Product Details

Four Point Contact Ball Slewing Ring Bearing

ZZ Slewing Bearings are a high-performance, cost-effective alternative to IMO Four Point Contact Ball Slewing Ring Bearings, offering superior quality and reliability. Made from high-strength materials, ZZ bearings provide exceptional durability, wear resistance, and long service life. Their precision design ensures smooth operation, low friction, and efficient load distribution for radial, axial, and moment loads. ZZ bearings offer greater load capacity, flexibility in customization, and seamless interchangeability with IMO bearings. This combination of reliability, performance, and cost-efficiency makes ZZ an ideal choice for heavy-duty machinery and demanding industrial applications.

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Specification

ZZ Slewing Bearings offer unmatched quality and are the perfect alternative to IMO Four Point Contact Ball Slewing Ring Bearings. They feature superior material quality, precision engineering, and enhanced load capacity, ensuring durability and efficient performance. ZZ bearings handle radial, axial, and moment loads, making them ideal for heavy-duty machinery. With flexible design options and seamless compatibility with IMO bearings, ZZ provides a cost-effective solution without compromising on performance. Reliable and long-lasting, ZZ slewing bearings reduce downtime and maintenance costs, making them the ideal choice for demanding applications.

Part NumberGearBearing TypeDodiHHoHiDidoDrC0aMoment Load RatingAxial LoadTilting Moment
10-16 0100/0-08000Without GearStandard7.087"1.575"1.378"1.181"1.181"4.055"3.819"-----
11-16 0100/1-08100External GearStandard7.087"1.575"1.378"1.181"1.181"4.055"3.819"-23155 lbs---
10-16 0200/0-08010Without GearStandard11.024"5.512"1.378"1.181"1.181"7.992"7.756"-46535 lbs---
11-16 0200/1-08110External GearStandard11.024"5.512"1.378"1.181"1.181"7.992"7.756"-46535 lbs---
10-16 0300/0-08020Without GearStandard14.961"9.449"1.378"1.181"1.181"11.929"11.693"-69691 lbs---
11-16 0300/1-08120External GearStandard14.961"9.449"1.378"1.181"1.181"11.929"11.693"-69691 lbs---
91-20 0311/1-37102External GearFlanged15.9"8.031"2.205"1.732"1.732"12.421"12.303"-46760 lbs---
90-20 0311/0-37002Without GearFlanged16.457"8.031"2.205"1.732"1.732"12.421"12.303"13.898"46760 lbs---
92-20 0311/1-37202Internal GearFlanged16.457"8.35"2.205"1.732"1.732"12.421"12.303"13.898"46760 lbs---
10-20 0311/0-32002Without GearStandard17"7.5"2.205"1.732"1.732"12.421"12.303"-100714 lbs---
12-20 0311/1-32202Internal GearStandard17"8.35"2.205"1.732"1.732"12.421"12.303"-100714 lbs---
10-16 0400/0-08030Without GearStandard18.898"13.386"1.378"1.181"1.181"15.866"15.63"-93071 lbs---
11-16 0400/1-08130External GearStandard18.898"13.386"1.378"1.181"1.181"15.866"15.63"-93071 lbs---
91-20 0413/1-37112External GearFlanged19.9"11.969"2.205"1.732"1.732"16.437"16.319"-61822 lbs---
11-20 0413/1-32112External GearStandard19.9"12"2.205"1.732"1.732"16.437"16.319"-133087 lbs---
90-20 0413/0-37012Without GearFlanged20.394"11.969"2.205"1.732"1.732"16.437"16.319"17.835"61822 lbs---
92-20 0413/1-37212Internal GearFlanged20.394"12.85"2.205"1.732"1.732"16.437"16.319"17.835"61822 lbs---
10-20 0413/0-32012Without GearStandard20.4"12"2.205"1.732"1.732"16.437"16.319"-133087 lbs---
12-20 0413/1-32212Internal GearStandard20.4"12.85"2.205"1.732"1.732"16.437"16.319"-133087 lbs---
12-25 0455/1-04210Internal GearStandard21.85"11.969"3.15"2.126"2.795"17.992"17.835"-272693 lbs---
10-25 0455/0-04010Without GearStandard21.85"13.976"3.15"2.125"2.125"17.992"17.835"-272693 lbs---
10-16 0500/0-08040Without GearStandard22.835"17.323"1.378"1.181"1.181"19.803"19.567"-116226 lbs---
11-16 0500/1-08140External GearStandard22.835"17.323"1.378"1.181"1.181"19.803"19.567"-116226 lbs---
11-25 0455/1-04110External GearStandard23.244"13.976"3.15"2.795"2.126"17.992"17.835"-272693 lbs---
11-20 0541/1-32122External GearStandard25.15"17"2.205"1.732"1.732"21.476"21.358"-175351 lbs---
91-20 0541/1-37122External GearFlanged25.15"17.087"2.205"1.732"1.732"21.476"21.358"-81381 lbs---
10-20 0541/0-32022Without GearStandard25.5"17"2.205"1.732"1.732"21.476"21.358"-175351 lbs---
12-20 0541/1-32222Internal GearStandard25.5"17.6"2.205"1.732"1.732"21.476"21.358"-175351 lbs---
90-20 0541/0-37022Without GearFlanged25.512"17.087"2.205"1.732"1.732"21.476"21.358"22.953"81381 lbs---
92-20 0541/1-37222Internal GearFlanged25.512"17.6"2.205"1.732"1.732"21.476"21.358"22.953"81381 lbs---
12-25 0555/1-04220Internal GearStandard25.787"16.378"3.15"2.126"2.795"21.929"21.772"-332717 lbs---
10-25 0555/0-04020Without GearStandard25.787"17.913"3.15"2.125"2.125"21.929"21.772"-332717 lbs---
11-25 0555/1-04120External GearStandard27.339"17.913"3.15"2.795"2.126"21.929"21.772"-332717 lbs---
11-20 0641/1-32132External GearStandard29.15"21"2.205"1.732"1.732"25.413"25.295"-207723 lbs---
91-20 0641/1-37132External GearFlanged29.15"21.024"2.205"1.732"1.732"25.413"25.295"-96443 lbs---
90-20 0641/0-37032Without GearFlanged29.449"21.024"2.205"1.732"1.732"25.413"25.296"26.89"96443 lbs---
92-20 0641/1-37232Internal GearFlanged29.449"21.6"2.205"1.732"1.732"25.413"25.295"26.89"96443 lbs---
10-20 0641/0-32032Without GearStandard29.5"21"2.205"1.732"1.732"25.413"25.295"-207723 lbs---
12-20 0641/1-32232Internal GearStandard29.5"21.6"2.205"1.732"1.732"25.413"25.295"-207723 lbs---
12-25 0655/1-04230Internal GearStandard29.724"20.157"3.15"2.126"2.795"25.866"25.709"-392516 lbs---
10-25 0655/0-04030Without GearStandard29.724"21.85"3.15"2.125"2.125"25.866"25.709"-392516 lbs---
11-25 0655/1-04130External GearStandard31.433"21.85"3.15"2.795"2.126"25.866"25.709"-392516 lbs---
91-20 0741/1-37142External GearFlanged32.9"24.961"2.205"1.732"1.732"29.35"29.232"-111505 lbs---
11-20 0741/1-32142External GearStandard32.9"25"2.205"1.732"1.732"29.35"29.232"-240043 lbs---
90-20 0741/0-37042Without GearFlanged33.386"24.961"2.205"1.732"1.732"29.35"29.232"30.827"111505 lbs---
92-20 0741/1-37242Internal GearFlanged33.386"25.6"2.205"1.732"1.732"29.35"29.232"30.827"111505 lbs---
10-20 0741/0-32042Without GearStandard33.4"25"2.205"1.732"1.732"29.35"29.232"-240096 lbs---
12-20 0741/1-32242Internal GearStandard33.4"25.6"2.205"1.732"1.732"29.35"29.232"-240043 lbs---
12-25 0755/1-04240Internal GearStandard33.661"24.016"3.15"2.126"2.795"29.803"29.646"-452540 lbs---
10-25 0755/0-04040Without GearStandard33.661"25.787"3.15"2.125"2.125"29.803"29.646"-452540 lbs---
11-25 0755/1-04140External GearStandard35.354"25.787"3.15"2.795"2.126"29.803"29.646"-452540 lbs---
11-20 0841/1-32152External GearStandard37.2"28.83"2.205"1.732"1.732"33.287"33.169"-272468 lbs---
91-20 0841/1-37152External GearFlanged37.2"28.898"2.205"1.732"1.732"33.287"33.169"-126567 lbs---
90-20 0841/0-37052Without GearFlanged37.323"28.898"2.205"1.732"1.732"33.287"33.169"34.764"126567 lbs---
92-20 0841/1-37252Internal GearFlanged37.323"29.133"2.205"1.732"1.732"33.287"33.169"34.764"126567 lbs---
10-20 0841/0-32052Without GearStandard37.4"28.83"2.205"1.732"1.732"33.287"33.169"-272468 lbs---
12-20 0841/1-32252Internal GearStandard37.4"29.133"2.205"1.732"1.732"33.287"33.169"-272468 lbs---
12-25 0855/1-03210Internal GearStandard37.598"27.953"3.15"2.126"2.795"33.74"33.583"-512564 lbs---
10-25 0855/0-03010Without GearStandard37.598"29.724"3.15"2.125"2.125"33.74"33.583"-512564 lbs---
11-25 0855/1-03110External GearStandard39.252"29.724"3.15"2.795"2.126"33.74"33.583"-512564 lbs---
11-20 0941/1-32162External GearStandard41.2"32.83"2.205"1.732"1.732"37.224"37.106"-304841 lbs---
91-20 0941/1-37162External GearFlanged41.2"32.835"2.205"1.732"1.732"37.224"37.106"-141630 lbs---
10-20 0941/0-32062Without GearStandard41.25"32.83"2.205"1.732"1.732"37.224"37.106"-304841 lbs---
12-20 0941/1-32262Internal GearStandard41.25"33.133"2.205"1.732"1.732"37.224"37.106"-304841 lbs---
90-20 0941/0-37062Without GearFlanged41.26"32.835"2.205"1.732"1.732"37.224"37.106"38.701"141630 lbs---
92-20 0941/1-37262Internal GearFlanged41.26"33.133"2.205"1.732"1.732"37.224"37.106"38.701"141630 lbs---
12-25 0955/1-03220Internal GearStandard41.535"31.89"3.15"2.126"2.795"37.677"37.52"-572364 lbs---
10-25 0955/0-03020Without GearStandard41.535"33.661"3.15"2.125"2.125"37.677"37.52"-572364 lbs---
11-25 0955/1-03120External GearStandard43.15"33.661"3.15"2.795"2.126"37.677"37.52"-572364 lbs---
12-25 1055/1-03230Internal GearStandard45.472"35.827"3.15"2.126"2.795"41.614"41.457"-632388 lbs---
10-25 1055/0-03030Without GearStandard45.472"37.598"3.15"2.125"2.125"41.614"41.457"-632388 lbs---
91-20 1091/1-37172External GearFlanged46.867"38.74"2.205"1.732"1.732"43.13"43.102"-164111 lbs---
11-20 1091/1-32172External GearStandard46.867"38.75"2.205"1.732"1.732"43.13"43.012"-353400 lbs---
11-25 1055/1-03130External GearStandard47.165"37.598"3.15"2.795"2.126"41.614"41.457"-632388 lbs---
90-20 1091/0-37072Without GearFlanged47.165"38.74"2.205"1.732"1.732"43.13"43.012"44.606"164111 lbs---
92-20 1091/1-37272Internal GearFlanged47.165"39.133"2.205"1.732"1.732"43.13"43.012"44.606"164111 lbs---
10-20 1091/0-32072Without GearStandard47.18"38.75"2.205"1.732"1.732"43.13"43.012"-353400 lbs---
12-20 1091/1-32272Internal GearStandard47.18"39.133"2.205"1.732"1.732"43.13"43.012"-353400 lbs---
12-25 1155/1-03240Internal GearStandard49.409"39.764"3.15"2.126"2.795"45.551"45.394"-692412 lbs---
10-25 1155/0-03040Without GearStandard49.409"41.535"3.15"2.125"2.125"45.551"45.394"-692412 lbs---
11-25 1155/1-03140External GearStandard51.102"41.535"3.15"2.795"2.126"45.551"45.394"-692412 lbs---
12-25 1255/1-03250Internal GearStandard53.346"43.701"3.15"2.126"2.795"49.488"49.331"-752211 lbs---
10-25 1255/0-03050Without GearStandard53.346"45.472"3.15"2.125"2.125"49.488"49.331"-752211 lbs---
11-25 1255/1-03150External GearStandard55.039"45.472"3.15"2.795"2.126"49.488"49.331"-752211 lbs---
12-25 1355/1-03260Internal GearStandard57.283"47.638"3.15"2.126"2.795"53.425"53.268"-812235 lbs---
10-25 1355/0-03060Without GearStandard57.283"49.909"3.15"2.125"2.125"53.425"53.268"-812235 lbs---
11-25 1355/1-03160External GearStandard58.976"49.409"3.15"2.795"2.126"53.425"53.268"-812235 lbs---
12-25 1455/1-03270Internal GearStandard61.22"51.575"3.15"2.126"2.795"57.362"57.205"-872034 lbs---
10-25 1455/0-03070Without GearStandard61.22"53.346"3.15"2.125"2.125"57.362"57.205"-872034 lbs---
11-25 1455/1-03170External GearStandard62.913"53.346"3.15"2.795"2.126"57.362"57.205"-872034 lbs---
12-50 1800/2-06500Internal GearStandard77.598"61.181"4.291"3.898"3.937"70.787"70.945"-1893566 lbs---
11-50 1900/2-06400External GearStandard84.22"68.071"4.291"3.937"3.898"74.724"74.882"-1998776 lbs---
12-50 2000/2-06510Internal GearStandard85.472"69.449"4.291"3.898"3.937"78.661"78.819"-2103987 lbs---
11-50 2130/2-06410External GearStandard93.732"77.126"4.291"3.937"3.898"83.78"83.937"-2240896 lbs---
12-50 2240/2-06520Internal GearStandard94.921"78.11"4.291"3.898"3.937"88.11"88.268"-2356447 lbs---
11-50 2355/2-06420External GearStandard102.551"85.984"4.291"3.937"3.898"92.638"92.795"-2477395 lbs---
12-50 2490/2-06530Internal GearStandard104.764"88.189"4.291"3.898"3.937"97.953"98.11"-2619474 lbs---
11-50 2645/2-06430External GearStandard113.89"97.402"4.291"3.937"3.898"104.055"104.213"-2782585 lbs---
12-50 2800/2-06540Internal GearStandard116.969"100.157"4.291"3.898"3.937"110.157"110.315"-2945672 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.

Industries

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Port Machine

Welding Machine

CSP Tracking

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