JinHang Precision Bearing Co.,Ltd

China bearing manufacture with 16 Years experience.All the bearing quality will be guaranteed!

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230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

Here thanks for help. We had got the bearing and checked them. After the working,they are working perfect. I will be keep you in mind !

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230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

China 230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle supplier
230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle supplier 230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle supplier 230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle supplier 230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle supplier

Large Image :  230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

Product Details:

Place of Origin: China
Brand Name: JHB or your required
Certification: ISO9001:2008 or quality certificate
Model Number: 230.20.0400.503

Payment & Shipping Terms:

Minimum Order Quantity: 2PCS
Price: 1-1000USD/negotiation
Packaging Details: Carton or standard export wooden case
Delivery Time: 35 days
Payment Terms: T/T,L/C, Western Union
Supply Ability: 1000 pcs/month
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Detailed Product Description
Precision Rating: P0 P6 P5 Seals Type: Double Sealed
Material: 42CrMo 50Mn Inner Dia: 304mm
Outer Dia: 518mm Height: 56mm

230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

 

230.20.0400.503 Single row four-point contact ball slewing bearings
230.20.0400.503 Slewing bearing with internal gear ,518x304x56 mm, JBT10471 quality Standard
Dimensions - d (inside diameter) 304 mm
Dimensions - D (outside diameter) 518 mm
Dimensions - B (width) 56 mm

   

230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

 

 

 

Description 230.20.0400.503 slewing bearing
Bearing type

230.20.0400.503 slewing ring

230.20.0400.503 turntable bearing

230.20.0400.503 four point contact ball slewing bearing

Dimension(ODXIDXH) 518x304x56 mm
Outer diameter(OD) 518 mm
Inner diameter(ID) 304 mm
Width/Height/(H) 56mm
Material 42CrMo,42CrMo4V,50Mn
Rolling ball
Package Inside package: plastic film + kraft paper + blue tape; Outside package: standard export free-fumigation wooden case.
The delivery time 20-30 days
Service Technology communicate with engineer, and if you need the assembly drawing,we can send to you
HS code 8522901000
Certificate Fore A Fore E ,OA Available
Seaport name Shanghai Qingdao Tianjin available
Sealing Double seal
Warranty 2 years

  

 

Heat treatment
3.1 Raceway surface quenching: The bearing raceway surface is quenched at medium frequency, the hardness is not less than 55HRC, the depth of the hardened layer is not less than 4mm, the width of the soft belt is less than 50mm, and the "S" mark is marked accordingly. (Sometimes customers can request carburizing, nitriding, carbonitriding, etc.)
3.2 Tempering after heat treatment: After the intermediate frequency quenching of the inner and outer rings of the bearing, it is required to be exposed to 200C degrees for 48 hours before being baked. To ensure that internal stresses disappear.
Rolling and milling processing—4.1 For turntable bearings with internal and external teeth, the grinding and milling teeth must be carried out before the grinding process, and they must be processed in strict accordance with the technological requirements, with an accuracy level of 8 or more.
5) Drilling—
5.1 Scribing: After measuring the external dimensions of the part, carry out the scribing and positioning procedures according to the dimensions specified in the drawing. The holes should not differ from each other by more than 3%.
5.2 Drilling: Check the scribe line size according to the drawing, and then perform the drilling process after ensuring that the dimensions are correct. The inner sleeve turntable bearing mounting holes should be combined and processed, and the error between the holes at 180C degrees between the soft belts should not be greater than 5%.
06) Grinding
6.1 Coarse grinding: Use medium corundum and soft three-grained granularity of 36 degrees and atmospheric hole resin grinding wheels for grinding. The line speed is controlled at 1500 rpm to prevent raceway burns. The maximum grinding depth must not exceed 1 mm.
6.2 Fine grinding: Use resin wheel grinding with a granularity of 46 degrees or 60 degrees, the grinding amount should be less than that of rough grinding, and the finish must reach the level specified in the drawing

 

Slewing bearing type Outer diameter(mm) Inner Diameter(mm) Height(mm)
230.20.0400.503
Typ 21/520.0
518 304 56
230.20.0500.503
Typ 21/650.0
648 434 56
230.20.0600.503
Typ 21/750.0
748 534 56
230.20.0700.503
Typ 21/850.0
848 634 56
230.20.0800.503
Typ 21/950.0
948 734 56
230.20.0900.503
Typ 21/1050.0
1048 834 56
230.20.1000.503
Typ 21/1200.0
1198 984 56

 

 
Generally, only the raceways in the rings are hardened and precision- ground. Integral seals  made of acrylonitrile- butadiene rubber (NBR) keep the lubricant in, and contaminants out of the bearing.

230.20.0400.503 Slewing bearings perform extremely well in a variety of applications such as:

• bucket wheel excavators
• conveyor booms
• cranes of all types
• small, medium and large excavators
• indexing tables
• ladle turrets
• offshore applications
• robots
• railway bogies
• rotary platforms
• stackers
• solar mirrors
• tunnel boring machines
• wind turbines

 

230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle

230.20.0400.503 slewing bearing 518x304x56 mm without teeth for material handle


   Slewing bearing is one of our main products.
1. four point contact ball slewing bearing (no gear, external gear, internal gear);
2. two row ball slewing bearing (no gear, external gear, internal gear);
3. crossed cylindrical roller slewing bearing;(no gear, external gear, internal gear);
4. three row cylindrical roller slewing bearing;(no gear, external gear, internal gear);
5. crossed tapered roller slewing bearing; (no gear, external gear, internal gear);
6. ball and roller combined slewing bearing.(no gear, external gear, internal gear);

Contact Details
JinHang Precision Bearing Co.,Ltd

Contact Person: Mrs. Jean Yang

Tel: 86--18037970383

Fax: 86-379-65199160

Send your inquiry directly to us (0 / 3000)