month

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Angular Contact Ball Bearing for Steam Turbine-generators

Turntable Bearing Precision Manufacturer China

Sepcification:

Angular contact ball bearings can bear radial load and axial load at the same time and also can bear pure axial load. Their ability of axial load is determined by contact angle and is increased with contact angle increasing; speed limit is higher; stiffness is big and can be pre-adjusted. They are applicable to high-speed and high-precision site.

Product application:

- spindle and other high speed precision mechanical spindle

- aircraft engine spindle

- high frequency motor

- printing machinery

- air compressor

- gas turbine

- jet engines

- turbines

-pump

Design ations	Principal dimensions (mm)			〆15º		〆25º
	Principal dimensions (mm)			Limit speed		Limit speed
	d	D	B	Basic load rating	Lubrication	Rated load	Lubrication
	d	D	B	Cr Cor	Grease Oil	Cr Cor	Grease Oil
70 Series single angular contact ball bearings
7003	17	35	10	6.7 4.9	44000 66000	6.4 4.7	39000 59000
7004	20	42	12	9.6 6.3	37000 55000	9.2 6.0	33000 49000
7005	25	47	12	12.9 8.7	33000 49000	12.3	29000 44000
7006	30	55	13	15.7 11.6	27000 42000	14.9 10.9	23000 37000
7007	35	62	14	19.3 17.5	19000 33000	10.4 10.3	19000 33000
7008	40	68	15	19.9 19.1	18000 31000	18.9 18.2	16000 27000
7009	45	75	16	26.7 25.3	16000 27000	25.4 24.1	15000 25000
7010	50	80	16	27.6 27.5	15000 25000	26.2 26.2	14000 23000
7011	55	90	18	36.7 37.1	13000 21000	34.8 35.3	12000 19000
7012	60	95	18	37.8	13000 21000	35.8 38.0	11000 18000
7013	65	100	18	38.9 42.9	12000 19000	36.8 40.7	10000 17000
7014	70	110	20	49.9 55.5	11000 18000	47.2 52.7	9000 16000
7015	75	115	20	51.3 59.2	10000 17000	48.5 56.2	8500 15000
7016	80	125	22	61.6 70.4	9000 16000	58.3 66.9	8000 14000
7017	85	130	22	63.6	8500 15000	59.9 71.3	7500 13000
7018	90	140	24	66.9	8000 14000	63.2 79.7	7000 12000
7019	95	145	24	79.1 97.6	7500 13000	74.8	6500 11000
7020	100	150	24	81.2 103.3	7000 12000	76.7	6000 10000
7021	105	160	26	93.9 118.2	6500 11000	88.8	6000 10000
7022	110	170	28	110.4 139.8	6000 10000	104.4 132.8	5700 9000
7024	120	180	28	112.7 148.7	6000 10000	106.3 141.1	5700 9000
7026	130	200	33	144.8 190.8	5700 9000	136.8 181.0	5000 8000
7028	140	210	33	148.7 202.6	5000 8000	140.4 192.2	4600 7500
7030	150	225	35	168.4 232.5	4600 7500	159.1 220.6	4000 6500
7032	160	240	38	189.1 264.5	4000 6500	178.6 251.0	3800 6000
7034	170	260	42	205.6 299.3	3800 6000	194.2 284.0	3300 5300
7036	180	280	46	229.5 352.1	3500 5700	216.8 334.1	3000 5000

Q: What are the differences between angular contact bearings and deep groove ball bearings?: The difference between deep groove bearings with the angular contact bearings in the structure is: deep groove bearings and rolling contact rail check section view on the parallel with the axis, the angular contact bearing rail has an open angle in one direction, and the axis or axis of the vertical line and an alpha angle. As shown. No. 6 bearings mainly bear radial force, bearing No. 7 can bear radial force and axial force.

Q: What does angle contact back to back mean?: Angular contact ball bearings are interesting bearings. Divided the face and back. And others, ha ha.See young lovers not.Happy time, hold together KISS, KISS is certainly the mouth to mouth, face to face, we use the word FACE to English it said about this status. ?When angry, who also ignore, two people are turned away, back to back, this is back to back, we use the word BACK to English it said about this status.Whether back-to-back or face-to-face, it must be by a movement of two or more than two people to complete (a person, it had to go in front of the mirror), we have two people to do that, we use DOUBLE to represent these two individuals.DOUBLE: twoFACE: faceBACK: backSee the above three words, no, very clever, angular contact ball bearings also say so.On behalf of the two sets of bearings with DOUBLE - is a "D",Using FACE for face to face, shorthand is a "F"",BACK - back to back, is a "B".OK, now came out in angular contact ball bearings inside the two face is bearing code BF, two back-to-back bearing is DB.

Q: Angular contact ball bearings, how to judge the size of the mouth?: Yes, look at the outer ring of the bearing. The thinner end is the big one.

Q: What does angular contact ball bearing 70216AC mean?: 7--- angular contact ball bearing0--- normal width series2--- diameter series code, which means light series16--- internal diameter code indicating the inner diameter of 16*5=80mmAC--- internal structure code indicating the nominal contact angle of angular contact bearing is 25 degrees

Q: The difference between ultra high speed angular contact ball bearings and other plain bearings: The roller of angular contact ball bearings is ball, because it is a point contact (different from roller bearing line contact), so it can provide higher speed, smaller heating quantity and higher rotation precision. In some high speed spindle applications, ceramic ball hybrid bearings will also be used. Compared with the traditional steel ball, the characteristics of ceramic ball materials endow the ceramic ball bearings with high rigidity, high speed, high temperature resistance and long service life, so as to meet the customers' demand for machine tool bearing products. (flight five Rui reminded you, at present, the mainland ceramic ball mixed bearings spot less, in your choice of such imported bearings, you need to pay attention to delivery time).On the contact angle of angular contact ball bearings, 15 popular and the contact angle of 25 speed; high performance usually contact angle of 15, while the axial contact angle of 25 with high bearing capacity. Due to the effect of preload contact application of ball bearings for precision angle is very large, such as high load capacity, high rigidity of the occasion, will generally choose bearing pre medium or heavy load; and for some applications of high speed and high precision, in the early selection of imported bearings, need to pay attention to choose the appropriate pre load. Pre load is generally divided into light, medium, heavy three kinds, generally light preload is more common. In order to facilitate the use of customers, the general will have universal matching, precision angular contact ball bearings. This type of imported bearings eliminates the customer's preload adjustment, thus saving installation time.

Q: Can angular contact ball bearings be adjustable?: May not。Self-aligning ball bearings and spherical roller bearings are adjustable.

Q: What are the reasons for the use of tapered roller bearings and angular contact ball bearings?: Selection of bearings in accordance with the theory and practice of judgment, that is, bearing capacity and the form of movement and load factors are different. That is, the role of the two bearings

Q: Two angular contact ball bearings, the use of clearance problems: No adjustment required,DB: back to backDF: face to faceDT: series connectionSU: single arbitrary combinationDU: any combination of two bearings.

Q: How many angles are there in angular contact ball bearings? How many degrees are they?: A stands for 30 degrees, A5 stands for 25 degrees, B stands for 40 degrees, and C stands for 15 degreesThe new Seiko NSK serves you!

Q: How can angular contact be distinguished from the front and back? What are the characteristics of each?: There is no difference between the front and the back of this bearing.There's something wrong with my answer.

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