Gold Member Since 2015
Audited Supplier
Dalian Running Engineering Co., Ltd.

Excavator Slewing Bearing, Single Row Ball Slewing Bearing, Construction Equipment Slewing Bearing manufacturer / supplier in China, offering Single Row Four Point Contact Ball Slewing Bearing, High Precise Preload Cross Roller Bearings, Light Weight Series Thin Section Slewing Ring Bearings and so on.

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Supplier Homepage Product Slewing Bearing Slewing Bearing Type Single Row Four Point Contact Ball Slewing Bearing

Single Row Four Point Contact Ball Slewing Bearing

FOB Price: US $300-9,999 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $300-9,999/ Piece
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Port: Shanghai, China
Production Capacity: 1000PCS/Month
Payment Terms: T/T

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Basic Info
  • Model NO.: 010, 011, 012, 013, 014
  • Warranty: 12 Months
  • Rolling Element: Ball, Roller
  • Quench & Temper Hardness: 229hb-269hb
  • Normalizing Hardness: 187hb-241hb
  • Type: Single Row Ball
  • Transport Package: Wooden Case
  • Origin: China
  • Material: Steel 45#, 50mn, 42CrMo
  • Gear Options: Ungeared, External Gear and Internal Gear Type
  • Seals: NBR
  • Raceway Hardness After Quenching: 55HRC-62HRC
  • Model: as Requested
  • Trademark: DRE
  • Specification: as your request
  • HS Code: 848340900
Product Description

Single Row Four Point Contact Ball Slewing Bearing

Classification Of DRE Slewing Bearing /Ring

Slewing bearing can be classified by different stucture:

1. Single row four point contact slewing bearing/slewing ring

2. Single row cross roller slewing/slewing ring

3. Double row different diameter ball slewing bearing/slewing ring

4. Double row balls slewing bearing/slewing ring

5. Three row roller slewing bearing/slewing ring

Slewing bearing also can be classified by teeth:

1. slewing bearing/ring with non-teeth

2 .slewing bearing/ring with external teeth

3. slewing bearing/ring with internal teeth

Single Row Four Point Contact Ball Slewing Bearing

Single row ball swivel turntable slewing bearing 

It is single-row four point contact ball slewing bearing. Slewing bearings/slewing rings may used for slewing conveyors, welding operating consoles, light, medium duty cranes, excavators and other engineering machines.

Single Row Four Point Contact Ball Slewing Bearing


Mainly applied area:


Four Point Contact Slewing Ring Bearing is widely used in many machines such as the rotary transfer machine, welding manipulator,small or middle size crane,excavator,and other construction machineries,etc.



  • Brand name: DRE
  • Material: 42CrMo,50Mn,steel 45#
  • Seals type: NBR
  • Feature: Four point contact Internal gear, external gear and nongeared. 
  • Bore Size: 80-5000mm
  • Outside Diameter: 100-5000mm
  • Warranty: 12 months
  • Rolling element: Steel balls
  • OEM: Available
  • Normalizing hardness: 206HB-262HB
  • Quench&temper hardness: 229HB-269HB
  • Recaway hardness: HRC 55-62
  • Quenched teeth hardness: HRC 55+-5



Replacement of Other Manufacturers:We produce a lot of slewing rings/slewing bearings according to the number or spec of other slewing bearings manufacturer, so if you before use some other slewing bearings manufacturer slewing ring/slewing bearings, you also can give us number, we can produce the replacement of it.

Test Reports and Certifications

every step of processing from raw material to packaging is controled strictly. Slewing bearing test report will be sent with commercial invoice/packing list and other documents to customer directly. 

Single Row Four Point Contact Ball Slewing Bearing

DRE Customer Reference

We are the stable supplier for many worldwide famous company like Sandvik, PSL, Siemens ,Tatasteel, HP, BMW and SAKATO.

Our Service

Winthin 24 hours reply
Professional exporting handling
Professional bearings knowledge
Custom service
OEM service
Stock service
Kinds of payment terms
Technical Supports
Sample available
Any shipping method

If you have any question about our products and technical details, please feel free to contact me!

Contact Info:
Joyce Wang
Export Sales
DRE Engineering Co., Ltd
Tel: 0086-411-84618155
Fax: 0086-411-84633077
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