Slewing Bearing 191.25.1800.990 Slewing Ring Bearing for Portal Crane (191.20.2000.990)

• Standard or Nonstandard: Standard
• Feature: Corrosion-Resistant
• Sealing Gland: Sealed On Both Sides
• Rolling-Element Number: Multiple-Column
• Roller Type: Deep Groove Raceway
• Material: 50mn, 42CrMo, S48c
• Model NO.: 191.20.2000.990
• Type: Internal Gear
• Brand: Lyhy
• Custom Design: Available
• Company History: Bearing Manufacturer Since 1993
• Size: Largest Diameter Can Reach 12m
• Transport Package: Wooden Box
• Specification: ISO9001: 2008
• Trademark: LYHY
• Origin: China
• HS Code: 848210900
• Production Capacity: 5000PCS / Year

Product Description

Production Description for Slewing Bearing, ring bearing, rolling bearings, turntables

1. Type: Three row roller slewing bearing
2. Material: 42CrMo, 50Mn
3. Precision: P0. P6. P5.
4. Bore diameter: 1853mm
5. Outside diameter2044.8mm
6. Height: 132mm
7. Cage/retainer: Nylon or aluminum
8. Gear type: External gear
9. N. W. 844kgs

Specifications for 191.20.2000.990 /191.25.1800.990slewing bearing, slewing ring bearing, ring bearing, roller bearings



 

Triple Row Roller Slewing Bearing--Bearing with external gear
191.20.1250.990.41.1502	191.20.1400.990.41.1502	191.20.1600.990.41.1502
191.20.1800.990.41.1502	191.20.2000.990.41.1502	191.25.1800.990.41.1502
191.25.2000.990.41.1502	191.25.2240.990.41.1502	191.25.2500.990.41.1502
191.25.2800.990.41.1502	191.32.2240.990.41.1502	191.32.2500.990.41.1502
191.32.2800.990.41.1502	191.32.3150.990.41.1502	191.32.3550.990.41.1502
191.32.4000.990.41.1502	191.40.2800.990.41.1502	191.40.3150.990.41.1502
191.40.3550.990.41.1502	191.40.4000.990.41.1502	191.40.4500.990.41.1502
191.50.3150.990.41.1502	191.50.3550.990.41.1502	191.50.4000.990.41.1502
191.50.4500.990.41.1502	191.50.5000.990.41.1502	191.50.5600.990.41.1502
191.50.6300.990.41.1502
Triple Row Roller Slewing Bearing--Bearing with internal gear
192.20.1250.990.41.1502	192.20.1400.990.41.1502	192.20.1600.990.41.1502
192.20.1800.990.41.1502	192.20.2000.990.41.1502	192.25.1800.990.41.1502
192.25.2000.990.41.1502	192.25.2240.990.41.1502	192.25.2500.990.41.1502
192.25.2800.990.41.1502	192.32.2240.990.41.1502	192.32.2500.990.41.1502
192.32.2800.990.41.1502	192.32.3150.990.41.1502	192.32.3550.990.41.1502
192.32.4000.990.41.1502	192.40.2800.990.41.1502	192.40.3150.990.41.1502
192.40.3550.990.41.1502	192.40.4000.990.41.1502	192.40.4500.990.41.1502
192.50.3150.990.41.1502	192.50.3550.990.41.1502	192.50.4000.990.41.1502
192.50.4500.990.41.1502	192.50.5000.990.41.1502	192.50.5600.990.41.1502
192.50.6300.990.41.1502	192.50.6735.990.41.1502

 Introduction of LYHY slewing bearings
LYHY bearings are a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer's different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing.
Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing rings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;
On the other hand, slewing bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.
LYHY slewing ring bearings are usually used for low revolution while shaking and strained with an enormous axial force, moment and in some parts with radial force simultaneously.
Consequently the requirements for loading are stricter than ordinary bearings. If the selection of the slewing ring bearing has been wrong it will cause a great damage. Hence it is necessary to evaluate the exact forces acting on the slewing ring bearing and to select the suitable slewing ring bearings.


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.




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.


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.