Slewing Ring Beairngs with Flange with External Teeth for Steel Mill Rks. 21 0941

• Standard or Nonstandard: Standard
• Feature: High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
• Sealing Gland: Sealed On Both Sides
• Rolling-Element Number: Single-Row
• Roller Type: Deep Groove Raceway
• Material: 50mn 42CrMo
• Model NO.: RKS. 21 0941
• Type: External Gear
• Transport Package: Wooden Box
• Specification: ISO9001: 2008
• Trademark: LYHY
• Origin: China
• HS Code: 8482109000
• Production Capacity: 5000PCS

Product Description

LYHY is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball slewing ring bearings, roller slewing bearings and precision slewing ring bearings as per customer's different technical requirements.

Slewing ring bearing is also called slewing ring, slewing 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 ring bearings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;




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.



On the other hand, slewing ring bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.




Slewing Ring Bearings------Types:
1.       four point contact ball slewing ring bearings
2.       double row ball four point contact slewing ring bearings(same diameter ball; different diameter ball)
3.       cross roller slewing ring bearings
4.       triple row cylindrical roller combined slewing ring bearings
5.       ball roller combined slewing ring bearings
6.       light flanged slewing ring bearings


Slewing Ring Bearings------Technical Data:
1.       Material: 42CrMo, 50Mn
2.       Precision: P0. P6. P5.
3.       Outside diameter: 200~9500mm
4.       Cage/retainer: Nylon or aluminum
5.       Gear type: non-geared, internal gear and external gear, gear hardened


Slewing Ring Bearings------Applications:
Slewing ring bearings are widely used in industry and known as "the machine joints"
Hereunder 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 equipments (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 equipments (e.g. paper machine, plastic, rubber machine, weave machine)
6. Wind power generator
7. Packing machinery






Slewing Ring Bearings------Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,



Our Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Manufacturing slewing ring bearings since 1993

Slewing bearing------Surface treatment:
1: black surface treatment
2: Surface sandblasting and painting
3: Surface chrome plating
4: Surface spray zinc treatment
5: Surface phosphating treatment
6: Dacromet treatment



Slewing Ring- Seal 
The sealing of slewing bearing is mainly to prevent the filled grease from leaking out, and also to prevent external dust, impurities and moisture from entering the inside of the bearing and affecting the normal operation of the bearing.

Since most of the slewing bearings work under heavy loads and low speeds, the sealing form of the bearings adopts two structures: rubber seal ring seal and labyrinth seal. The rubber sealing ring itself has a simple structure, small space occupation and reliable sealing performance. The disadvantage is that it is prone to early aging under high temperature conditions and loss of airtightness. Therefore, under high temperature conditions, the slewing bearing should adopt a labyrinth seal. In addition, the material of the sealing ring under high temperature is high temperature resistant fluoro rubber.



Slewing ring bearing- Maintain
1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation .

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.


LYHY Slewing bearing models:

Slewing Bearing--Bearing with external gear
RKS.061.20.0414	RKS.061.20.0544	RKS.061.20.0644
RKS.061.20.0744	RKS.061.20.0844	RKS.061.20.0944
RKS.061.20.1094	RKS.061.25.1204	RKS.061.25.1314
RKS.061.25.1424	RKS.061.25.1534	RKS.061.25.1644
RKS.061.25.1754	RKS.061.30.1904
Slewing Bearing--Bearing with internal gear
RKS.062.20.0414	RKS.062.20.0544	RKS.062.20.0644
RKS.062.20.0744	RKS.062.20.0844	RKS.062.20.0944
RKS.062.20.1094	RKS.062.25.1204	RKS.062.25.1314
RKS.062.25.1424	RKS.062.25.1534	RKS.062.25.1644
RKS.062.25.1754	RKS.062.30.1904
Slewing Bearing--Bearing without gear
RKS.060.20.0414	RKS.060.20.0544	RKS.060.20.0644
RKS.060.20.0744	RKS.060.20.0844	RKS.060.20.0944
RKS.060.20.1094	RKS.060.25.1204	RKS.060.25.1314
RKS.060.25.1424	RKS.060.25.1534	RKS.060.25.1644
RKS.060.25.1754	RKS.060.30.1904

 

Cross Roller Slewing Bearing--Bearing with external gear
RKS.161.14.0414	RKS.161.14.0544	RKS.161.14.0644
RKS.161.14.0744	RKS.161.14.0844	RKS.161.14.0944
RKS.161.14.1094	RKS.161.16.1204	RKS.161.16.1314
RKS.161.16.1424	RKS.161.16.1534	RKS.161.16.1644
RKS.161.16.1754	RKS.161.20.1904
Cross Roller Slewing Bearing--Bearing with internal gear
RKS.162.14.0414	RKS.162.14.0544	RKS.162.14.0644
RKS.162.14.0744	RKS.162.14.0844	RKS.162.14.0944
RKS.162.14.1094	RKS.162.16.1204	RKS.162.16.1314
RKS.162.16.1424	RKS.162.16.1534	RKS.162.16.1644
RKS.162.16.1754	RKS.162.20.1904
Cross Roller Slewing Bearing--Bearing without gear
RKS.160.14.0414	RKS.160.14.0544	RKS.160.14.0644
RKS.160.14.0744	RKS.160.14.0844	RKS.160.14.0944
RKS.160.14.1094	RKS.160.16.1204	RKS.160.16.1314
RKS.160.16.1424	RKS.160.16.1534	RKS.160.16.1644
RKS.160.16.1754	RKS.160.20.1904

Light slewing bearings with flange:

RKS.21 0411, RKS.21 0541, RKS.21 0641,
RKS.21 0741, RKS.21 0841, RKS.21 0941,
RKS.21 1091,

RKS.23 0411, RKS.23 0541, RKS.23 0641,
RKS.23 0741, RKS.23 0841, RKS.23 0941,
RKS.23 1091,

RKS.22 0411, RKS.22 0541, RKS.22 0641,
RKS.22 0741, RKS.22 0841, RKS.22 0941,
RKS.22 1091,   

Other slewing bearing models:

RKS.204040101001,RKS.302070202001,RKS.900155101001,
RKS.951145101001,RKS.901175101001,RKS.921150303001,
RKS.121400101002,RKS.121390101002,RKS.122290101002,
RKS.221310101001,RKS.222500101001,RKS.221300101001,
RKS.222600101001,RKS.324012324001,RKS.322300101001,
RKS.425060101001,RKS.425060201001,RKS.425062621001,
RKS.427020101001,RKS.427050403001,

RKS.111280101002,RKS.212140106001,RKS.211430101001,
RKS.211440101001,RKS.212600101001,RKS.312410101001,
RKS.312410102001,RKS.312290202001,RKS.313500404001,
RKS.314310101001,RKS.413290203001,RKS.512080101001,
RKS.921155203001,RKS.121405101002,RKS.121395101002,
RKS.122295101002,RKS.223475101001,RKS.222605101001

RKS.061.20.0414, RKS.061.20.0544, RKS.061.20.0644,
RKS.061.20.0744, RKS.061.20.0844, RKS.061.20.0944,
RKS.061.20.1094, RKS.061.25.1204, RKS.061.25.1314,
RKS.061.25.1424, RKS.061.25.1534, RKS.061.25.1644,
RKS.061.25.1754, RKS.061.30.1904,

RKS.062.20.0414, RKS.062.20.0544, RKS.062.20.0644,
RKS.062.20.0744, RKS.062.20.0844, RKS.062.20.0944,
RKS.062.20.1094, RKS.062.25.1204, RKS.062.25.1314,
RKS.062.25.1424, RKS.062.25.1534, RKS.062.25.1644,
RKS.062.25.1754, RKS.062.30.1904,

RKS.060.20.0414, RKS.060.20.0544, RKS.060.20.0644,
RKS.060.20.0744, RKS.060.20.0844, RKS.060.20.0944,
RKS.060.20.1094, RKS.060.25.1204, RKS.060.25.1314,
RKS.060.25.1424, RKS.060.25.1534, RKS.060.25.1644,
RKS.060.25.1754, RKS.060.30.1904,

RKS.161.14.0414, RKS.161.14.0544, RKS.161.14.0644,
RKS.161.14.0744, RKS.161.14.0844, RKS.161.14.0944,
RKS.161.14.1094, RKS.161.16.1204, RKS.161.16.1314,
RKS.161.16.1424, RKS.161.16.1534, RKS.161.16.1644,
RKS.161.16.1754, RKS.161.20.1904,

RKS.162.14.0414, RKS.162.14.0544, RKS.162.14.0644,
RKS.162.14.0744, RKS.162.14.0844, RKS.162.14.0944,
RKS.162.14.1094, RKS.162.16.1204, RKS.162.16.1314,
RKS.162.16.1424, RKS.162.16.1534, RKS.162.16.1644,
RKS.162.16.1754, RKS.162.20.1904,

RKS.160.14.0414, RKS.160.14.0544, RKS.160.14.0644,
RKS.160.14.0744, RKS.160.14.0844, RKS.160.14.0944,
RKS.160.14.1094, RKS.160.16.1204, RKS.160.16.1314,
RKS.160.16.1424, RKS.160.16.1534, RKS.160.16.1644,  
RKS.160.16.1754, RKS.160.20.1904,