VLU Series Slewing Bearing Ball Bearing Lyhy Bearings VLU200744

• Customization: Available
• Standard or Nonstandard: Standard
• Sealing Gland: Sealed On Both Sides
• Model NO.: VLU200744
• Roller Type: Four Point Contact Ball
• Material: 50mn or 42CrMo4
• Type: External Gear
• Brand: Lyhy
• Custom Design: Available
• Company History: Since Year 1993
• Delivery Time: 25-30days
• Testing: in House or Third Party
• Warranty: 1year
• Forging Hardness: Hb229-269
• Transport Package: Wooden Box
• Specification: ISO2001: 9008
• Trademark: LYHY
• Origin: China
• HS Code: 848210900
• Production Capacity: 6000PCS Per Year

Product Description

Production Description for Slewing Bearing, ring bearing, rolling bearings, turntables, swing bearing
Slewing Bearing VLU200744   for construction machinery, cranes,shipyard crane
 

1	Type	single row four point contact ball slewing bearing, ring bearing, slewing gear
2	Bore diameter	634mm
3	Outside diameter	848mm
4	Height	56mm
5	Material	42CrMo, 50Mn
6	Precision	P0. P6. P5.
7	Cage/retainer	Nylon or aluminum
8	Gear type	external gear
9	N.W.	42.5KGS

model	Overall Dimension
	Da	di	H
	mm
VLU200414ZT	518	304	56
VLU200414	518	304	56
VLU200544ZT	648	434	56
VLU200544	648	434	56
VLU200644ZT	748	534	56
VLU200644ZT	748	534	56
VLU200644	748	534	56
VLU200744ZT	848	634	56
VLU200744	848	634	56
VLU200844ZT	948	734	56
VLU200844	948	734	56
VLU 300955	1100	805	90
VLU200944ZT	1048	834	56
VLU200944	1048	834	56
VLU301055	1200	905	90
VLU 201094	1198	984	56
VLU 301155	1300	1005	90
VLU 301255	1400	1105	90
VLU 301355	1500	1205	90
VLU 301455	1600	1305	90

model	Overall Dimension
	Da	di	H
	mm
230.20.0400.013	518	304	56
230.20.0400.503	518	304	56
230.21.0475.013	517	305	56
230.20.0500.013	648	434	56
230.20.0500.503	648	434	56
230.20.0500.013	648	434	56
230.21.0575.013	647	435	56
230.20.0600.013	748	534	56
230.20.0600.503	748	534	56
230.21.0675.013	747	535	56
230.20.0700.013	848	634	56
230.20.0700.503	848	634	56
230.21.0775.013	847	635	56
230.20.0800.013	948	734	56
230.20.0800.503	948	734	56
230.21.0875.013	947	735	56
280.30.0900.013	1100	805	90
280.30.0975.013	1098	807	90
230.20.0900.013	1048	834	56
230.20.0900.503	1048	834	56
230.21.0975.013	1047	835	56
280.30.1000.013	1200	905	90
280.30.1075.013	1198	907	90
230.20.1000.013	1198	984	56
230.20.1000.503	1198	984	56
230.21.1075.013	1197	985	56
280.30.1100.013	1300	1005	90
280.30.1175.013	1298	1007	90
280.30.1200.013	1400	1105	90
280.30.1275.013	1398	1107	90
280.30.1300.013	1500	1205	90
280.30.1375.013	1498	1207	90
280.30.1400.013	1600	1305	90
280.30.1400.013	1600	1305	90
280.30.1475.013	1598	1307	90
model	Overall Dimension
	Da	di	H
	mm
SD.505.20.00.C	518	304	56
SD.650.20.00.C	648	434	56
SD.650.20.00.C	648	434	56
SD.750.20.00.C	748	534	56
SD.750.20.00.C	748	534	56
SD.750.20.00.C	746	536	56
SD.950.20.00.C	948	734	56
SD.950.20.00.C	946	736	56
SD.1100.32.00.C	1100	805	90
SD.1050.20.00.C	1048	834	56
SD.1200.32.00.C	1200	905	90
SD.1200.20.00.C	1198	984	56
SD.1200.20.00.C	1198	984	56
SD.1300.32.00.C	1300	1005	90
SD.1400.32.00.C	1400	1105	90
SD.1500.32.00.C	1500	1205	90
SD.1600.32.00.C	1600	1305	90

Why choose LYHY slewing bearings
A pioneer in slewing bearing field, rich experience, can do design, produce, mounting guide
Small order accepted
ISO 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;


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.



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

8. Packing machinery

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.