Three-Row Roller Slewing Ring Bearings, also called three-row cylindrical roller combination slewing ring bearings, is a kind of bearing with high load carrying capacity, which is mainly used in occasions with large loads. This slewing bearing has three seating rings, the upper, lower and radial raceways are separated, so that each row of rollers can bear axial and radial loads respectively, and it is one of the four products with higher load carrying capacity. In this kind of turntable bearing, the axial force and tilting torque are borne by the upper and lower rows of horizontal rollers; the radial force is borne by the third row of rollers arranged vertically. It is widely used in medium and large cranes and excavators and other construction machinery, construction machinery, metallurgy, port lifting equipment, ship cranes and other equipment with large loads are also widely used three rows of cylindrical roller combination slewing ring bearings.

Three rows of cylindrical roller combination slewing ring bearings simultaneously bear axial load, tilting moment and radial load. Compared with crossed cylindrical roller slewing disc bearings, the load per roller is reduced, and compared with double-row radial ball slewing disc bearings, the contact stresses are reduced by moving from point contact to line contact. As a result, the load carrying capacity is greater, under the same shape and size conditions. The axial and radial loads of this structure are carried by different rollers, where the axial load and tilting moment are carried by two sets of rollers placed horizontally by the shaft, and the radial load is carried by one set of rollers placed vertically by the shaft.

Three-row roller

External Tooth Type Three-Row Roller Slewing Ring Bearings Product Parameters

Three-Row Roller Slewing Ring Bearings
LKPB ModelOverall dimensionsMounting DimensionsTooth parameterPayloadsWeights
DedediDiHeHiHtFeNeVFiNiVmzDpx·m
[mm][mm][mm][mm][mm][mm][mm][mm][-][mm][-][mm][-][mm][mm][kN][kg]
E-050066552653736611613814859824184022418513065052750224
E-056072558659742611613814865824184622418514271053080240
E-06308085936044961161381487282818532281889878483450270
E-071088867368457611613814880828186122818810886483880300
E-0800100883084163614217218292036226803622812398485490500
E-090011049309417361421721821020362278036228135108086190600
E-1000122010301041836142172182112040228804022101191190106890680
E-11201340115011619561421721821240402210004022101311310107680820
E-12501512120012101055170210220139345261107452614105147014111001200
E-14001666135013601205170210220154345261257452614116162414124001300
E-16001872155015601405170210220174348261457482616114182416142001520
E-18002072184018501605170210220194348261657482614145203014159001750
E-20002304194519671779177219231215560331845603318125225018205002400
E-22402556218522072019177219231239560332085603318139250218231002700
E-25002820244524672279177219231265572332345723320138276020258003000

Internal Tooth Type Three-Row Roller Slewing Ring Bearings Product Parameters

Three-Row Roller Slewing Ring Bearings
LKPB ModelOverall dimensionsMounting DimensionsPayloadsWeights
DedediDiHeHiHtFeNeVFiNiV
[mm][mm][mm][mm][mm][mm][mm][mm][-][mm][-][kN][kg]
U-0500634526537366138116148598241840224182750224
U-0560694586597426138116148658241846224183080240
U-0630764656667496138116148728281853228183450270
U-0710844736747576138116148808281861228183880300
U-0800964830841636172142182920362268036225490500
U-090010649309417361721421821020362278036226190600
U-10001164103010418361721421821120402288040226890680
U-112012841150116195617214218212404022100040227680820
U-125014451290130010552101702201393452611074526111001200
U-140015951440145012052101702201543452612574526124001300
U-160017951640165014052101702201743482614574826142001520
U-180019951840185016052101702201943482616574826159001750
U-200021952041205518161371171502127603318856033169001120
U-224024612273229520192191772312395603320856033231002700
U-250027212533255522792191772312655723323457233258003000

LKPB Three-Row Roller Slewing Ring Bearings Product Features

  • Material: 42CrMo, 50Mn
  • Seal type: Nitrile rubber
  • Characteristics: four-point
  • contact inner teeth / outer teeth / no teeth
  • Inner diameter size: 100-8000mm
  • Outside diameter: 200-10000mm
  • Warranty: 12 months
  • Rolling body: steel ball
  • Normalized hardness: 187HB-241HB
  • Tempering hardness: 229HB-269HB
  • Raceway quenching hardness: HRC 55-62
  • Non-standard models can be designed and manufactured according to customer requirements.
  • Optimization of the sealing structure or redesign of the internal retainer according to customer requirements.
  • Packing: metal stand or export standard non-fumigation wooden case.

For expert guidance in meeting your specific requirements, reach out to our knowledgeable team. Experience firsthand how our precision solutions can elevate your machinery’s efficiency and durability. Contact us today!

LKPB With more than 10 years of production experience

Supporting OEM service; 50 days return service; 7*24 hours technical support; Accept non-standard customization; Maximum 24 months product warranty

FAQ

Luoyang LIKE Precision Machinery Co., Ltd – LKPB®, Product precision can be P5, P4, P2 and VSP, Inside diameter size range φ20mm – φ2000mm. Maximum product quality warranty of 24 months, OEM acceptable.

LKPB With more than 10 years of production experience, The most professional suppliers of precision bearings in China. 

LKPB® strictly follows the ISO9001 quality system requirements for product quality control, relying on the professional technology of the bearing production base, the product quality is stable and cost-effective,

LKPB®, turning the world, carrying unlimited! We have served thousands of customers all over the world during the ten years of our establishment.

Our future goal is to become the most professional manufacturer of rotary table bearings and crossed roller bearings in China, and make LKPB® a world-class bearing brand.

This is our vision and direction!

LKPB® has accumulated rich production experience in the past 10 years,  supporting OEM service. Our products are exported to Germany, Italy, Korea, Japan, the United States, Belgium, Turkey and so on.

Top quality:

1. Precision Rotary Table Bearings ( YRT, YRTCYRTS, YRTMZKLDF Series) ;

2. Precision Cross Roller Bearings ( RA/RA-C, RAURBRU, RW, RE, SXXU, XV, XSUXR/JXRCRB/CRBC, CRBF/CRBFV,  CRBH/CRBHV, CRBS/CRBSV, CRBT/CRBTF Series); 

3. Precision Thin Section Bearings ( KAA, KA, KB, KC, KD, KF, KG, JHA, JA, JB, JG, JU Series);  

4. Robot Harmonic Reducer Bearings (CSF/CSGSHF/SHG, Z Series and Flexible Bearings F, 3E Series); 

5. Angular Contact Ball Bearings ( 718, 719, 70, 72, 2344/2347 Series);  

6. Ball Screw Support Bearings (ZKLF(N), ZARF, ZARN Series);

7. Hollow Rotary Platform Bearings ( ZK Series).

Yes, We have experience working in this area

The main application areas of our products are precision rotary tables, machining center rotary tables, industrial robot joints and rotating, robotic rotating parts, CNC machine tools, automation industry, direct drive motors, precision instruments, radar, medical equipment and other industries.

Regular models are in stock, reasonable prices, ready for delivery, non-standard precision bearings according to the requirements of the drawings and the number of 1-3 weeks delivery time