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Slewing Bearings for Mining Machinery

CHG provides slewing bearing solutions for stacker reclaimers, bucket wheel excavators, mining excavators and large material-handling equipment exposed to heavy loads, shock, dust, contamination and continuous operation.

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Application

Application Challenges

Heavy Material Loads

Large booms, buckets and conveyed material generate high axial and moment loads

Dust & Abrasive Contamination

Mining dust can enter seals and damage raceways and gears.

Shock & Uneven Loading

Material impact and uneven ground create dynamic and asymmetric loads.

Continuous Operation

Mining systems may run long production cycles with limited downtime.

Outdoor Temperature & Moisture

Remote sites expose equipment to rain, cold, heat and corrosion.

Types

Recommended Slewing Bearing Structures

Selection

Selection Information

01

Information Customers Can Provide

Mining equipment type and model
Boom, bucket or material load
Axial/radial loads and tilting moment
Impact and dynamic load factors
Operating cycles and rotation speed
Dust, water and temperature environment
Gear, sealing and lubrication requirements
Mounting 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 Mining 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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