32-32 3150/2-07390 Internal Gear Slewing Ring Bearing 32-50 4750/2-07595 Rolling Bearing

• Customization: Available
• Standard or Nonstandard: Standard
• Sealing Gland: Sealed On Both Sides
• Model NO.: 32-32 3550/2-07400
• Rolling-Element Number: Single-Row
• Roller Type: Triple Row Roller
• Material: 50mn or 42CrMo
• Type: Internal Gear
• Brand: Lyhy
• Custom Design: Available
• Company History: Since Year 1993
• Delivery Time: 45-50days
• Testing: in House or Third Party
• Warranty: 12months Against Bl
• 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

Triple Row Roller Slewing Bearing

Structure: It usually consists of three rows of raceways with steel rollers as the rolling elements, and it has a double - inner - ring (or double - outer - ring) and a single - outer - ring (or single - inner - ring) structure, along with components like retainers and seals.
 

Materials: The ring materials are typically 42CrMo for large diameter while 50Mn for small diameter. These materials, through advanced metallurgical techniques and specialized heat treatment processes, possess excellent hardness, wear resistance, and fatigue strength.  

Ring hardness: HB280-352

Application: heavy construction machinery, wind turbine ,steel plant, shield machines and other heavy equipment.

 

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: (60)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: urkey, 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

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.

 

single row ball slewing ring bearing
untoothed	external toothed	internal toothed
10-16 0100/0-08000	11-16 0100/1-08100
10-16 0200/0-08010	11-16 0200/1-08110
10-16 0300/0-08020	11-16 0300/1-08120
10-16 0400/0-08030	11-16 0400/1-08130
10-16 0500/0-08040	11-16 0500/1-08140
10-16 0100/0-08003	11-16 0100/1-08103
10-16 0200/0-08013	11-16 0200/1-08113
10-16 0300/0-08023	11-16 0300/1-08123
10-16 0400/0-08033	11-16 0400/1-08133
10-16 0500/0-08043	11-16 0500/1-08143
10-20 0311/0-02002	11-20 0311/1-02102	12-20 0311/1-02202
10-20 0411/0-02012	11-20 0411/1-02112	12-20 0411/1-02212
10-20 0541/0-02022	11-20 0541/1-01222	12-20 0541/1-02222
10-20 0641/0-02032	11-20 0641/1-02132	12-20 0641/1-02232
10-20 0741/0-02042	11-20 0741/1-02142	12-20 0741/1-02242
10-20 0841/0-02052	11-20 0841/1-02152	12-20 0841/1-02252
10-20 0941/0-02062	11-20 0941/1-02162	12-20 0941/1-02262
10-20 1091/0-02072	11-20 1091/1-02172	12-20 1091/1-02272
10-20 0311/0-02003	11-20 0311/1-02103	12-20 0311/1-02203
10-20 0411/0-02013	11-20 0411/1-02113	12-20 0411/1-02213
10-20 0541/0-02023	11-20 0541/1-01223	12-20 0541/1-02223
10-20 0641/0-02033	11-20 0641/1-02133	12-20 0641/1-02233
10-20 0741/0-02043	11-20 0741/1-02143	12-20 0741/1-02243
10-20 0841/0-02053	11-20 0841/1-02153	12-20 0841/1-02253
10-20 0941/0-02063	11-20 0941/1-02163	12-20 0941/1-02263
10-20 1091/0-02073	11-20 1091/1-02173	12-20 1091/1-02273
10-25 0455/0-04010	11-25 0455/1-04110	12-25 0455/1-04210
10-25 0555/0-04020	11-25 0555/1-04120	12-25 0555/1-04220
10-25 0655/0-04030	11-25 0655/1-04130	12-25 0655/1-04230
10-25 0755/0-04040	11-25 0755/1-04140	12-25 0755/1-04240
10-25 0855/0-03010	11-25 0855/1-03110	12-25 0855/1-03210
10-25 0955/0-03020	11-25 0955/1-03120	12-25 0955/1-03220
10-25 1055/0-03030	11-25 1055/1-03130	12-25 1055/1-03230
10-25 1155/0-03040	11-25 1155/1-03140	12-25 1155/1-03240
10-25 1255/0-03050	11-25 1255/1-03150	12-25 1255/1-03250
10-25 1355/0-03060	11-25 1355/1-03160	12-25 1355/1-03260
10-25 1455/0-03070	11-25 1455/1-03170	12-25 1455/1-03270
10-12 0120/0-03659	11-50 1900/2-06400	12-50 1800/2-06500
10-16 0179/0-06672	11-50 2130/2-06410	12-50 2000/2-06510
10-20 0222/0-03351	11-50 2355/2-06420	12-50 2240/2-06520
10-12 0222/0-02710	11-50 2645/2-06430	12-50 2490/2-06530
10-20 0260/0-02448	11-16 0188/2-01707	12-50 2800/2-06540
10-22 0308/0-00270	11-16 0235/1-01933	12-16 0288/1-00306
10-16 0325/0-03997	11-25 0309/1-03312	12-16 0344/2-01873
10-25 0371/0-00181	11-25 0537/1-05677	12-16 0420/1-00728
10-25 0380/0-03908	11-22 0635/2-03924	12-22 0782/2-01218
10-22 0404/0-04475	11-32 0675/2-03771	12-22 0850/2-01501
10-32 0474/0-03498	11-25 0693/2-04976	12-25 08892/2-04951
10-32 0550/0-05642	11-25 0716/1-04864	12-32 1128/2-04945
10-32 0574/0-05823	11-32 0823/2-02613	12-22 1131/2-01601
10-32 0675/0-05584	11-32 0957/2-05549	12-32 1159/2-01512
10-32 0680/0-00928	41-20 0969/2-05532	12-32 1384/2-04719
10-32 0780/0-00367	41-32 1160/2-00991	12-32 1400/2-04953
	11-40 1298/2-00767	12-32 1582/2-04505
	11-32 1600/1-02300
	11-25 1845/1-03705

 

triple row roller slewing ring bearing
external toothed	internal toothed
31-20 1250/2-06700	32-20 1250/2-06750
31-20 1400/2-06710	32-20 1400/2-06760
31-20 1600/2-06720	32-20 1600/2-06770
31-20 1800/2-06730	32-20 1800/2-06780
31-20 2000/2-06740	32-20 2000/2-06790
31-25 1800/2-06800	32-25 1800/2-06850
31-25 2000/2-06810	32-25 2000/2-06860
31-25 2240/2-06820	32-25 2240/2-06870
31-25 2500/2-06830	32-25 2500/2-06880
31-25 2800/2-06840	32-25 2800/2-06890
31-32 2240/2-07300	32-32 2240/2-07360
31-32 2500/2-07310	32-32 2500/2-07370
31-32 2800/2-07320	32-32 2800/2-07380
31-32 3150/2-07330	32-32 3150/2-07390
31-32 3550/2-07340	32-32 3550/2-07400
31-32 4000/2-07350	32-32 4000/2-07410
31-40 2800/2-07420	32-40 2800/2-07470
31-40 3150/2-07430	32-40 3150/2-07480
31-40 3550/2-07440	32-40 3550/2-07490
31-40 4000/2-07450	32-40 4000/2-07500
31-40 4500/2-07460	32-40 4500/2-07510
31-50 3150/2-07520	32-50 3150/2-07560
31-50 3550/2-07530	32-50 3550/2-07570
31-50 4000/2-07540	32-50 4000/2-07580
31-50 4500/2-07550	32-50 4500/2-07590
31-50 4750/2-07555	32-50 4750/2-07595

double row axial ball slewing ring bearing		ball roller combination slewing ring
external toothed	internal toothed	external toothed
81-40 2240/2-07600	82-40 2199/2-07625	51-32 3550/2-06900
81-40 2619/2-07605	82-40 2622/2-07630	51-32 3750/2-06905
81-40 2795/2-07610	82-40 2950/2-07635	51-32 4000/2-06910
81-40 2915/2-07615	82-40 3300/2-07640	51-32 4250/2-06915
81-40 3150/2-07620	82-50 2559/2-06970	51-40 4250/2-06920
81-50 2987/2-06940	82-50 3040/2-06975	51-40 4500/2-06925
81-50 3167/2-06945	82-50 3520/2-06980	51-40 4750/2-06930
81-50 3347/2-06950	82-50 3839/2-06985	51-40 4900/2-06935
81-50 3567/2-06955
81-50 3747/2-06960
81-50 4140/2-06965

Production Process of LYHY slewing bearings


Quality Control Process of LYHY slewing bearings


 

Receiving Inspection(forging inspection)

• Inspect the Raw Materials: Check the quality certificates of the raw materials such as steel plates and forgings to ensure that they meet the specified requirements. Examine the surface quality of the materials for any defects like cracks, scars, or pits. Conduct chemical composition analysis and mechanical property tests on the raw materials to verify their compliance with the standards.
• Verify the Dimensions: Measure the key dimensions of the raw materials, such as the diameter, thickness, and length, to ensure they are within the allowable tolerance range. Use measuring tools like calipers, micrometers, and laser trackers for accurate measurement.

 

In - process Inspection

• Inspect the Machining Process: During the machining of the slewing bearing, check the accuracy of each process, including turning, milling, drilling, and grinding. Ensure that the surface roughness, dimensional accuracy, and geometric tolerance of the parts meet the design requirements. Regularly measure the dimensions of the work - in - process and compare them with the process drawings to detect any deviations in a timely manner.
• Check the Heat Treatment: Monitor the heat treatment process to ensure that the slewing bearing components obtain the required mechanical properties. Check the temperature, time, and cooling rate during heat treatment to ensure they are in accordance with the process regulations. Perform hardness tests and microstructure analysis on the heat - treated parts to verify the effectiveness of the heat treatment.
• Inspect the Welding Quality: For slewing bearings with welded structures, check the welding process parameters, such as welding current, voltage, and welding speed. Inspect the weld appearance for any defects like cracks, pores, and incomplete penetration. Use non - destructive testing methods such as ultrasonic testing, radiographic testing, and magnetic particle testing to detect internal welding defects.

Final Inspection

• Visual Inspection: Examine the surface of the slewing bearing for any scratches, burrs, or paint defects. Check the overall appearance of the bearing to ensure that it meets the aesthetic requirements. Inspect the assembly quality, including the installation of seals, lubrication systems, and retaining rings, to ensure they are properly installed.
• Dimensional Inspection: Measure all the key dimensions of the slewing bearing, including the outer diameter, inner diameter, width, and gear dimensions. Ensure that the dimensions are within the specified tolerance range. Use precision measuring instruments to perform comprehensive dimensional verification.
• Functional Testing: Conduct rotational tests to check the smoothness of the slewing bearing's rotation and measure the friction torque. Test the load - carrying capacity of the bearing according to the specified requirements to ensure that it can withstand the designed load. Check the sealing performance of the bearing to prevent oil leakage and dust ingress.
• Packaging Inspection: Inspect the packaging of the slewing bearing to ensure that it is suitable for transportation and storage. Check if the packaging materials, such as wooden cases and protective films, can effectively protect the bearing from damage. Verify that the packaging is labeled with the correct product information, including the model, specification, and batch number.

 

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.