920 Slewing Ring Untoothed Swing Bearing

• Customization: Available
• Standard or Nonstandard: Standard
• Sealing Gland: Sealed On Both Sides
• Model NO.: 90-20-0641/0-37032
• Rolling-Element Number: Single-Row
• Roller Type: Four Point Contact Ball
• Material: 50mn, 42CrMo,S48c
• Type: External Gear
• Brand: Lyhy
• Custom Design: Available
• Company History: Since 1993
• Testing: in House
• Gear Type: External Gear
• Gear Hardness: HRC50-55
• Transport Package: Wooden Box
• Specification: need to be discussed
• Trademark: LYHY
• Origin: Luoyang City, China
• HS Code: 848210900
• Production Capacity: 300PCS/Month

Product Description

Production Description for Slewing Bearing, ring bearing, rolling bearings, turntables
Large Diameter Slewing Bearing 90-20-0641/0-37032 for Port Crane 

1	Type	flange type slewing bearing,ring bearing, slewing gear
2	Bore diameter	2868mm
3	Outside diameter	3476mm
4	Height	270mm
5	Material	42CrMo, 50Mn
6	Precision	P0. P6. P5.
7	Cage/retainer	Nylon or aluminum
8	Gear type	External gear
9	N.W.	5409KGS

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;

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.






 

Model	Da(inch)	di(inch)	H(inch)
untoothed
90-20 0311/0-37002	16.457	8.031	2.205
90-20-0413/0-37012	20.394	11.969	2.205
90-20-0541/0-37022	25.512	17.087	2.205
90-20-0641/0-37032	29.499	21.024	2.205
90-20-07410-37042	33.386	24.961	2.205
90-20-0841/0-37052	37.323	28.899	2.205
90-20-0941/0-37062	41.26	32.835	2.205
90-20-1091/0-37072	47.165	39.74	2.205
external toothed
91-20 0311/0-37102	15.9	8.031	2.205
91-20-0413/0-37112	19.9	11.969	2.205
91-20-0541/0-37122	25.15	17.087	2.205
91-20-0641/0-37132	29.15	21.024	2.205
91-20-07410-37142	32.9	24.961	2.205
91-20-0841/0-37152	37.2	28.899	2.205
91-20-0941/0-37162	41.2	32.835	2.205
91-20-1091/0-37172	46.867	39.74	2.205
internal toothed
92-20 0311/0-37202	16.457	8.35	2.205
92-20-0413/0-37212	20.394	12.85	2.205
92-20-0541/0-37222	25.512	17.6	2.205
92-20-0641/0-37232	29.449	21.6	2.205
92-20-07410-37242	33.396	25.6	2.205
92-20-0841/0-37252	37.232	29.133	2.205
92-20-0941/0-37262	41.26	33.133	2.205
92-20-1091/0-37272	47.165	39.133	2.205