Product Details

Specification

The Kaydon Eight Point Contact Ball Slewing Ring Bearing is designed to handle both radial and axial loads, providing high load capacity and stability. Its unique eight-point contact system evenly distributes forces, enhancing durability, precision, and smooth rotational movement. These bearings are ideal for applications that require high performance and reliability, such as heavy machinery, cranes, solar tracking systems, wind turbines, and aerospace equipment. The design ensures minimal friction and extended service life, making them well-suited for demanding environments. Kaydon’s slewing rings offer customizable options in size, gear configuration, and coatings, catering to specific operational needs and conditions.

Part Number	Gear	Bearing Type	Do	di	H	Ho	Hi	Di	do	Dr	C0a	Moment Load Rating
16258001	External Gear	Standard	17.086"	10.25"	3.313"	3"	3"	-	-	17.086"	-	65200 ft-lbs
16282001	Without Gear	Standard	20.375"	12.25"	4.5"	4.185"	4.185"	-	-	-	-	102500 ft-lbs
16283001	Without Gear	Standard	29.75"	18.62"	7"	6.551"	6.551"	-	-	-	-	363100 ft-lbs
16284001	Without Gear	Standard	41.417"	30.236"	7.48"	6.89"	6.89"	-	-	-	-	734800 ft-lbs
16264001	External Gear	Standard	50.016"	38.504"	5.512"	4.567"	4.567"	-	-	48.425"	-	970400 ft-lbs
16265001	External Gear	Standard	56.24"	41.37"	7.125"	6.688"	6.688"	-	-	54.675"	-	2132100 ft-lbs
16015001	Without Gear	Standard	56.25"	43.75"	6.75"	6.38"	6.38"	-	-	-	-	2083600 ft-lbs
16274001	Internal Gear	Standard	56.693"	43.661"	5.472"	5.118"	5.118"	-	-	-	-	1225400 ft-lbs
16275001	Internal Gear	Standard	66"	47.6"	8"	7.625"	7.625"	-	-	-	-	3921100 ft-lbs
16266001	External Gear	Standard	68.8"	51.25"	7.375"	7"	7"	-	-	68.8"	-	3470900 ft-lbs
16276001	Internal Gear	Standard	70.5"	50.2"	8.625"	8.312"	8.312"	-	-	-	-	4863400 ft-lbs
16267001	External Gear	Standard	75.394"	58.5"	6.11"	5.75"	5.75"	-	-	73.307"	-	3335700 ft-lbs
16285001	Without Gear	Standard	75.75"	59.75"	8.75"	8.375"	8.375"	-	-	-	-	2934900 ft-lbs
16277001	Internal Gear	Standard	81.89"	65.248"	5.591"	5.197"	5.197"	-	-	-	-	2534900 ft-lbs
16268001	External Gear	Standard	89.181"	71.4"	7.09"	6.73"	6.73"	-	-	96.566"	-	4793200 ft-lbs
16278001	Internal Gear	Standard	94.173"	77.008"	7.126"	6.732"	6.732"	-	-	-	-	3896200 ft-lbs
16269001	External Gear	Standard	94.742"	72.25"	9.125"	8.75"	8.75"	-	-	92.5"	-	8669000 ft-lbs
16270001	External Gear	Standard	102.992"	84.134"	7.205"	6.654"	6.654"	-	-	99.331"	-	3658500 ft-lbs
16279001	Internal Gear	Standard	109.375"	87.17"	9.312"	8"	8"	-	-	-	-	9075400 ft-lbs
16280001	Internal Gear	Standard	121"	98.4"	8.75"	8.438"	8.438"	-	-	-	-	8751800 ft-lbs
16271001	External Gear	Standard	124.8"	98.375"	11.25"	10.75"	10.75"	-	-	124.8"	-	14639200 ft-lbs
16286001	Without Gear	Standard	131"	114"	8"	7.5"	7.5"	-	-	-	-	5666800 ft-lbs
16281001	Internal Gear	Standard	141"	114.941"	11.18"	10.43"	10.43"	-	-	-	-	12625000 ft-lbs
16272001	External Gear	Standard	143.8"	114"	11.062"	10.437"	10.437"	-	-	143.8"	-	18293300 ft-lbs
13004001	Without Gear	Standard	170"	150"	9.875"	9.25"	9.25"	-	-	-	-	8098000 ft-lbs
16273001	External Gear	Standard	180"	150"	10.625"	10"	10"	-	-	175.25"	-	18000000 ft-lbs

Frequently Asked Questions

Expert Insights and Reliable Solutions to Your Most Common Questions.

1. What types of slewing bearings does ZZ Slewing Bearing provide?

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.

2. How do I choose the right bearing for my application?

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.

3. What materials does ZZ Slewing Bearing use for slewing bearings?

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)

4. How can ZZ Slewing Bearing achieve maximum service life?

Correct installation with flat surfaces.

Proper lubrication using grease.

Avoid overloading or shock loads over capacity.

Monitor operating conditions regularly to prevent debris entry.

5. What causes abnormal noise or vibration in bearings?

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.

6. What are lead times and lifetime guarantee?

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

7. Does ZZ provide installation and technical support?

Yes — ZZ Slewing Bearing offers:

Detailed installation manuals.

Online engineering support.

Guidance for lubrication, maintenance, and troubleshooting solution.

8. How do ZZ Slewing Bearing differ from competitors?

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.