231.20.0800 Light Type Rotary Bearing

Slewing Ring Bearing Production Description 
below is the detailed drawing for 231.20.0800

 

model	Overall Dimension			Mounting Dimension
	Da	d	H	La	Li	n1	n2	φ1	φ2
	mm			mm				mm
VLA200414N ZT	503.3	304	56	455	332	10	12	M12	φ18
VLA200414N	503.3	304	56	455	332	10	12	M12	18
VLA200544N ZT	640.3	434	56	585	462	14	14	M12	φ18
VLA200544N ZT	640.3	434	56	585	462	14	14	M12	φ18
VLA200544N	640.3	434	56	585	462	14	14	M12	18
VLA200644N ZT	742.3	534	56	685	562	16	16	M12	φ18
VLA 200644N	742.3	534	56	685	562	16	16	M12	18
VLA200744N ZT	838.1	634	56	785	662	18	16	M12	φ18
VLA 200744N	838.1	634	56	785	662	18	16	M12	18
VLA200844N ZT	950.1	734	56	885	762	18	18	M12	φ18
VLA 200844N	950.1	734	56	885	762	18	18	M12	18
VLA 300955N	1096	805	90	1016	845	30	30	M20	22
VLA200944N ZT	1046.1	834	56	985	862	20	20	M12	φ18
VLA 200944N	1046.1	834	56	985	862	20	20	M12	18
VLA 301055N	1198	905	90	1116	945	30	30	M20	22
VLA201094N ZT	1198.1	984	56	1135	1012	22	20	M12	φ18
VLA 201094N	1198.1	984	56	1035	1012	22	20	M12	18
VLA 301155N	1298	1005	90	1216	1045	36	36	M20	22
VLA 301255N	1398	1105	90	1316	1145	42	42	M20	22
VLA 301355N	1498	1205	90	1416	1245	42	42	M20	22
VLA 301455N	1598	1305	90	1516	1345	48	48	M20	22

 

model	Overall Dimension			Mounting Dimension
	Da	d	H	La	Li	n1	n2	φ1	φ2
	mm			mm				mm
231.20.0400.013	504	304	56	455	332	10	12	M12	18
231.20.0400.503	504	304	56	455	332	10	24	M12	18
231.21.0475.013	504	305	56	455	332	10	12	M12	18
231.20.0500.013	640.8	434	56	585	462	14	14	M12	18
231.20.0500.503	640.8	434	56	585	462	14	28	M12	18
231.20.0500.503	640.8	434	56	585	462	14	28	M12	φ18
231.21.0575.013	640.8	435	56	585	462	14	14	M12	18
231.20.0600.013	742.8	534	56	685	562	16	16	M12	18
231.20.0600.503	742.8	534	56	685	562	16	32	M12	18
231.21.0675.013	742.8	535	56	685	562	16	16	M12	18
231.20.0700.013	838.8	634	56	785	662	18	16	M12	18
231.20.0700.503	838.8	634	56	785	662	18	32	M12	18
231.21.0775.013	838.8	635	56	785	662	18	16	M12	18
231.20.0800.013	950.4	734	56	885	762	18	18	M12	18
231.20.0800.503	950.4	734	56	885	762	18	36	M12	18
231.21.0875.013	950.4	735	56	885	762	18	18	M12	18
281.30.0900.013	1096.2	805	90	1016	845	30	30	M20	22
281.30.0900.013	1096.2	805	90	1016	845	30	30	M20	φ22
281.30.0975.013	1096.2	807	90	1016	845	30	30	M20	22
231.20.0900.013	1046.4	834	56	985	862	20	20	M12	18
231.20.0900.503	1046.4	834	56	985	862	20	40	M12	18
231.21.0975.013	1046.4	835	56	985	862	20	20	M12	18
281.30.1000.013	1198	905	90	1116	945	30	30	M20	22
281.30.1075.013	1198	907	90	1116	945	30	30	M20	22
231.20.1000.013	1198.4	984	56	1135	1012	22	20	M12	18
231.20.1000.503	1198.4	984	56	1135	1012	22	40	M12	18
231.21.1075.013	1198.4	985	56	1135	1012	22	20	M12	18
281.30.1100.013	1298	1005	90	1216	1045	36	36	M20	22
281.30.1175.013	1298	1007	90	1216	1045	36	36	M20	22
281.30.1200.013	1398	1105	90	1316	1145	42	42	M20	22
281.30.1275.013	1398	1107	90	1316	1145	42	42	M20	22
281.30.1300.013	1498	1205	90	1416	1245	42	42	M20	22
281.30.1375.013	1498	1207	90	1416	1245	42	42	M20	22
281.30.1400.013	1598	1305	90	1516	1345	48	48	M20	22
281.30.1400.013	1598	1305	90	1516	1345	48	48	M20	φ22
281.30.1475.013	1598	1307	90	1516	1345	48	48	M20	22

 

model	Overall Dimension			Mounting Dimension
	Da	d	H	La	Li	n1	n2	φ1	φ2
	mm			mm				mm
E.505.20.00.C	504	304	56	455	332	10	12	M12	φ18
E.505.20.C	504	304	56	455	332	10	12	M12	φ18
E.650.20.C	640.8	434	56	585	462	14	14	M12	φ18
E.750.20.00.C	742.8	534	56	685	562	16	16	M12	φ18
E.850.20.00.C	838.8	634	56	785	662	18	16	M12	φ18
E.950.20.00.C	950.4	734	56	885	762	18	18	M12	φ18
E.1100.32.00.C	1098	805	90	1016	845	30	30	M20	φ22
E.1050.20.00.C	1046.4	834	56	985	862	20	20	M12	φ18
E.1200.32.00.C	1200	905	90	1116	945	30	30	M20	φ22
E.1200.20.00.C	1198.4	984	56	1135	1012	22	20	M12	φ18
E.1300.32.00.C	1300	1005	90	1216	1045	36	36	M20	φ22
E.1400.32.00.C	1400	1105	90	1316	1145	42	42	M20	φ22
E.1500.32.00.C	1500	1205	90	1416	1245	42	42	M20	φ22
E.1600.32.00.C	1600	1305	90	1516	1345	48	48	M20	φ22

Why choose LYHY slewing bearings
A pioneer in slewing bearing field, rich experience, can do design, produce, mounting guide
Small order accepted
SO certified company
Variorum models
7*24hours hotline to help you with your cranes
Strict quality control system to ensure quality for slewing bearing

LYHY Slewing Bearing Types
LYHY slewing bearings can be divided into the following types as per  their structures:
single row four point contact ball slewing bearing,
single row cross roller slewing bearing,
double row different ball diameter slewing bearing,
three row cylindrical roller slewing bearing and roller/ball combination slewing bearing.
And all these types of slewing bearings can be further divided into bearings without gears, bearings with external gears and bearings with internal gears.


Detailed description of these types slewing bearings

Single row four point contact ball slewing bearings
     This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.
Single row cross roller slewing bearings
     This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.
Double row different ball diameter slewing bearings
     This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.
Triple row cylindrical roller slewing bearings
     This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.
Roller/ball combination slewing bearings
     This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.

About LYHY bearings
1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 40
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate, Science and Technology Progress Award
6. Annual Exportation: 8million USD
7. Exported countries: (39)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: Turkey, Russia, Spain, Czech Republic, Italy, Poland, Slovakia, Bosnia and Herzegovina, Austria, France, Germany, Switzerland, Finland, Ukraine, UK
America: USA, Canada, Mexico, Brazil, Puerto Rico, Peru, Chile
Africa: South Africa, Egypt
Oceania: Australia



Production Process of LYHY slewing bearings



Quality Control Process of LYHY slewing bearings


LYHY Slewing Bearing Packing 
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers  demand to be packed;
 


Slewing Ring Bearings------Applications:
Slewing ring bearings are widely used in industry and known as "the machine joints" Here under is the specific slewing bearing applications
1. Construction machinery (e.g. cranes, excavators, loader, scraper)
2. Metallurgical machinery (e.g. for steel plant)
3. Heavy machinery equipment (e.g. mining machinery, concrete machinery)
4. Marine machinery equipment (e.g. vessel, port hoisting machine, port oil transfer equipment, onshore and offshore crane)
5. Light machinery equipment (e.g. paper machine, plastic, rubber machine, weave machine)
6. Wind power generator
7. Packing machinery

Transportation:
All LYHY slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.

INSTALLATION OF LYHY SLEWING BEARINGS

Preparation:
Make sure that the model is correct and slewing bearing isn't damaged during transportation.
2.  Check the appearance and rotational state of the bearing, such as rotational precision clearance, rotating flexibility, seals position, lubrication grease etc.
3.  The installation datum plane and bracket installing plane should be clean, grease, burr, paint and other foreign body should be wiped off.

Installation:

1. The screws in the installing plane should be fit with the mounting holes in the slewing bearing
2.  The slewing bearing has a soft zone marked with an "s" on the upper surface, when installing the bearing, it is important to ensure that this area is placed in a non-load or infrequent load zone.
3.  When the bearing is placed on the supporting frame work it is important to check the interface between these two surfaces. This check should be carried out with the insertion of feel gauges between the two surfaces. If a gap should exist then it is recommended to plane/resurface the effective area so as to remove the gap.
4.  Install slewing bearing with high strength screws, and choose appropriate strength bolts. All bolts are required to be tightened evenly. The sequence of this tightening process is shown in Pic. Welding of bearing is not allowed, in the event of welding any adjacent parts, heat transfer shall be avoided so as to cause the bearing to become deformed or change the hardness.
5.  After installation, the bearing should be rotated to check for smooth operation and any emission of unusual noise. If either of the aforementioned are noted, then the bearing should be adjusted to eliminate them. The teeth of the largest run-out are coated with green paint.




FAQ:

Q: Are LYHY BEARINGS trading company or manufacturer?
A: LYHY BEARINGS is a professional manufacturer for slewing bearings, thin section bearings, ball bearings and rolling bearings

Q: How do LYHY BEARINGS control quality of their bearing?
A: LYHY BEARINGS has established strict quality control systems, all the products and services has passed ISO9001-2008 Quality Certificate and third party such as CCS, LR,ABS,BV


Q: What is the MOQ?
A: MOQ is 1pc, pls message us for detailed information.

Q: How about the package for LYHY bearings?
A: Standard Industrial packing in general condition (Plastic tube+ professional plastic belts+ plywood case). Accept design package when OEM.

Q: How long is the production time?
A: It takes about 7-40 days, depends on the model and quantity.

Q: How about the shipping?
A: We can arrange the shipment or you may have your own forwarder.

Q: Is sample available?
A: Yes, sample order is acceptable.

Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable for LYHY BEARINGS. We can design as per your requirements and use your own LOGO and package design.