Slewing Bearings for Rotary Platforms

Application

Application Challenges

Platform Overhang Loads

Fixtures, workpieces and equipment offsets create tilting moments.

Smooth Low-speed Rotation

Platforms often require smooth, controlled motion at low speed.

Drive Integration

Rotary platforms may use motors, reducers, pinions or hydraulic drives.

Large Central Opening

Equipment may require a large bore for cables, piping or process access.

Repeated Positioning

Automated platforms require stable repeatability through many cycles.

Types

Recommended Slewing Bearing Structures

Four-Point Contact Ball Slewing Bearings

Compact structure for axial, radial and tilting moment loads in general industrial rotary equipment.

Double-Row Ball Slewing Bearings

Higher load capacity and larger internal space for applications requiring strong axial and moment support.

Three-Row Roller Slewing Bearings

Very high load capacity for heavy-duty equipment carrying large axial, radial and overturning moment loads.

Crossed Roller Slewing Bearings

High rigidity and rotational accuracy for compact rotary systems with combined loads.

Selection

Selection Information

01

Information Customers Can Provide

Platform type and diameter
Payload and center-of-gravity offset
Axial load, radial load and tilting moment
Continuous or indexing speed
Positioning and runout requirement
Drive type, gear module and torque
Central opening and mounting-hole arrangement
Lubrication, environment, 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

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.

Large Rotating Equipment

Heavy-duty Equipment

Construction Machinery

Port Machinery

CONTACT US

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We typically confirm within 24 hours.

FAQ