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Slewing Bearings for Construction Machinery

CHG provides slewing bearing solutions for excavators, concrete machinery, aerial work platforms and other construction equipment requiring compact rotary support, high moment capacity and reliable operation under shock, dust and outdoor working conditions.

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Application

Application Challenges

High Tilting Moment

Booms, attachments and offset loads create large overturning moments during operation.

Shock & Impact Loads

Digging, braking and sudden load changes create repeated impact loads.

Dust, Mud & Water

Construction sites expose the bearing to dust, mud, water and abrasive contamination.

Frequent Reversing

Upper structures repeatedly accelerate, stop and reverse during work cycles.

Field Maintenance

Equipment requires reliable service and practical inspection under outdoor conditions.

Types

Recommended Slewing Bearing Structures

Selection

Selection Information

01

Information Customers Can Provide

Equipment type and model
Operating weight and rotating mass
Axial load, radial load and tilting moment
Maximum working radius and dynamic load
Rotation speed and duty cycle
Inner/outer gear or gearless requirement
Mounting-hole arrangement and installation dimensions
Seal, grease, drawing, bearing number 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 Construction Machinery FAQ

    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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