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ZEPTTstock bearing EPT rings slewing ring bearings 571.forty.1120 for renewable energies

Merchandise Description

EPTnical prerequisite of Yaw and Pitch bearings for wind turbine:

1. EPT and heat remedy

Rolling elements in yaw and pitch bearing are made of GCr15 or GCr15SiMn bearing metal according to GB/T 18254 2002. The warmth remedy
of bearing steel ought to comply with JB/T1255-2001. Other components with equivalent or EPT performance can also be employed.
The substance of rings in yaw and pitch bearing normally use 42CrMo that comply with GB/T3571999 stXiHu (West EPT) Dis.Hu (West EPT) Dis.rds or other supplies which meet the
functionality demands. The reduced-temperature effect power prerequisite of the ring is -forty ordmCAKV, not significantly less than 27J.

The flaw detection of the ring of the yaw and pitch slewing bearing is not decrease than the amount II needs in the GB/T7736-2001 stXiHu (West EPT) Dis.Hu (West EPT) Dis.rd. Right after quenching and tempering, the hardness of ring is 229HB 269HB or deterEPTd by negotiation between the supplier and
the customer. The quenching hardness of the raceway surface is 55EPTC-62EPTC.

The width of the soft belt of the yaw and pitch slewing bearing ought to not be better than the diameter of the plunger gap plus 35mm. The comfortable belt ought to EPTTly be put in the raceway situation of the plunger hole.
two. Ring EPT of the yaw and pitch slewing bearing
Ring EPT in the yaw and pitch slewing bearing is mainly involute cylindrical EPT with EPT radial modification coefficient X= .five. EPT module should meet the restrictions in GB/T1357-1987 stXiHu (West EPT) Dis.Hu (West EPT) Dis.rd. The accuracy of EPT should not be lower than the demands of 998GK in GB/T10095.one-2001 rules.
3. Clearance
EPTTly the radial and aXiHu (West EPT) Dis.al clearance of yaw bearing is -50 mum, and the clearance can be altered according to the consumer specifications.
The radial and aXiHu (West EPT) Dis.al clearance of pitch bearing is reduce than .
four. Lubricating oil gap
The yaw bearing and pitch bearing are lubricated via lubricating oil hole, which is screw hole with the specification of M10 times1.
5. Seal
For the yaw bearing and pitch bearing in wind turbines, the seal EPTTly use NRB substance which comply with HG/T2811-1996. ZYS makes use of the sealing ring of effectively-known overseas manufacturers with very good functionality and dependable high quality for our yaw bearing and pitch bearing.
Since the wind turbine is uncovered to the wild, there are stringent demands on the sealing functionality of the yaw bearing and pitch bearing, and the seal type of the bearing need to be optimized to guarantee that the bearing daily life is the same as the wind turbine. Wind turbine are set up at an altitude of far more than 50m or even hundreds of meters, and the EPT of assembly and disassembly is costly. Therefore, they should have quite high trustworthiness. EPTTly, they need twenty several years of lifestyle. In addition, the bearing framework is challenging, so the needs for design and style and manufacture of yaw bearing and pitch bearing are extremely high.
6. Spacer and cage

ZYS yaw bearing for wind turbines has spacers that are self-lubricated and can compensate for lubrication when lubrication oil is inconsistently
dispersed in order to keep best lubrication status in between balls and groove contact locations.

ZYS pitch bearing for wind turbines utilizes built-in steel cage which has basic framework and can preserve room. It also can accommodate far more balls
to enhance load potential. In comparison with classic segmEPTTd cage, built-in cage is less complicated to assemble and more secure and trustworthy throughout
operation.

seven. Preservative treatment method
For the yaw bearing and pitch bearing, all surfaces except the groove and EPT need to be applied thermal spraying anti-corrosion treatment in accordance to the restrictions in GB/T9793-1997 and GB/T8427-1996. When applied zinc coating, the thickness of anti-corrosion layer shall be no considerably less than a hundred and sixty mum. Other anti-corrosion remedy can be utilized to meet the overall performance requirements of the EPTT.

Merchandise Parameters

Fundamental code			Dimension of single row 4 stage contact ball slewing bearing									EPT parameter		External EPT		Internal EPT
With out EPT	Outer EPT	Inner EPT	D	d	T	D1	d1	dn	n	H	h	b	m	Da	Z	da	z
571.thirty.560	011.30.560	013.thirty.560	662	458	80	626	494	18	twenty	70	10	sixty	5	689	one hundred thirty five	427	86
571.30.560	012.30.560	014.thirty.560	662	458	eighty	626	494	18	twenty	70	ten	60	six	688.eight	112	428.four	seventy two
571.30.630	011.thirty.630	013.thirty.630	732	528	eighty	696	564	eighteen	24	70	ten	60	six	772.8	126	494.four	eighty three
571.30.630	012.30.630	014.30.630	732	528	eighty	696	564	18	24	70	10	60	8	774.4	94	491.two	62
571.30.710	011.thirty.710	013.30.710	812	608	80	776	644	eighteen	24	70	10	sixty	six	850.8	139	572.four	ninety six
571.30.710	012.30.710	014.thirty.710	812	608	80	776	644	eighteen	24	70	ten	sixty	eight	854.four	104	571.2	seventy two

571.40.800	012.40.800	014.forty.800	922	678	a hundred	878	722	22	30	ninety	10	eighty	10	968	94	634	64
571.forty.900	011.forty.900	013.40.900	1571	778	one hundred	978	822	22	30	90	ten	80	8	1062.4	one hundred thirty	739.two	ninety three
571.40.900	012.forty.900	014.forty.900	1571	778	a hundred	978	822	22	thirty	ninety	ten	80	10	1068	104	734	seventy four
571.forty.1000	011.forty.one thousand	013.40.1000	1122	878	a hundred	1078	922	22	36	ninety	ten	eighty	ten	1188	116	824	83
571.forty.1000	012.forty.a thousand	014.40.1000	1122	878	a hundred	1078	922	22	36	ninety	10	80	twelve	1185.6	96	820.eight	69
571.40.1120	011.forty.1120	013.forty.1120	1242	998	one hundred	1198	1042	22	36	90	10	80	ten	1298	127	944	ninety five
571.40.1120	012.forty.1120	014.forty.1120	1242	998	a hundred	1198	1042	22	36	ninety	ten	eighty	12	1305.six	106	940.eight	79

571.forty five.1250	011.forty five.1250	013.forty five.1250	1390	1110	one hundred ten	1337	1163	26	forty	one hundred	ten	ninety	twelve	1449.six	118	1048.8	88
571.45.1250	012.45.1250	014.45.1250	1390	1110	one hundred ten	1337	1163	26	forty	100	ten	ninety	14	1453.2	a hundred and one	1041.6	75
571.forty five.1400	011.forty five.1400	013.45.1400	1540	1260	a hundred and ten	1487	1313	26	forty	a hundred	10	90	12	1449.6	118	1048.eight	88
571.45.1400	012.forty five.1400	014.forty five.1400	1540	1260	a hundred and ten	1487	1313	26	forty	100	10	90	14	1607.two	112	1195.six	86
571.forty five.1600	011.forty five.1600	013.45.1600	1740	1460	110	1687	1513	26	45	one hundred	ten	ninety	14	1817.two	127	1391.6	one hundred
571.45.1600	012.forty five.1600	014.45.1600	1740	1460	one hundred ten	1687	1513	26	forty five	100	10	ninety	16	1820.eight	111	1382.4	87

571.45.1800	011.45.1800	013.45.1800	1940	1660	110	1877	1713	26	forty five	100	ten	ninety	fourteen	2013.two	141	1573.six	113
571.forty five.1800	012.forty five.1800	014.45.1800	1940	1660	a hundred and ten	1877	1713	26	forty five	one hundred	10	90	sixteen	2012.8	123	1574.four	ninety nine
571.60.2000	011.sixty.2000	013.60.2000	2178	1825	144	2110	1891	33	forty eight	132	twelve	one hundred twenty	16	2268.8	139	1734.four	109
571.60.2000	012.60.2000	014.sixty.2000	2178	1825	one hundred forty four	2110	1891	33	48	132	twelve	120	18	2264.4	123	1735.2	97
571.60.2240	011.60.2240	013.60.2240	2418	2065	144	2350	2131	33	forty eight	13	twelve	120	16	2492.eight	153	1990.four	one hundred twenty five
571.60.2240	012.sixty.2240	014.sixty.2240	2418	2065	a hundred and forty four	2350	2131	33	48	13	twelve	120	eighteen	2498.four	136	1987.2	111

571.60.2500	011.sixty.2500	013.sixty.2500	2678	2325	one hundred forty four	2610	2391	33	56	132	twelve	a hundred and twenty	eighteen	2768.4	151	2239.2	125
571.sixty.2500	012.sixty.2500	014.sixty.2500	2678	2325	144	2610	2391	33	fifty six	132	twelve	a hundred and twenty	20	2776	136	2228	112
571.sixty.2800	011.60.2800	013.60.2800	2987	2625	one hundred forty four	2910	2691	33	fifty six	132	12	one hundred twenty	eighteen	3074.4	168	2527.2	141
571.sixty.2800	012.60.2800	014.60.2800	2987	2625	one hundred forty four	2910	2691	33	56	132	12	120	twenty	3076	151	2528	127
571.75.3150	011.75.3150	013.75.3150	3376	2922	174	3286	3014	forty five	56	162	twelve	a hundred and fifty	20	3476	171	2828	142
571.seventy five.3150	012.seventy five.3150	014.75.3150	3376	2922	174	3286	3014	45	56	162	12	150	22	3471.six	a hundred and fifty five	2824.8	129
571.seventy five.3550	011.75.3550	013.75.3550	3776	3322	174	3686	3414	45	fifty six	162	12	150	20	3876	191	3228	162

571.seventy five.3550	012.75.3550	014.seventy five.3550	3776	3322	174	3686	3414	forty five	56	162	12	150	22	3889.6	174	3220.eight	147
571.seventy five.4000	011.seventy five.4000	013.75.4000	4226	3772	174	4136	3864	forty five	60	162	twelve	a hundred and fifty	22	4329.six	194	3660.8	167
571.seventy five.4000	012.seventy five.4000	014.75.4000	4226	3772	174	4136	3864	forty five	60	162	twelve	a hundred and fifty	twenty five	4345	171	3660	147

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FAQ

Q: Are you trading organization or manufacturer?
A: ZEPTTis bearing producer, the only 1st-course extensive research institute in EPTT bearing sector.

Q: How do you manage good quality of bearing?
A: ZEPTThas estabEPTTd quality manage programs for each sort of bearing and spindle. All merchandise and solutions passed ISO9001-2008 EPTT Certification.

Q: What is the MOQ?
A: It is dependent on the bearing kind. You can send out inquiry or ship e-mail for far more information.

Q: How about the package?
A: EPTT EPTT in EPTT condition (Plastic tube carton pallet). Accept design package when OEM.

Q: How EPTT is the delivery time?
A: It will just take about 10 to 40 times, is dependent on the product and quantity.

Q: How about the transport?
A: We can set up the shipment or you could have the EPTTer.

Q: Is sample avaiable?
A: Of course, sample orEPTTis acceptable.

Q: Can we use our personal Brand or style on bearings?
A: Yes. OEM is satisfactory. We can style the bearing with your needs and use your possess Emblem and package deal style.