Double Row Spherical roller bearings

Product Overview

Double-row spherical roller bearings, as key components of industrial transmission systems, play an important role in the field of mechanical engineering with their excellent self-centering characteristics and heavy-load capacity. This type of bearing is particularly suitable for industrial applications with shaft deviation, heavy load and vibration conditions.

Structural design and performance characteristics

Core structure

Outer ring assembly: Spherical raceway design is adopted, and the curvature radius coincides with the rotation center of the bearing

Inner ring assembly: Double-row independent arc raceway is configured, which is integrated with the solid inner ring

Rolling system: Precision drum rollers are matched with high-strength cages to ensure stable operation

Functional characteristics

Automatic centering mechanism: The unique outer ring spherical design allows ±2° automatic centering angle, which effectively compensates for installation deviation and shaft deformation

Load characteristics

Radial load capacity is increased by 40-60% compared with single-row bearings

Axial load bearing capacity can reach 25% of the radial rating

Dynamic performance: Optimized roller profile design reduces edge stress and prolongs fatigue life

Environmental adaptability: Special seal design is optional, suitable for harsh working conditions such as dust and moisture

Common brands

SKF Roller Bearings Double-row spherical roller bearings
NSK Double-row spherical roller bearings
FAG Double-row spherical roller bearings
INA Double-row spherical roller bearings
TIMKEN Double-row spherical roller bearings
NACHI Double-row spherical roller bearings
KOYO Double-row spherical roller bearings
NTN Double-row spherical roller bearings

Technical parameter selection guide

Typical specification parameter comparison table

Industrial application field

Heavy industry field

Metallurgical equipment: hot rolling mill work roll bearing seat, continuous casting machine fan-shaped segment

Mining machinery: gyratory crusher main shaft support, vibrating feeder vibration part

Process industry

Papermaking equipment: Yankee dryer bearing group, calender roller system support

Chemical machinery: large reactor stirring shaft support

Power transmission system

Gear transmission: heavy-duty reduction box output stage support

Ship propulsion: propeller shaft intermediate support bearing

Other special applications

Wind power generation: yaw pitch bearing auxiliary support

Engineering machinery: shield machine cutter drive support

Use and maintenance specifications

Selection principle

Load analysis: distinguish between constant load/impact load conditions

Speed ​​matching: select the cage type with reference to the dmN value

Installation conditions: evaluate the shaft alignment accuracy requirements

Environmental factors: consider parameters such as temperature and contamination

Maintenance points

Lubrication management:

Grease lubrication: NLGI 2#-3# grease, replenishment cycle 2000-5000h

Oil lubrication: ISO VG68-150, oil level monitoring requirements

Condition monitoring:

Vibration value monitoring: ISO 10816 standard reference

Temperature monitoring: alarm threshold 85℃

Failure prevention:

Regularly check seal integrity

Monitor lubricant contamination

Record operating parameter change trends

This product optimizes internal geometric parameters and material processes, significantly improving load-bearing capacity and service life while maintaining self-aligning performance, making it an ideal choice for heavy-duty industrial equipment. For specific application recommendations, please consult professional technical engineers.

Please see the 구면 롤러 베어링 Catalog for more information!