cheap ball bearings, slewing bearings, escavatore hitachi

Advantages

1.ISO 9001:2008 certificate,12 years experience

2.High qualified material,low MOQ,excellent quality,competitive prices,professional advice

3.Standard and non standard are all acceptable

4.OEM available

5.Stronger loading capacity, Larger radial and axial force bearing ability

6.Independent R&D team

7.Strict quality control management

8.Exquisite technological standard

9.Sufficient stock

10.Excellent after sales service

Main slewing ring bearing type                                                                  

Single-row four-point contact ball series.

Single-row crossed roller series.

Double-row ball series.

Three-row roller    series.                            

Part                              Material                            feature               

Rolling element                    Gcr15/Gcr15SiMn                          whole quench hardening

Rings                                 50Mn/42Mocr/S48S                       Surface quench hardening

Retainer                             ZL102 cast aluminium alloy/            abrasion resistance

                                        polyamide110 resin/Nylon 

                                        GRPA66.25/stainless steel NO20   

sealing ring                         NBR rubber                                  oil resistance                   

All above could produce according to customer's requirement

Manufacture equipment                           Test tool                  

Forging oil press                                                          5m Test balancer

Forging ring rolling machine                                           hardness tester

The reclaimer/Ingot                                                      light wave flaw detector

Quenching and tempering furnace                                  tensile strength tester

Hob ginding machine/Travelling crane                              hardness test press

Natural Gas forge furnace                                              physical chemistry snalyzer

Tempering furnace/Temper stove                                   150mm-5000mm vernier caliper

intermediate frequency quenching equipment                   sub micrometer diameter

Lather/NC Lathe/Vertical lathe/NC lineation                      Universal angle rule

Rocker driller/Gear Shaper/NC drilling machine                 Tooth thickness gauge

Hoobing machine/carbon sulfur analyzer                         quenching concentration meter

Air Compressor                                                            intelligent three element hight-speed analyzer

Plane grinding machine                                                  carbon sulfur analyzer

grinding machine                                                          Electric arc furnace

First lubricated, Second circled with plastic film/kraft paper/blue belt,then pakaged in wooden case,last gethered in Wooden pallet.

Others                                                                                        

MOQ                   1 piece

Lead time            30 days

Payment terms    T/T /L/C/ Escrow/Wester union/

Ports                  Shanghai,Qingdao

Application                                                                                

Engineering machinery,

Construction machinery,

Metallurgical mining machinery,

Marine port machinery,

Sewage Treatment Plant;

Wind Power Field;

Agricultural Machinery;

Petrochemical machinery,

Filling machines,

Engineering vehicles,

Military equipment and other industries.