Custom Large-Size Slewing Bearings & Drives | 30+ Years Industry Experience

Custom Slew Bearings

Leading Custom Bearing Manufacturer in China

LTZC offers comprehensive, one-stop solutions for slewing bearing systems, covering the entire project lifecycle—from initial operating condition analysis and product selection to custom structural design, precision manufacturing, and delivery, as well as full after-sales support including installation guidance and troubleshooting.

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With over 30 years of industry experience, LTZC has specialized capabilities in customizing slewing bearings. We manufacture four-point contact ball slewing bearings, crossed roller slewing bearings, and three-row cylindrical roller slewing bearings.

To address demanding operating conditions—including heavy loads, corrosive environments, temperature extremes, requirements for dust and water resistance, and low-speed/high-torque applications—we optimize materials heat treatment, gear geometry, sealing, and surface protection processes. This enables us to meet custom requirements for non-standard dimensions, unique load profiles, and harsh environments.

Slew Bearing Customization Scope

Bearing Size: 200mm - 15,000mm Slewing Bearings
Bearing type: Roller slewing bearings, Ball slewing bearings, Precision slewing bearing, Heavy-duty slewing bearings.

Slewing Rings

Slewing bearings adopt 42CrMo as standard. Other suitable materials are available for corrosive or high-wear working conditions.

Bearing Surface Treatment

Standard SA2.5 sandblasting, zinc spraying, and painting. Phosphating, blackening, and hot-dip galvanizing are optional.

Bearing Cage (Nylon)

Nylon cage is standard, featuring lightweight and low-noise performance.

Bearing Cage (Steel)

Steel cage is optional for high-temperature, heavy-load, and shock-load conditions to improve structural strength.

Lubrication & Seal

Pregreased before delivery. Rubber sealing rings are standard. Oil-embedded and labyrinth seals are optional for heavy dust.

Customized Slewing Bearing Samples

LTZC is a premier manufacturer specializing in custom slewing bearings engineered to your exact industrial requirements. With advanced production capabilities and precision grades from P0 to P4, we deliver robust, high-performance solutions tailored for heavy-duty applications. Whether you need specialized dimensions, unique load capacities, or custom gear configurations, our expert engineering team ensures exceptional reliability and precision for your operations.

Heavy-Duty Slewing Ring

Custom engineered bearing for specialized dimensions.

Custom Gear Configuration

Precision machining for unique load profiles.

Custom Three-Row Cylindrical Roller Bearing

Model 131.36.1805.03.0N00.p5

Slewing Gear Ring (OD: 8100 mm)

Customized designed for ball mill, H: 850 mm.

Large Diameter Slewing Bearing for Shield Tunnelling Machines

6825mm Large Diameter Slewing Bearing

High-precision segmented gear ring for Shield Tunnelling Machines.

Extra-Heavy-Duty Slewing Bearing for Cranes

Outer diameter 4000 mm. Four-point contact ball slewing bearing, anti-corrosion black oxide finish.

Custom Slew Bearing Capability

LTZC operates a comprehensive, dedicated production line for the machining and inspection of slewing bearings. Equipped with machinery such as large vertical lathes, precision grinders, and systems for raceway hardening, gear machining, and non-destructive testing, the company manages the entire production process in-house—covering heat treatment, precision machining, assembly, and inspection.

With a monthly capacity of hundreds of units and an annual output exceeding 3,000 units, LTZC handles both high-volume standard orders and small-batch, multi-variety custom projects. Parameters such as dimensions, materials, precision grades, sealing, and lubrication can be flexibly adjusted to meet the operational requirements of industries including construction machinery, offshore engineering, photovoltaics, and tunnel boring. Every unit undergoes a rigorous quality inspection process to ensure product stability, and the company provides a one-stop customization service that spans everything from initial design and manufacturing to delivery and after-sales support.

Steps for Customizing Slewing Bearings

01

Determine Operating Conditions

Confirm parameters such as application, load, rotational speed, environment, and mounting dimensions; verify customer-specified requirements regarding materials, sealing, lubrication, and precision.

02

Bearing Selection

Engineers perform selection and verification, provide drawings and technical specifications, and finalize the product structure.

03

Material Selection

Select steel based on requirements and operating conditions, and perform heat treatment.

04

Precision Manufacturing

Carry out processes such as turning, raceway grinding, gear machining, and cage fabrication.

05

Assembly and Inspection

Perform assembly and pre-lubrication; conduct comprehensive inspections covering dimensions, hardness, and non-destructive testing.

06

Finished Product Delivery

Apply anti-rust packaging and arrange shipments; provide material certification and inspection reports.

07

After-sales Support

Offer installation guidance and address issues arising during on-site use to ensure efficient project implementation.

FAQs on Custom Slewing Bearings

Q1: What types of slewing bearings can LTZC customize?

A: We offer customization for four-point contact ball slewing bearings, crossed roller slewing bearings, and three-row cylindrical roller slewing bearings. Options include gearless, internal gear, and external gear configurations, accommodating a wide range of non-standard dimensions.

Q2: What is the approximate lead time for custom LTZC bearings?

A: Standard custom (non-standard) orders: 20-40 days. For complex orders—such as those involving large diameters, special materials, or anti-corrosion treatments—lead times are calculated individually, and a specific delivery date is provided before the order is placed.

Q3: Do you provide installation guidance and after-sales support for the bearings?

A: For slewing bearings purchased from LTZC, we provide technical guidance on installation and rapid response to issues, along with an after-sales warranty period of 12 to 24 months.

Q4: How do I select the right slewing bearing?

A: Contact the LTZC team and provide your operating parameters; our engineers will perform a load analysis and recommend a suitable model or a customized solution.