Find Verified Four Point Contact Ball Slewing Bearing Suppliers, Manufacturers and Wholesalers

Rks series slewing bearing
1. Rks-four point contact ball slewing ring bearing-external gear
2. Rks-four point contact ball slewing ring bearing- internal gear
3. Rks-four point contact ball slewing ring bearing- without gear
4. Rks-cross roller slewing ring bearing-external gear
5. Rks-cross roller slewing ring bearing- internal gear
6. Rks-cross roller slewing ring bearing- without gear
7. Rks-l-shape slewing ring bearing-external gear
8. Rks-l-shape slewing ring bearing- internal gear
9. Rks-l-shape slewing ring bearing- without gear
10. Rks-other slewing ring bearing designation list z

We forged ourselves.
Total 6 times heat treatment from the materials to the finished products.

Single-row four point contact slewing bearing - external gear

Main technical specifications:

Model no.: 011.40.900
Brand: fenghe
No. Of rows: single row
Inner structure: ball
Gear option: external gear
No. Of mounting holes: 30
Internal diameter: 778mm
Outside diameter: 1022mm
No. Of gear: 130
Thickness: 100mm
Weight: 240kg

Slewing bearing can simultaneously support larger combined load including axial load, radial load and tilting moment etc. General slewing bearing all has mounting holes, oil holes and sealing apparatus, can meet categories of main machine operating under various different conditions. In addition, slewing bearing possess the characteristics of compact structure, guiding rotation convenient, easy installation and easy to maintenance, and widely applied to large size slewing equipment in the industries of engineering, mining, metallurgy, wind power generation, vessel, seaport, petroleum, chemical industry, light industry, medical appliance, foodstuff, vehicle, robot, aerospace, radar and war industry etc.

According to different structural style, slewing bearing can be divided into four point contact ball slewing bearing, cross cylindrical (taper) roller slewing bearing, double row four point ball slewing bearing, double row different diameter ball slewing bearing, ball and roller combined slewing bearing and tri-row cylindrical roller combined slewing bearing etc. Above mentioned slewing bearings can also be divided into different structures of no gear type, external gear type and internal gear type as per if exist gear and gear teeth distributing position.

According to different structural feature, slewing bearing can respectively meet main machine requirements under various load conditions. Among them, four point contact ball slewing bearing has higher dynamic load capacity, cross cylindrical roller slewing bearing has higher static load capacity. Tri-row cylindrical roller combined slewing bearing is a kind of high carrying capacity slewing bearing, due to leading raised carrying capacity to direction of bearing height, various loads can be respectively supported by different raceways and roller sets, so raceway diameter greatly decrease under the same stress condition, it has the character of making main machine more compact.

Zsj standard packing

a professional manufacturer of slewing bearings,extra large bearings,non-standard slewing bearings and wind power slewing bearings,rolling mill slewing bearings and etc.We can offer such series of slewing bearings with diamaters from 100mm to 22000mm and accuracy class of P0.P6 and P5.Wehave achieved ISO:9001:2008 Certification and began to export large turntable bearings in 2003,which are feavoured by our customers.

Bearing Series
Four-point Contact Ball Slewing Bearing

Cross Roller Slewing Bearing

Three-Row Roller Slewing Bearing

Material 50Mn,42CrMo
Outside Diamater 100mm-10000mm
Brand Name LYJW
Gear Type Internal Gear,External Gear And No Gear
Rolling Element Ball or Roller
Certificate ISO9001:2008,ABS,DNV,BV

Four-point contact ball bearings

single row four point contact ball slewing rings is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four points; it can bear the axial force, radial force and the tilting moment at the same time.Single-row four point contact ball ring has the features of compact in design, and light in weight. The balls roll on the circular race at four points, so it can undertake the axial force, radial force and tipping moment at the same time.
This series of four point contact ball bearings are suitable in many engineering machinery, such as rotary conveyor welding operation machine, small cranes, small and medium-sized excavators,slewing conveyer, welding manipulator, light and medium duty crane, and other construction machinery
Three types of this kind of single row four point contact ball slewing bearing:
A. Without gear bearing (non tooth)
B. External gear bearing (external tooth)
C. Internal gear bearing (internal tooth)

We have been specialized in manufacturing slewing bearings, spherical roller bearings, taper roller bearings, deep groove ball bearing, and other bearings since 2000.

1) slewing bearings:
1.Single-row four-point contact ball slewing bearing
2.Double-row ball slewing bearing
3.Single-row crossed roller slewing bearing
4.Three-row roller slewing bearing
5.Trailer turntable
6.Light flanged slewing bearing

2) specification:
Diameter: 200mm~6000 mm (8"~ 240")
Standard outer diameters: 480mm~5000mm (18"~196")
Load capacity:
Maximum thrust: 105, 060 kn (23, 630, 000 lbs)
Maximum moment: 110, 000 kn-m (81, 136, 000 ft-lbs)

3) application:
Construction machinery (e.G. Cranes, excavators, loader, scraper)
Metallurgical machinery (e.G. For steel plant)
Heavy machinery equipments (e.G. Mining machinery, concrete machinery)
Marine machinery equipment (e.G. Vessel, port hoisting machine, port oil transfer equipment, onshore and offshore crane)
Light machinery equipments (e.G. Paper machine, plastic, rubber machine, weave machine)
Wind power generator
Military products (e.G. Aerospace machinery)
Packing machinery



Inner dameter more than 200mm

Thin ball bearing


Standard export packing & tube in carton or wooden box, single box.

a professional manufacturer of slewing bearings,extra large bearings,non-standard slewing bearings and wind power slewing bearings,rolling mill slewing bearings and etc.We can offer such series of slewing bearings with diamaters from 100mm to 22000mm and accuracy class of P0.P6 and P5.Wehave achieved ISO:9001:2008 Certification and began to export large turntable bearings in 2003,which are feavoured by our customers.

Bearing Series
Four-point Contact Ball Slewing Bearing

Cross Roller Slewing Bearing

Three-Row Roller Slewing Bearing

Material 50Mn,42CrMo
Outside Diamater 100mm-10000mm

Gear Type Internal Gear,External Gear And No Gear
Rolling Element Ball or Roller
Certificate ISO9001:2008,ABS,DNV,BV

Part name: single-row 4 point contact ball slewing bearing;
Part no.: 06.70.4195.000.41.1422;
O.D. = 4464mm;
I.D. = 4000mm;
T = 246mm;
Module: 18;
Nos of teeth: 246.
Total weight: 2800kg

Packaging: free-fumigation wooden pallet;
Dimension: 4850x4850x500mm

China factory supply CX290B excavator parts slewing bearing replacement
Material:42CrMo/50Mn
Structure:Internal gear four point contact slewing ball bearing
Hardness:55~62HRC
Inner and outer ring modulation hardness:229-269HB
Operating temperature:-40â??-+150â??
Outer ring diameter(OD):1600mm
Inner ring diamter(ID):1500mm
Total height(H):200mm
Teeth no(Z).:92
Warranty:1 year
Application: case excavator
More types case excavator slewing bearing we manufacture:
CX130, CX210, CX210B, CX240, CX240B, CX460.
if you have needs of excavator slewing bearing, please contact us freely.

China factory supply EX700 excavator parts slewing bearing replacement
Material:42CrMo/50Mn
Structure:Internal gear four point contact slewing ball bearing
Hardness:55~62HRC
Inner and outer ring modulation hardness:229-269HB
Operating temperature:-40â??-+150â??
Outer ring diameter(OD):1900mm
Inner ring diamter(ID):1500mm
Total height(H):160mm
Teeth no(Z).:108
Warranty:1 year
Application: hitachi excavator
More types hitachi excavator slewing bearing we manufacture:
EX60-1, EX60-2, EX60-3, EX60-5, EX70-5, ZAX60, ZAX70, ZAX80, EX90, EX100-1, EX120-1, EX110-5, EX120-2, EX120-3, EX120-5, EX130-5, ZAX110, ZAX120, ZAX130, UH063, UH07-7, EX200-1, EX200-2, EX200-5, EX210-5, ZAX200-3, ZAX200, ZAX210, ZAX200-6, ZAX230, ZAX240, ZAX220-5, ZAX270, EX300-1, EX300-2, EX300-3, EX350, ZAX330, EX330-3, EX300-5, ZX650, ZAX750, EX700, EX870.
if you have needs of excavator slewing bearing, please contact us freely.

Slewing bearings are widely used in construction machinery, such as tower cranes, excavators, mobile cranes, truck-mounted concrete pumps, etc. Rothe erde slewing bearing products accompany such machines all over the world, the important things is that with the rapid development of India economy, which lead to a strong demand of various kinds of construction machinery. Rothe erde slewing bearings can totally meet the need.

Any questions about your this kind of slewing bearing, please contact us, we'd like to discuss it with you.

Designation:
1.Standard series KD 210 (single-row ball slewing rings)
Standard bearing type 21, standard number of bolt holes
(1) without gear
(2) with external gear
(3) with internal gear
Standard bearing type 21, double number of bolt holes
(1) without gear
(2) with external gear
(3) with internal gear
Standard bearing type 21, Bearing with limited clearance
(1) without gear
(2) with external gear
(3) with internal gear
Standard bearing type 110, standard bearing
(1) without gear
(2) with external gear
(3) with internal gear
Standard bearing type 110, Bearing with limited clearance
(1) without gear
(2) with external gear
(3) with internal gear
2. Standard series KD 320 (Double-row ball slewing rings)
Bearing with external gear
Bearing with internal gear
3. Standard series KD 600 (Four-point contact ball slewing rings)
Bearing without gear
Bearing with external gear
Bearing with internal gear
Standard bearing type 621, standard bearing
(1) Without gear
(2) With external gear
(3) With internal gear
Standard bearing type 621, Bearing with limited clearance
(1) Without gear
(2) With external gear
(3) With internal gear
Standard bearing type 625, standard bearing
(1) Without gear
(2) With external gear
(3) With internal gear
Standard bearing type 625, Bearing with limited clearance
(1) Without gear
(2) With external gear
(3) With internal gear
4. Standard series RD 700 (Ball and roller slewing rings)
Bearing with external gear
5. Standard series RD 800 (Cross roller slewing rings)
Bearing with external gear
Bearing with internal gear
6. Standard series RD 900 (Triple-row roller slewing rings)
Bearing with external gear
Bearing with internal gear


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Xuzhou Xinda Slewing Bearing Co., Ltd. is a professional factory for slewing ring and slewing drive. Our main
products include: single-row ball-style slewing ring; three-row column-style slewing ring; double-row four-point slewing ring; dual slewing ring; slewing drive and so on. They can be used for excavators, mobile cranes, tower cranes, rail cranes, water treatment equipments, machine tools, solar energy equipment and so on. Our main market include Europe, Middle East and Asia.

Name: Thin Section Ball Bearing NJB055XP0
Item:Rubber Sealed 5/16"(7.938mm)Cross Section Ball Bearing
Inner Diameter (ID): 139.7mm
Outer Diameter (OD): 155.575mm
Dimensions: 139.7*155.575*7.938 mm
Dynamic load rating Cr: 1.040 N
Static load rating Cor: 3,730 N
ID (inner diameter)/Bore=139.7mm
OD (outer diameter)=155.575mm
Width/Height/thickness=7.938mm
Cage: Brass
Balls: Bearing Steel
Closures: Double sealed with rubber J
Lubrication: Self Lubricated (Grease) Bearing
Equivalents: KRB055 ,KB055CP0 and CSCB055 Bearings

POM regrind black color full container available

POM plastic possesses the same priority features as other plastic polymers, some of the highlights of the special resin:

High hardness
Bearing good
Low friction number
High resistance to abrasion
High temperature resistant
Less water intake
Has anti-static ability
Dimensional stability, little change
Less smoke burns when burning
High glossy surface
High crystallization

In addition to the priority points, POM plastic also has some limited formats such as:

Quality acid resistance and alkali
High hatch rate when changing secretions
Operation mode Heat range

MATERIAL: POM regrind black color full container available
CATEGORY: POM
TYPE: Regrind
GRADE: Black color
SPECIFICATION: 1 full container available
Origin: Tunisia
LOADING WEIGHT: 23 Ton
FOB (USD/Ton): 650$ - 850$
Packaging: Jumbo Bag
Est. Shipping Time: 15, 30, 45 days

POM Regrind from zipper Teeth, industry lump, industry runner

Definition of POM resin (polyformaldehyde resin): polyformaldehyde is a linear polymer without side chain, high density and high crystalline properties. According to different chemical structures in the molecular chain, there are two types of homoformaldehyde and copolymers. of both types of polyformaldehyde density, high crystallinity, melting point, but thermal stability, the treatment temperature range is narrow (about 10oC), slightly lower in acid and alkali stability; The density of formaldehyde, melting point, strength and copolymer is lower, but good thermal stability, not easy to decompose, wide range of treatment temperature (about 50oC), acid and alkali stability are good . Plastic has excellent all-round performance. Good physical, mechanical and chemical properties, especially with excellent friction resistance. It is commonly referred to as steel or strip, which is the general engineering plastic third. Suitable for reducing wear on parts, transmitters, chemicals, tools and other parts.

One of the synthetic resins, also known as polyformaldehyde resin, POM resin and steel, etc. This is a kind of white or black plastic resin with high hardness, high steel and high wear resistance. Used for gears, bearings, auto parts, machine tools, tools, etc.

MATERIAL: POM Regrind from zipper Teeth , industry lump, industry runner
CATEGORY: POM
TYPE: Regrind
SPECIFICATION: from zipper Teeth , industry lump, industry runner,Qty per month 52 mt
Origin: Bangladesh
LOADING WEIGHT: 24 Ton
FOB (USD/Ton): 650$ - 850$
Packaging: Jumbo Bag
Est. Shipping Time: 15, 30, 45 days

o.d.:602mm
i.d.:398mm
h:80mm
precision rating:p0, p6, p5.
mass:78.5kg


standard export packaging.

2-head packaging machine (also can 4-18head according different capacity choice)
Packaging speed 15bags/min
Bag length 90-320mm
Bag width 80-210mm
Overall weight 400kg
Power 1.8kw/220v
Packaging capacity 20-1000ml
Outer packaging size 820 x1220 x 2500mm
Packaging form Back sealing
This machine is an intelligent weighing automatic quantitative packaging machine with four scales and microcomputer control. Suitable for quantitative packaging of granular materials such as miscellaneous grains, nuts ,pesticides, fertilizers, veterinary drugs, premixes, additives, laundry detergent, salt, monosodium glutamate, white sugar, seeds, rice, snacks, hardware, etc.
Performance characteristics:
1. High precision digital sensors enable precise measurement to be achieved instantly.
2. The microcomputer control system is technologically advanced, easy to operate, and more reliable to use.
3. Fast and slow vibration feeding, automatic correction of errors, achieving high-precision packaging.
4. Four scales work alternately, with fast packaging speed.
5. High quality stainless steel is used for the material contact part, which is anti-corrosion, dust-proof, and easy to clean.
Host configuration:
This machine is equipped with a dual CPU microcomputer control system, a 5-inch LCD display in Chinese or English, a user-friendly operation interface, automatic cursor detection and tracking, and simpler operation. Equipped with high-precision stepper motors to ensure the accuracy of the cutting position of each packaging bag.

WE MAY HAVE THE COAL OR PET COKE THAT YOU ARE LOOKING FOR. WE ARE CURRENTLY SHIPPING AT THIS TIME AND WELCOME AN OPPORTUNITY TO BE OF SERVICE.
PLEASE SEND US FULL SPECIFICATIONS OF WHAT YOU REQUIRE AND TARGET PRICING.
# Description Comments
1 Coking Coal Low Vol, Mid Vol and High Vol Coal
Tonnage Available 65K MT-100K MT/Month/36 Months
Delivery Port East Coast USA (Norfolk or Baltimore)

2 Thermal Coal Sulfur: <1.0%, <2.0%, <3.0%
Tonnage Available 100K MT/Month/36 Months
Delivery Port Gulf Port USA (New Orleans or Mobile)

3 Green Petroleum Coke Sulfur: <5.0%, <7.0%
Tonnage Available 55K â?? 70K/Month/36 Months
Delivery Port Gulf Port USA (Houston)


1. List of coal products required with a copy of current buyer name, contact, specifications, monthly tonnage and price point.
2. Copies of any available third-party COA data sheets. (Letâ??s determine if we can source what they are buying currently.)
3. We do not send out blind requests to potential buyers/end-burners, therefore you will not be brokers, but our Agents.
4. If we can source, we will revert with our Fixed Corporate Offer (FCO) which will be open for a limited period of time. (Usually 14 days).
5. Should Buyer wish to go to contract, we will prepare our draft document after receipt of signed/approved FCO.
6. Unless we can obtain total transparency, letâ??s not proceed with this venture.

We sell only FOBT USA PORT. However if you can provide (2) LCâ??s, (1) being for shipping and (1) being for product, we can arrange shipping. We also require the name of the Bank which will be issuing the LC. We have received far too many Broker requests that have been unrealistic and in fact, not real!

IF YOU ARE A CHINESE BUYER, WE REQUIRE A PROOF OF FUNDS FROM A US BANK TO COME FROM THE ACTUAL BUYER AND NOT A BROKER. IT MUST COME ONLY FROM THE COMPANY THAT WILL ISSUE THE LC.

Please contact us with you Target Pricing. We do not pay any commissions, but will allow whatever the issuer of the Payment Instrument allows and approves the fees/commissions to the sale price as this will part of the sale contract.
PLEASE SEND US YOUR REQURIED QUANTITIES AND TARGET PRICING.