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Home > Products > Excavator Slewing Bearing > Port Crane Bearing 010.25.500

Port Crane Bearing 010.25.500

Port Crane Bearing 010.25.500

    Terms of Trade: FOB,CIF,FCA
    Delivery Time: 70 Days
    Packaging: Standard Export Package
    Brand: NXZ
    Transportation: Ocean,Land,Air
    Place of Origin: China
    Certificate: ISO9001,ISO140001,TS16949
    HS Code: 8483300090
    Port: Yinchuan,Tianjin,Shanghai

Basic Info

Model No.: 010.25.500

Product Description

Slewing Ring Bearings

Slewing ring bearings can accommodate axial, radial and moment loads acting either singly or in combination and in any direction. So they are widely applied on engineering machinery (Mobile crane, Tower type crane, Excavator, Loader), Metallurgical Machinery, Transport Machinery, Medical instruments, etc.

The coding method of bearings

The two coding methods of Slewing Ring Bearings are as following:

1. Adopt the stipulation of JB/T2300 standard, which use raceway center circle diameter, rolling element diameter, structure type, transmission type, assembly type and mounting hole type to show the coding method of bearings.

Slewing Ring ×× ×. ××.××××. × × JB/T 2300

Mounting hole type :0.1.2.3

Assembly type:0.1.2

Raceway center circle diameter

Rolling element diameter




Transmission type:0.1.2.3.4

Structure type:01.02.11.13

a. Structure type

a.1 01---Single-row four point contact ball slewing bearings;

a.2 02---Double-row different diameter ball slewing bearings, the combination of rolling element nominal diameter is the above row/the under row: 25/20.30/25.40/30.50/40.60/50 ;

a.3 11---single-row crossed cylindrical roller Slewing Bearing, the rollers are 1:1 cross banding.

a.4 13- Three-row cylindrical roller slewing bearings, the combination of rolling element nominal diameter is the above row/the under row/radial: 25/20/16.32/25/20.40/32/25.45/32/25.50/40/25.

b. transmission type

b.1 0-without gears

b.2 1-Involutes curve cylindrical gear ext-gear joggle small modulus.

b.3 2-Involutes curve cylindrical gear ext-gear joggle big modulus.

b.4 3-Involutes curve cylindrical gear Int-gear joggle small modulus.

b.5 4-Involutes curve cylindrical gear Int-gear joggle big modulus.

c. assembly type

c.1 0-standard type without ring ridge

c.2 1-standard type with ring ridge

c.3 2-special type

d. mounting hole type

d.1 0-the mounting hole of inner ring and outer ring is through hole;

d.2 1-the mounting hole of inner ring and outer ring is tapped hole;

d.3 2-the mounting hole of inner ring is tapped hole; the mounting hole of outer ring is through hole;

d.4 3-the mounting hole of outer ring is tapped hole; the mounting hole of inner ring is through hole;

2. Adopt the stipulation of construction industry JJ36.1.JJ36.2.JJ36.3 to show the coding method of bearings.

2.1 Which use raceway center circle diameter, rolling element diameter, tolerance classes, gear modulus, mounting hole type and gear transmission type to show the coding method of bearings.

× × ×. ××××.××. × ×

Tolerance classes

Gear modulus

Steel ball nominal diameter

Raceway center circle diameter

Mounting hole type

Gear transmission type

Structure type

a. structure type

a.1 Q- Single-row ball slewing bearings

a.2 J-single-row crossed cylindrical roller slewing bearing

a.3 Z-single-row crossed tapered roller slewing bearing

a.4 S-Three-row cylindrical roller slewing bearings

b. gear transmission type

b.1 W-Ext-gear type

b.2 N-Int-gear type

b.3 U-Without gear type

c. Mounting hole type

c.1 A-the mounting holes of inner ring and outer ring are all through hole;

c.2 B-the mounting holes of inner ring and outer ring are all tapped hole;

c.3 C-the mounting hole of inner ring is tapped hole; the mounting hole of outer ring is through hole;

c.4 D-the mounting hole of outer ring is through hole; the mounting hole of inner ring is tapped hole;

d. Tolerance classes

[G" indicates the precision class, without any note is common class.

e. Gear modulus

[A" indicates the big modulus of this specification, without any note is small modulus of this specification.

2.2 The old single-row crossed roller slewing bearing which equipped on the existing machine is replaced by single-row ball HSN/HSW slewing bearing, the connect dimension and gear modulus remain unchangeable, which see in the JJ36.1standard appendix A and dimension table of construction industry.

For example: Int-gear type HSN1435.40A Ext-gear type HSW1220.40

2.3 Inorder to satisfy the series specification which specially supported the introduced goods, it should add [F-;R-"in the front of code, which see in the JJ36.1standard appendix A and dimension table of construction industry.

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 Xibei Bearing Co., Ltd. is located in the Yinchuan city, the capital of Ningxia province. Its predecessor, the Xibei Factory was founded in the depths of Helan Mountain in 1965. From 1982, it moved to Yinchuan city, and builds a modern factory in the Yinchuan city. It makes a positive contribution to the revitalization of bearing industry in China.Xibei Bearing Co., Ltd. is one of the biggest bearing manufactories in the west of China, one of the leading companies in bearing industry. It has certificate for the Exemption for the Export Inspection and its NXZ trademark is the Chinese well-know mark.Located In the northwest of China, Xibei Bearing Co., Ltd. orientate to equip China and service to the world. During the course of development, Xibei Bearing Co., Ltd. continuously accumulates experience, pioneering and innovative, forge ahead with determination. In accordance with the international standard and customer`s special requirement, Xibei Bearing can produce more than 6000 varieties of bearing standard and non-standard with outside diameter from 40mm to 3500mm. NXZ bearing is widely used in rail transit, military industry, precision motor, petroleum machinery, metallurgy machinery, heavy truck, construction machinery, mining machinery, cement machinery and hydraulic engineering, etc., and well sold all over China and export to over 50 countries and regions, such as Europe, America, Asia, Africa, etc. Xibei Bearing Co., Ltd. has National Enterprise Technical Center, postdoctoral scientific research workstation, and union engineering laboratory by local with state for large special bearing. There are abundant technical strength, first-class new product research & development, technology innovation ability, perfect technical innovation and product development system. It`s research and develops more than 200 kinds of new products per year on average. Research and development of oil drilling bearing 30228/630Q won the national quality gold medal. NXZ research & development and manufacturing process is leading level large special bearing. Products are successfully applied to the shenzhou V, Shenzhou VI launch monitoring device. Company has more than 500 kinds of products have filled the country blank space; nearly 1000 kinds of products reached the international advanced level.Xibei Bearing Co., Ltd. has all kinds of professional and technical personnel more than 300, including over 90 senior professional and technical personnel, with eight enjoy state council allowance, four enjoy the Ningxia autonomous region government subsidies, one is in the state [Bai qian wan project", and two are postdoctoral. Xibei Bearing promises the concept of [Customer First, Quality first" has successively passed the ISO9001 quality management system, ISO14001 environment manage system, ISO10012 metering management system, GJB9001B military quality system, ISO/TS16949 automotive quality system certification, and is national first-class metrology unit.Xibei Bearing Co., Ltd. possesses all kinds of equipment and test equipment of 2500 sets, in which, 425 sets are [large, precise and high-tech" equipment. It can supply the informatization and intelligentized process equipment to customer with higher quality product in bearing industry.Xibei Bearing Co., Ltd. makes the best of existing well-know mark, the advantage of the technology, resources and market, according to the [Made in China 2025" Strategy, promoteing high technology content, high value-added, high precision, high reliability bearing product. In Yinchuan state-level economic and technological development zone plans and constructs the first-level high-end bearing industrial base with digital, intelligent, informatization, greenization as the target. Xibei Bearing will be built into the biggest high-end bearing base in the West of China for research and develop, test and intelligent high-end base, the domestic first-level export high-end export base, fulfilled industry transformation and updating fulfill the capacity of annual output high-end equipment bearing for rail transit, military machinery, precision machinery, wind power, petroleum machinery, metallurgy machinery, mining machinery and heavy truck.

Company Info

  • Company Name: Xibei Bearing Co.,Ltd.
  • Representative: Mr Zhao
  • Product/Service: Bearing , Railway Bearing , Petroleum Bearing , Metallurgy Rolling Mill Bearing , Heavy Truck Bearing , Construction Machinery Bearing
  • Capital (Million US $): 372,440,000RMB
  • Year Established: 1965
  • Total Annual Sales Volume (Million US $): US$50 Million - US$100 Million
  • Export Percentage: 1% - 10%
  • Total Annual Purchase Volume (Million US $): Below US$1 Million
  • No. of Production Lines: Above 20
  • No. of R&D Staff: Above 100 People
  • No. of QC Staff: Above 100 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): Above 100,000 square meters
  • Factory Location: No.630,Beijing West Road, Yinchuan, Ningxia 750021, China
  • Contact Person: Ms. Jane Li
  • Tel: 86-951-2020454
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