Product Details

KAYDON Four Point Contact Ball Slewing Ring Bearing

The Kaydon Four Point Contact Ball Slewing Ring Bearing is engineered to handle both radial and axial loads effectively. With its four-point contact design, it ensures even load distribution, reducing stress and providing smooth, precise motion. This makes it ideal for applications such as construction equipment, solar trackers, and industrial machinery. Kaydon bearings are recognized for their high durability, load capacity, and long service life, even in challenging conditions. These slewing rings are available in customizable sizes and configurations, allowing for tailored solutions to meet specific operational needs.

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Specification

The Kaydon Four Point Contact Ball Slewing Ring Bearing is designed to handle both radial and axial loads with high efficiency. Its unique four-point contact design allows for better load distribution and reduced stress, ensuring smooth rotation and high performance.

These bearings are ideal for applications such as cranes, excavators, solar tracking systems, and industrial machinery, where precise and reliable movement is essential. Kaydon’s four-point contact ball slewing rings are known for their durability, high load capacity, and long service life, even under harsh operating conditions. Customizable configurations and sizes are available to meet specific application needs.

Part NumberGearBearing TypeDodiHHoHiMoment Load Rating
MTO-050Without GearStandard4.331"1.968"0.787"0.728"0.728"675 ft-lbs
MTO-050TWithout GearStandard4.331"1.968"0.787"0.728"0.728"675 ft-lbs
MTO-065Without GearStandard5.315"2.559"0.866"0.787"0.787"1075 ft-lbs
MTO-065TWithout GearStandard5.315"2.559"0.866"0.787"0.787"1075 ft-lbs
MTO-122Without GearStandard8.898"4.803"1.339"1.142"1.142"5020 ft-lbs
MTO-122TWithout GearStandard8.898"4.803"1.339"1.142"1.142"5020 ft-lbs
16305001External GearStandard9.5"4.813"1.344"1.141"1.141"6200 ft-lbs
MTO-143Without GearStandard9.803"5.63"1.339"1.142"1.142"8950 ft-lbs
MTO-143TWithout GearStandard9.803"5.63"1.339"1.142"1.142"8950 ft-lbs
MTO-145Without GearStandard11.811"5.709"1.968"1.732"1.732"26000 ft-lbs
MTO-145TWithout GearStandard11.811"5.709"1.968"1.732"1.732"26000 ft-lbs
MTO-170Without GearStandard12.205"6.693"1.811"1.614"1.614"16520 ft-lbs
MTO-170TWithout GearStandard12.205"6.693"1.811"1.614"1.614"16520 ft-lbs
MTE-145External GearStandard12.286"5.709"1.968"-1.732"26000 ft-lbs
MTE-145TExternal GearStandard12.286"5.709"1.968"-1.732"26000 ft-lbs
MTE-145XExternal GearStandard12.286"5.709"1.968"-1.732"30600 ft-lbs
MTO-145XWithout GearStandard12.286"5.709"1.968"1.732"1.732"30600 ft-lbs
MTO-145XTWithout GearStandard12.286"5.709"1.968"1.732"1.732"30600 ft-lbs
MTO-210Without GearStandard14.37"8.268"1.575"1.496"1.496"44500 ft-lbs
MTO-210TWithout GearStandard14.37"8.268"1.575"1.496"1.496"44500 ft-lbs
MTE-210External GearStandard14.686"8.268"1.575"-1.496"44500 ft-lbs
MTE-210TExternal GearStandard14.686"8.268"1.575"-1.496"44500 ft-lbs
MTE-210XExternal GearStandard14.686"8.268"1.968"-1.732"52100 ft-lbs
MTO-210XWithout GearStandard14.686"8.268"1.968"1.732"1.732"52100 ft-lbs
MTO-210XTWithout GearStandard14.686"8.268"1.968"1.732"1.732"52100 ft-lbs
KH-125EExternal GearStandard16.5"8.625"2.5"2"2"25800 ft-lbs
KH-125PWithout GearStandard16.5"8.625"2.5"2"2"25800 ft-lbs
MTO-265Without GearStandard16.535"10.433"1.968"1.732"1.732"62000 ft-lbs
MTO-265TWithout GearStandard16.535"10.433"1.968"1.732"1.732"62000 ft-lbs
16292001Internal GearStandard16.625"9.714"1.968"1.732"1.732"71800 ft-lbs
MTE-265External GearStandard17.086"10.433"1.968"-1.732"62000 ft-lbs
MTE-265TExternal GearStandard17.086"10.433"1.968"-1.732"62000 ft-lbs
MTE-265XExternal GearStandard17.086"10.433"1.968"-1.732"71900 ft-lbs
MTO-265XWithout GearStandard17.086"10.433"1.968"1.732"1.732"71900 ft-lbs
MTO-265XTWithout GearStandard17.086"10.433"1.968"1.732"1.732"71900 ft-lbs
RK6-16E1ZExternal GearFlanged19.9"11.97"2.205"1.811"1.811"22700 ft-lbs
HS6-16E1ZExternal GearStandard19.9"12"2.2"1.8"1.8"50500 ft-lbs
RK6-16P1ZWithout GearFlanged20.39"11.97"2.205"1.811"1.811"22700 ft-lbs
RK6-16N1ZInternal GearFlanged20.39"12.85"2.205"1.811"1.811"22700 ft-lbs
HS6-16P1ZWithout GearStandard20.4"12"2.2"1.8"1.8"50500 ft-lbs
HS6-16N1ZInternal GearStandard20.4"12.85"2.2"1.8"1.8"50500 ft-lbs
16293001Internal GearStandard20.486"12.75"2.06"2"2"81300 ft-lbs
MTE-324TExternal GearStandard20.486"12.75"2.062"-2.022"102400 ft-lbs
MTO-324TWithout GearStandard20.486"12.75"2.062"2.022"2.022"102400 ft-lbs
MTE-324XExternal GearStandard20.486"12.77"2.375"-2.063"102400 ft-lbs
MTO-324XWithout GearStandard20.486"12.77"2.375"2.063"2.063"102400 ft-lbs
KH-166EExternal GearStandard20.5"12.75"2.5"2"2"45200 ft-lbs
KH-166PWithout GearStandard20.5"12.75"2.5"2"2"45200 ft-lbs
16306001External GearStandard21.286"12.438"2.812"2.656"2.656"122500 ft-lbs
MTE-415External GearStandard24.65"16.25"2.375"-2.063"159200 ft-lbs
MTE-415TExternal GearStandard24.65"16.25"2.375"-2.063"159200 ft-lbs
MTO-415Without GearStandard24.65"16.25"2.375"2.063"2.063"159000 ft-lbs
MTO-415TWithout GearStandard24.65"16.25"2.375"2.063"2.063"159000 ft-lbs
HS6-21E1ZExternal GearStandard25.15"17"2.2"1.8"1.8"72700 ft-lbs
RK6-22E1ZExternal GearFlanged25.15"17.09"2.205"1.811"1.811"37700 ft-lbs
HS6-21P1ZWithout GearStandard25.5"17"2.2"1.8"1.8"72700 ft-lbs
HS6-21N1ZInternal GearStandard25.5"17.6"2.2"1.8"1.8"72700 ft-lbs
RK6-22P1ZWithout GearFlanged25.51"17.09"2.205"1.811"1.811"37700 ft-lbs
RK6-22N1ZInternal GearFlanged25.51"17.6"2.205"1.811"1.811"37700 ft-lbs
16294001Internal GearStandard25.75"16.85"2.75"2.375"2.375"143000 ft-lbs
KH-225EExternal GearStandard26.667"18.5"2.5"2"2"56000 ft-lbs
KH-225PWithout GearStandard26.7"18.5"2.5"2"2"56000 ft-lbs
MTE-470External GearStandard26.9"18.5"2.375"-2.063"191600 ft-lbs
MTE-470TExternal GearStandard26.9"18.5"2.375"-2.063"191600 ft-lbs
MTO-470Without GearStandard26.9"18.5"2.375"2.063"2.063"188000 ft-lbs
MTO-470TWithout GearStandard26.9"18.5"2.375"2.063"2.063"188000 ft-lbs
16295001Internal GearStandard28.937"19.6"2.834"2.48"2.48"244000 ft-lbs
HS6-25E1ZExternal GearStandard29.15"21"2.2"1.8"1.8"91800 ft-lbs
RK6-25E1ZExternal GearFlanged29.15"21.03"2.205"1.811"1.811"49800 ft-lbs
RK6-25P1ZWithout GearFlanged29.45"21.03"2.205"1.811"1.811"49800 ft-lbs
RK6-25N1ZInternal GearFlanged29.45"21.6"2.205"1.811"1.811"49800 ft-lbs
HS6-25P1ZWithout GearStandard29.5"21"2.2"1.8"1.8"91800 ft-lbs
HS6-25N1ZInternal GearStandard29.5"21.6"2.2"1.8"1.8"91800 ft-lbs
MTE-540External GearStandard29.65"21.25"2.375"-2.063"232000 ft-lbs
MTE-540TExternal GearStandard29.65"21.25"2.375"-2.063"232000 ft-lbs
MTO-540Without GearStandard29.65"21.25"2.375"2.063"2.063"232000 ft-lbs
MTO-540TWithout GearStandard29.65"21.25"2.375"2.063"2.063"232000 ft-lbs
16307001External GearStandard30.457"19"3.625"3.25"3.25"322000 ft-lbs
KH-275EExternal GearStandard31.667"23.5"2.5"2"2"75000 ft-lbs
KH-275PWithout GearStandard31.7"23.5"2.5"2"2"75000 ft-lbs
RK6-29E1ZExternal GearFlanged32.9"24.97"2.205"1.811"1.811"54200 ft-lbs
HS6-29E1ZExternal GearStandard32.9"25"2.2"1.8"1.8"111900 ft-lbs
RK6-29P1ZWithout GearFlanged33.39"24.97"2.205"1.811"1.811"54200 ft-lbs
RK6-29N1ZInternal GearFlanged33.39"25.6"2.205"1.811"1.811"54200 ft-lbs
HS6-29P1ZWithout GearStandard33.4"25"2.2"1.8"1.8"111900 ft-lbs
HS6-29N1ZInternal GearStandard33.4"25.6"2.2"1.8"1.8"111900 ft-lbs
MTE-590External GearStandard33.534"23.125"2.875"-2.563"338700 ft-lbs
MTE-590TExternal GearStandard33.534"23.125"2.875"-2.563"338700 ft-lbs
MTO-590Without GearStandard33.534"23.125"2.875"2.563"2.563"338000 ft-lbs
MTO-590TWithout GearStandard33.534"23.125"2.875"2.563"2.563"338000 ft-lbs
16296001Internal GearStandard34.252"24.921"2.834"2.48"2.48"343000 ft-lbs
HT10-30E1ZExternal GearStandard35.84"24"3.5"3"3"340000 ft-lbs
HT10-30P1ZWithout GearStandard36"24"3.5"3"3"340000 ft-lbs
HT10-30N1ZInternal GearStandard36"24.16"3.5"3"3"340000 ft-lbs
KH-325EExternal GearStandard36.667"28.5"2.5"2"2"92000 ft-lbs
KH-325PWithout GearStandard36.7"28.5"2.5"2"2"92000 ft-lbs
HS6-33E1ZExternal GearStandard37.2"28.83"2.2"1.8"1.8"128000 ft-lbs
RK6-33E1ZExternal GearFlanged37.2"28.9"2.205"1.811"1.811"56500 ft-lbs
RK6-33P1ZWithout GearFlanged37.32"28.9"2.205"1.811"1.811"56500 ft-lbs
RK6-33N1ZInternal GearFlanged37.32"29.133"2.205"1.811"1.811"56500 ft-lbs
HS6-33P1ZWithout GearStandard37.4"28.83"2.2"1.8"1.8"128000 ft-lbs
HS6-33N1ZInternal GearStandard37.4"29.13"2.2"1.8"1.8"128000 ft-lbs
MTE-705External GearStandard38.201"27.75"2.875"-2.563"443200 ft-lbs
MTE-705TExternal GearStandard38.201"27.75"2.875"-2.563"443200 ft-lbs
MTO-705Without GearStandard38.201"27.75"2.875"2.563"2.563"443000 ft-lbs
MTO-705TWithout GearStandard38.201"27.75"2.875"2.563"2.563"443000 ft-lbs
12440001External GearStandard39.4"29.5"3.875"3.031"3.031"477000 ft-lbs
16390001Internal GearStandard40.88"30.56"3.38"3"3"461000 ft-lbs
HS6-37E1ZExternal GearStandard41.2"32.83"2.2"1.8"1.8"130900 ft-lbs
RK6-37E1ZExternal GearFlanged41.2"32.84"2.205"1.811"1.811"65200 ft-lbs
HS6-37P1ZWithout GearStandard41.25"32.83"2.2"1.8"1.8"130900 ft-lbs
HS6-37N1ZInternal GearStandard41.25"33.133"2.2"1.8"1.8"130900 ft-lbs
RK6-37P1ZWithout GearFlanged41.26"32.84"2.205"1.811"1.811"65200 ft-lbs
RK6-37N1ZInternal GearFlanged41.26"33.133"2.205"1.811"1.811"65200 ft-lbs
HT10-36E1ZExternal GearStandard41.84"30"3.5"3"3"395700 ft-lbs
MTE-730External GearStandard41.85"28.75"3.25"-2.88"588000 ft-lbs
MTE-730TExternal GearStandard41.85"28.75"3.25"-2.88"588000 ft-lbs
MTO-730Without GearStandard41.85"28.75"3.25"2.88"2.88"587000 ft-lbs
MTO-730TWithout GearStandard41.85"28.75"3.25"2.88"2.88"587000 ft-lbs
HT10-36P1ZWithout GearStandard42"30"3.5"3"3"395700 ft-lbs
HT10-36N1ZInternal GearStandard42"30.16"3.5"3"3"395700 ft-lbs
RK6-43E1ZExternal GearFlanged46.867"38.75"2.205"1.811"1.811"75500 ft-lbs
HS6-43E1ZExternal GearStandard46.87"38.75"2.2"1.8"1.8"139900 ft-lbs
RK6-43P1ZWithout GearFlanged47.17"38.75"2.205"1.811"1.811"75500 ft-lbs
RK6-43N1ZInternal GearFlanged47.17"39.133"2.205"1.811"1.811"75500 ft-lbs
HS6-43P1ZWithout GearStandard47.18"38.75"2.2"1.8"1.8"139900 ft-lbs
HS6-43N1ZInternal GearStandard47.18"39.13"2.2"1.8"1.8"139900 ft-lbs
MTE-870External GearStandard47.444"34.25"4.25"-3.875"873800 ft-lbs
MTE-870TExternal GearStandard47.444"34.25"4.25"-3.875"873800 ft-lbs
MTO-870Without GearStandard47.444"34.25"4.25"3.875"3.875"873000 ft-lbs
MTO-870TWithout GearStandard47.444"34.25"4.25"3.875"3.875"873000 ft-lbs
HT10-42E1ZExternal GearStandard47.84"36"3.5"3"3"457000 ft-lbs
HT10-42P1ZWithout GearStandard48"36"3.5"3"3"457000 ft-lbs
HT10-42N1ZInternal GearStandard48"36.16"3.5"3"3"457000 ft-lbs
16374001Internal GearStandard48.25"36.4"4"3.5"3.5"720000 ft-lbs
16308001External GearStandard50.64"37.75"4"3.62"3.62"832000 ft-lbs
HT10-48E1ZExternal GearStandard53.84"42"3.5"3"3"517900 ft-lbs
HT10-48P1ZWithout GearStandard54"42"3.5"3"3"517900 ft-lbs
HT10-48N1ZInternal GearStandard54"42.16"3.5"3"3"517900 ft-lbs
12288001External GearStandard54.3"42"4.625"3.625"3.625"875000 ft-lbs
16297001Internal GearStandard54.375"41.28"5"4.625"4.625"1131000 ft-lbs
16309001External GearStandard56.24"41.37"4.75"4.4"4.4"1220000 ft-lbs
HT10-54E1ZExternal GearStandard59.84"48"3.5"3"3"578400 ft-lbs
HT10-54P1ZWithout GearStandard60"48"3.5"3"3"578400 ft-lbs
HT10-54N1ZInternal GearStandard60"48.16"3.5"3"3"578400 ft-lbs
16289001Without GearStandard61.25"52.325"3.54"2.8"2.8"348000 ft-lbs
16310001External GearStandard61.3"47.125"5.875"4.688"4.688"1522000 ft-lbs
16298001Internal GearStandard62.25"47.76"4.875"4.375"4.375"1650000 ft-lbs
HT10-60E1ZExternal GearStandard65.84"54"3.5"3"3"638800 ft-lbs
HT10-60P1ZWithout GearStandard66"54"3.5"3"3"638800 ft-lbs
HT10-60N1ZInternal GearStandard66"54.16"3.5"3"3"638800 ft-lbs
16299001Internal GearStandard72.5"57"6"5"5"1831000 ft-lbs
16311001External GearStandard75"54.5"6.5"5.875"5.875"2873000 ft-lbs
16300001Internal GearStandard81.75"62.267"6.5"6.125"6.125"3764000 ft-lbs
16312001External GearStandard85.067"66.75"7.12"6.62"6.62"3575000 ft-lbs
16389001Without GearStandard87.992"69.094"6.024"5.512"5.512"3675000 ft-lbs
16313001External GearStandard98.8"78.4"6.625"6"6"4951000 ft-lbs
16301001Internal GearStandard102.5"85.36"7.44"5.66"5.66"3457000 ft-lbs
16302001Internal GearStandard117"93.6"7.125"6.5"6.5"6125000 ft-lbs
16290001Without GearStandard129"113"5.5"5"5"1337000 ft-lbs
16314001External GearStandard134.331"118.11"5.512"5"5"2070000 ft-lbs
16303001Internal GearStandard148.425"135.039"4.724"4.134"4.134"1013000 ft-lbs
16304001Internal GearStandard168"151.7"6"5.5"5.5"3003000 ft-lbs
16315001External GearStandard170.079"146.85"6.024"5.512"5.512"4176000 ft-lbs
16291001Without GearStandard178"162"5.5"5"5"2258000 ft-lbs
16316001External GearStandard196.85"173.622"7"6.25"6.25"5210000 ft-lbs
16317001External GearStandard218.268"197.244"5.512"5.039"5.039"3190000 ft-lbs
BB3010Without GearStandard2.165"1.181"0.394"--78 ft-lbs
BB3510Without GearStandard2.362"1.378"0.394"--90 ft-lbs
BB4010Without GearStandard2.559"1.575"0.394"--107 ft-lbs
BB4510Without GearStandard2.756"1.772"0.394"--125 ft-lbs
BB5013Without GearStandard3.15"1.969"0.512"--227 ft-lbs
BB6013Without GearStandard3.543"2.362"0.512"--279 ft-lbs
BB7013Without GearStandard3.937"2.756"0.512"--346 ft-lbs
BB8016Without GearStandard4.724"3.15"0.63"--618 ft-lbs
BB9016Without GearStandard5.118"3.543"0.63"--718 ft-lbs
BB11015Without GearStandard5.709"4.331"0.591"--652 ft-lbs
BB10020Without GearStandard5.906"3.937"0.787"--1102 ft-lbs
BB11020Without GearStandard6.299"4.331"0.787"--1300 ft-lbs
BB12025Without GearStandard7.087"4.724"0.984"--2197 ft-lbs
BB15013Without GearStandard7.087"5.906"0.512"--965 ft-lbs
BB13025Without GearStandard7.48"5.118"0.984"--2412 ft-lbs
BB14025Without GearStandard7.874"5.512"0.984"--2726 ft-lbs
BB15025Without GearStandard8.268"5.906"0.984"--2959 ft-lbs
BB15030Without GearStandard9.055"5.906"1.181"--4475 ft-lbs
BB20025Without GearStandard10.236"7.874"0.984"--4333 ft-lbs
BB20030Without GearStandard11.024"7.874"1.181"--6435 ft-lbs
BB20035Without GearStandard11.614"7.874"1.378"--8529 ft-lbs
BB25025Without GearStandard12.205"9.843"0.984"--5891 ft-lbs
BB25030Without GearStandard12.992"9.843"1.181"--8641 ft-lbs
BB25040Without GearStandard13.976"9.843"1.575"--11489 ft-lbs
BB30025Without GearStandard14.173"11.811"0.984"--7482 ft-lbs
BB30035Without GearStandard15.551"11.811"1.378"--14399 ft-lbs
BB30040Without GearStandard15.945"11.811"1.575"--14576 ft-lbs
BB40035Without GearStandard18.898"15.748"1.378"--20560 ft-lbs
BB40040Without GearStandard20.079"15.748"1.575"--21572 ft-lbs
BB50040Without GearStandard23.622"19.685"1.575"--29099 ft-lbs
BB50050Without GearStandard24.606"19.685"1.969"--30120 ft-lbs
BB60040Without GearStandard27.559"23.622"1.575"--37565 ft-lbs
BB70045Without GearStandard32.087"27.559"1.772"--47062 ft-lbs
BB80070Without GearStandard37.402"31.496"2.756"--86420 ft-lbs
BB90070Without GearStandard41.339"35.433"2.756"--101535 ft-lbs

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Frequently Asked Questions

Expert Insights and Reliable Solutions to Your Most Common Questions.

ZZ Slewing Bearing supplies a full range of slewing bearings to meet different industrial needs:

  • Single row four point contact slewing bearings Application: medium loads, precise rotation.
  • Double row ball bearings  Application: higher radial and axial loads.
  • Cross roller bearings –Application: high rigidity, suitable for robots and machining centers.
  • Three row roller bearings – Application: extreme loads in heavy equipment.
  • Ball combine roller bearings –Application:  precise rotational adjustment applications.
  • Customized bearings – tailored for specific equipment requirements.

Typical selection parameter for ZZ clients:

Load type: axial, radial, and tilting moment.

Rotation RPM: ensures long service life.

Installation space & mounting dimensions: inner/outer ring diameter, bolt circle.

Precision & rigidity requirements: critical for cranes, excavators, and robots.

ZZ engineers provide professional selection guidance according to your equipment and drawings.

ZZ Slewing Bearing selects materials for strength, wear resistance, and long-term durability:

Slewing ring: 42CrMo, 50Mn, C45N, 40CrNiMo, C48E.

Special forging spare parts: carburized/hardened steels for gear teeth (20CrMnTi, 18CrNiMo7‑6).

Corrosion resistant: SS 304, 316L, duplex stainless steel.

Surface treatments: heat treatment, quenching, carburizing, induction hardening, and surface coating(Four-Layer Packing, Strong Anti-Rust Oil, Black Oxide Treatment, Jet Black Paint Finish, Hot-Dip Galvanizing (CGL), Electro-Galvanizing (EGL), Hot-Dip Galvanizing + Paint Finish)

Correct installation with flat surfaces.

Proper lubrication using grease.

Avoid overloading or shock loads over capacity.

Monitor operating conditions regularly to prevent debris entry.

Typical factors observed by ZZ engineers:

  • Insufficient or incorrect lubrication.
  • (dust, metal particles) in raceways.
  • Rolling element or track damage.
  • Uneven mounting surfaces or misalignment.
  • Incorrect bolt torque(below grade 8.8) or preloading.

In-stock: 3–7 days.

Custom: 2–6 weeks depending on size, load, and precision.

Warranty: 1 year

Lifetime Free Spare Parts: Glue, seals, steel ball

Yes — ZZ Slewing Bearing offers:

Detailed installation manuals.

Online engineering support.

Guidance for lubrication, maintenance, and troubleshooting solution.

Full range of materials and heat treatments for various load conditions.

High precision and strict quality inspection standards.

Engineering support before and after delivery.

Customization to exact equipment requirements.

Proven performance in cranes, excavators, robotics, wind turbines, and heavy machinery etc.

ZZ Slewing Bearing (Shanghai) Co., Ltd

Leading Slew Drive & Slewing Bearing Manufacturer in China.

ZZ products are applied globally in solar tracking systems, wind power systems, satellite communications, and numerous other globally connected industries.

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