Several knowledge points about industrial robot bearings
Industrial Robot Bearing Features
Classification of bearings for industrial robots
Classification |
Type |
Application Site |
Technical Indicators |
Thin section bearing |
Thin Section Radial Contact Ball Bearings、 Thin Section Angular Contact Ball Bearings、 Thin Section Four Point Contact Ball Bearings |
Industrial Robot Waist, Elbow, Wrist |
Accuracy P5, life span more than 6000h |
Crossed Cylindrical Roller Bearings |
Various thin section crossed cylindrical roller bearings |
Industrial robot robotic arm, shoulder, waist, hip |
Accuracy P4, life span more than 6000h |
RV reducer bearings |
A wide range of thin-walled bearings, cylindrical roller cage assemblies |
Widely used in industrial robots |
Accuracy P4, temperature rise does not exceed 30 °C, life span more than 6000h |
Harmonic reducer bearings |
Flexible bearings |
Small and medium torque robot joints |
Accuracy P5 (part of P4), life span more than 6000h |
Key Technologies of Industrial Robot Bearings
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CHG Bearing:Bearings for wind turbinesApr 16, 2024Blade bearings are used to connect blades with hubs in MW wind turbines, and they also can adjust the windward direction of blades to ensure electricity production with power rating and the safe work of wind turbines. Usually, single or double rows four-point contact ball slewing bearings are used as blade bearings, which have preload, special designed seals, anticorrosion surfaces,etc.
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CHG Bearing:The lifespan of bearingsMar 28, 2024The bearing life refers to the number of revolutions or hours experienced by the bearing before the occurrence of pitting under a certain load. The life of rolling bearings is usually defined by the number of revolutions or the number of hours worked at a certain speed. During this lifespan, no initial fatigue damage (such as spalling or defects) should occur on any bearing ring or rolling element.
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Assembly and disassembly of tapered roller bearingsMar 21, 2024Tapered roller bearings can be mounted directly on a tapered shaft or on a cylindrical shaft through an adapter sleeve or withdrawal sleeve. A tight fit is obtained by axially moving the inner ring. The tight fit of the inner ring can be effectively controlled by measuring the reduction in radial clearance caused by the expansion of the inner ring.
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Four row tapered roller bearingsMar 14, 2024It usually consists of two double-row inner rings, a double-row outer ring and two single outer rings. There is an inner spacer ring between the two inner rings, and there are two middle spacer rings between the three outer rings. Such a design The bearing can adjust the clearance to adapt to different working conditions.