Luoyang Jiawei Bearing Manufacturer Co.,Ltd Company Logo Luoyang Jiawei Bearing Manufacturer Co.,Ltd
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Slewing Bearing Wind Turbine

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Luoyang Jiawei Bearing Manufacturer Co.,Ltd
[China]

Address
Bearing Zone, Yiyang Industry Cluster District, Luoyang Henan
Phone
86-379-60855562
Contact name
Perry Qian

Quick Information

  • Brand Name: LYJW
  • Place of Origin: China
  • Model Number : 11series, HJ series
  • OD from 100- 7800mm : Forged
  • 42CrMo : 50Mn
  • External gear type : Internal gear type
  • Non gear type : Non standard

Description

Slewing bearing is a rotational rolling-element bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis windmill.
Compared to other rolling-element bearings, slewing bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metres diameter and fit over a 3.5 metre axle. Slewing bearings resemble oversize aircraft control surface bearings.
Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.
Slewing bearings are often made with gear teeth integral with the inner or outer race, used to drive the platform relative to the base.
As for other bearings that reciprocate, rather than rotating continuously, lubrication can be difficult. The oil wedge built up in a continuously rotating bearing is disrupted by the stop start motion of slewing. Instead, a hydrostatic bearing with pumped oil flow may be used.
 

Material 42CrMo,50Mn,42SiMn,Steel45,5CrMnMo,45Mn
Diameter From 100mm to 7800mm
Hardness with Tempering(HB) 229-269HB
Hardness with Normalizing(HB) 187-241HB
Surface Hardness(HRC) 55-62HRC
MOQ 1 PC
Certification BV, CCS, ABS, DNV, GL, BV
Lead Time 15-35 days

Application:New energy,Metallurgical,Play Equipment,Airport equipment,Military,Robot,Medical Machine,Environment ,protection equipment,Parking Equipment,Transporter,Wind Power,Crane

Component:
 

Component Name Type Material
Rolling Element Ball and roller GCr15
GCr15SiMn
Seal   Oil resistant rubber
Buna-N rubber
Fixed retainers integral type
sectional type
separate unit
Steel20
ZL102cast aluminium alloy
Polyamide 1010 resin

Main Equipment: 
 

Equipment Qty Capacity
(PCS) (mm)
Crown Block 15 ALL
Vertical Lathe 7 2000-6500
Vertical Lathe 3 Max2.5M
Vertical Lathe 5 500-1500
Horizontal lathe 2 630
CNC Horizontal lathe 2 630
Grinder 5 500
Vertical Grinder 4 750
Grinder 4 3000
Quenching Machine 5 ALL
Gear Hobbing Machine 4 max800
4 max3150
2 max2000
2 max1500
Gear Shaper 5 1000-1200
3 1800
CNC Drilling Machine 2 ALL
Drilling Machine 5 max1600
Drilling Machine 5 max6300
Heat Treatment Furnace 2 ALL

Packing:
Step1- Antirust oil for surface treatment, Step2- Be wrapped with plastic cloth wrapped, Step3- then be wrapped with kraft paper, Step4- Be wrapped with another plastic cloth again. Step5- Be packed with plywood case. 
 
Quality Control:
Product inspection are in house, there are 53 QC and QA persons in factory.
During produce, the operation workers inspect product for each process according to drawing at first, and then QC person inspect each process and product again and keep record accordingly.
To do clearance test for each finished bearing. 
To process dimension and clearance test according to inspection record by final QC. 
Slewing bearing appearance is inspected again before packing. 
Quality control Documents including: 
Quality Control Process Chart
Forging blank certification (UT, Heat treatment, Chemical composition, size)
Production Schedule
Forging blank inspection report
Final production inspection report
Hardness test report
Ultrasonic test report
Magnaflux test report
Clearance Test
Product process inspection report
Inspector working record
We can provide customer final inspection reports as following:
Certification of quality
Using instruction of slewing bearing
Chemical composition report
UT report of rolling element
Certification of Heat treatment
Final inspection report
Any other report if required. 
 


Price

  • Price Condition : FOB
  • Delivery Port : Qingdao

Packaging & Delivery

  • Packing :Plywood case
  • Delivery Lead Time : General 30 days for mass product
  • Minimum Order : 1
  • Supply Ability : 300 sets per Month

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