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Slewing Bearings for Port Machinery

CHG provides slewing bearing solutions for harbor cranes, ship loaders, unloaders, container handling equipment and port rotary machinery operating under heavy loads, wind, salt spray, moisture and continuous duty.

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Application

Application Challenges

Wind & Dynamic Loads

Boom structures and moving cargo generate large moments combined with wind loads.

Salt Spray & Moisture

Marine atmospheres accelerate corrosion of rings, gears and mounting surfaces.

Continuous Handling Cycles

Port equipment operates through frequent slewing, braking and reversing.

Heavy Cargo Loads

Bulk and container handling creates high axial and moment loads.

Maintenance Access

Large port equipment requires planned inspection and long relubrication intervals.

Types

Recommended Slewing Bearing Structures

Selection

Selection Information

01

Information Customers Can Provide

Port equipment type and duty class
Rated load, outreach and rotating mass
Axial/radial loads, tilting moment and wind load
Rotation speed and working cycles
Marine corrosion and coating requirements
Gear type, module and backlash
Seal and lubrication arrangement
Mounting dimensions, drawing and quantity

02

CHG Assessable Content

Suitable slewing bearing structure
Static and dynamic load capacity
Raceway diameter, ring size and central opening
Gear type, module, accuracy and backlash
Mounting-hole and bolt-load requirements
Material, heat treatment and hardness
Sealing, lubrication and corrosion protection
Technical proposal, drawing review, quotation and delivery

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ADVANTAGES

Why Choose CHG

Four Main Structure Options

CHG provides four-point contact ball, double-row ball, three-row roller and crossed roller slewing bearing solutions.

Application & Load Review

Bearing structure can be reviewed according to axial load, radial load, tilting moment, dynamic factors, speed and duty cycle.

Custom Manufacturing

Custom support by drawing, dimensions, gear type, bolt-hole arrangement, sealing, lubrication and application requirements.

Quality & Inspection Support

Material certificates, heat treatment records, dimensional inspection, gear inspection and product photos can be provided according to order requirements.

Related

Related Applications

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    FAQ

    Slewing Bearings for Port Machinery FAQs

    Please provide the equipment type, bearing number or mounting dimensions, axial load, radial load, tilting moment, speed, gear type, quantity and drawing if available.

    CHG provides four-point contact ball, double-row ball, three-row roller and crossed roller slewing bearing solutions.

    Yes. Internal gear, external gear or gearless structures, gear module, tooth number, bolt-hole pattern, seals and lubrication can be customized.

    Yes. Custom and replacement solutions can be reviewed according to 2D/3D drawings, bearing numbers, dimensions, gear data and application conditions.

    Material certificates, heat treatment records, dimensional inspection, raceway/gear inspection, product photos and packing photos can be provided according to order requirements.

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