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Help CenterRks. 162.14.0414 Internal Gear Cross Roller Slewing Bearing Dia 484*325*56mm
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Single row cross roller slewing bearing
Composed of two or three rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.
Technical Specifications
• Bearing Type: Single-row crossed roller bearing with integral external gear
• Gear Configuration: Spur gear with 20° pressure angle (standard)
• Load Capacity:
Dynamic axial load: Up to 600 kN (size dependent)
Moment stiffness: 15-30 kNm/mrad
• Accuracy Class: ABEC 3/P4 standard
• Gear Specifications:Module range: 4-12 mm
Tooth hardness: 58-62 HRC (case hardened)
Gear accuracy: DIN 6-7 standard
Design Features
Integrated Gear-Bearing System:
Monolithic construction with gear teeth machined on outer ring
Precision ground tooth profile for smooth power transmission
Eliminates alignment issues in gear meshing
Crossed Roller Arrangement:
Alternating 90° roller orientation
Precisely controlled roller spacing
Optimized contact geometry for load distribution
Advanced Surface Treatments:
Raceway superfinishing (Ra ≤ 0.05μm)
Optional gear tooth coatings (DLC, WS2 available)
Corrosion-resistant variants (Dacromet, Zn-Ni)
Performance Characteristics
• Rotational Accuracy: • Friction Performance:
Starting torque: 1-5 Nm (size dependent)
Running friction coefficient: 0.001-0.002
• Stiffness Properties:Axial stiffness: 800-2500 N/μm
Radial stiffness: 500-2000 N/μm
Material Specifications
• Base Material: SAE 52100 equivalent steel
• Gear Tooth Material: Case-hardened bearing steel (58-62 HRC)
• Special Options:
Stainless steel variants (440C)
Custom material solutions
Configuration Options
• Sealing Solutions:
Triple-lip contact seals (standard)
Labyrinth seals (high-speed versions)
• Lubrication Systems:Grease lubrication (standard)
Oil circulation options
Centralized lubrication provisions
Technical Benefits
• System Integration Advantages:
30% space reduction compared to separate bearing/gear assemblies
Simplified mounting and alignment
• Load Capacity Improvements:40% higher moment capacity than standard designs
Uniform load distribution across rollers
• Maintenance Features:50% fewer lubrication points
Easy inspection access to gear teeth
Application Examples
• Heavy-duty industrial applications:
Rotary transfer machines
Large indexing tables
• Precision equipment:Radar antenna drives
Telescope positioning systems
• Special applications:Offshore equipment positioning
Engineering Data Available
• Complete load rating tables
• Gear tooth strength calculations
• Fatigue life estimations
• Mounting surface specifications
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