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1194740
YASSIAN or Your's
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Characteristics of deep groove ball bearings
Deep groove ball bearings, as the most widely used type of rolling bearings, have the following core characteristics and performance boundaries:
I. Characteristics of Infrastructure
Youdaoplaceholder0 simple and efficient construction
It is a standardized structure composed of inner ring, outer ring, steel balls and cage, with high manufacturing precision and easy mass production, and the manufacturing cost is significantly lower than that of other bearing types .
Youdaoplaceholder0 Rolling element design : Steel balls are matched with arc-shaped deep groove raceways, with an extremely small friction coefficient (usually ≤0.002), supporting high-speed rotation
Adaptive load capacity
Youdaoplaceholder0 Radial load dominant : mainly bears radial loads, accounting for more than 70% of the designed load-bearing capacity. The curvature radius of the channel is slightly larger than that of the steel ball to optimize the stress distribution .
Youdaoplaceholder0 Combined load compatibility : When the radial clearance is increased, a contact Angle can be formed, which possesses the characteristics of angular contact bearings and can withstand combined radial and axial loads . It can even replace thrust bearings to bear pure axial loads (the ultimate axial load is approximately 20%-30% of the radial load) .
Ii. Performance Advantages and Limits
Youdaoplaceholder0 high-speed and low-noise characteristics
The maximum rotational speed can reach 85,000 r/min (for oil lubrication), and the typical value in grease lubrication scenarios is 7,200 r/min (such as model 6210) ;
Vibration and noise control is at the lowest level in the industry, suitable for low-interference scenarios such as precision instruments and motors .
Youdaoplaceholder0 fine-tuning the mind ability
The relative inclination between the shaft and the housing hole is allowed to be ≤0.3° (2 'to 10') . Installation errors are automatically compensated, but excessive inclination will accelerate the attenuation of service life
Extended function model
Youdaoplaceholder0 Stop groove design (N/NR type) : Omitting axial positioning components, reducing installation space ;
Youdaoplaceholder0 High-temperature deformation : Special heat treatment processes support 350°C operating conditions (such as SKF high-temperature series) ;
Youdaoplaceholder0 ceramic ball bearing : silicon nitride balls reduce density and increase the maximum speed by another 20% .
Iv. Application Scenarios and Taboos
Youdaoplaceholder0 adapted domain :
Medium and high-speed light-load equipment such as small-power motors, automotive gearboxes, and machine tool gearboxes;
Youdaoplaceholder0 performance shortcoming :
Weak impact resistance, prone to plastic deformation under heavy load conditions (e.g. prohibited for mining machinery) ;
The axial load-bearing capacity is limited. For pure axial loads, the equivalent load must be strictly calibrated
Youdaoplaceholder0 Selection tip : For dusty environments, 2RS sealing type is preferred. In high-temperature scenarios, special grease (-40℃ to +120℃) should be matched
v
Characteristics of deep groove ball bearings
Deep groove ball bearings, as the most widely used type of rolling bearings, have the following core characteristics and performance boundaries:
I. Characteristics of Infrastructure
Youdaoplaceholder0 simple and efficient construction
It is a standardized structure composed of inner ring, outer ring, steel balls and cage, with high manufacturing precision and easy mass production, and the manufacturing cost is significantly lower than that of other bearing types .
Youdaoplaceholder0 Rolling element design : Steel balls are matched with arc-shaped deep groove raceways, with an extremely small friction coefficient (usually ≤0.002), supporting high-speed rotation
Adaptive load capacity
Youdaoplaceholder0 Radial load dominant : mainly bears radial loads, accounting for more than 70% of the designed load-bearing capacity. The curvature radius of the channel is slightly larger than that of the steel ball to optimize the stress distribution .
Youdaoplaceholder0 Combined load compatibility : When the radial clearance is increased, a contact Angle can be formed, which possesses the characteristics of angular contact bearings and can withstand combined radial and axial loads . It can even replace thrust bearings to bear pure axial loads (the ultimate axial load is approximately 20%-30% of the radial load) .
Ii. Performance Advantages and Limits
Youdaoplaceholder0 high-speed and low-noise characteristics
The maximum rotational speed can reach 85,000 r/min (for oil lubrication), and the typical value in grease lubrication scenarios is 7,200 r/min (such as model 6210) ;
Vibration and noise control is at the lowest level in the industry, suitable for low-interference scenarios such as precision instruments and motors .
Youdaoplaceholder0 fine-tuning the mind ability
The relative inclination between the shaft and the housing hole is allowed to be ≤0.3° (2 'to 10') . Installation errors are automatically compensated, but excessive inclination will accelerate the attenuation of service life
Extended function model
Youdaoplaceholder0 Stop groove design (N/NR type) : Omitting axial positioning components, reducing installation space ;
Youdaoplaceholder0 High-temperature deformation : Special heat treatment processes support 350°C operating conditions (such as SKF high-temperature series) ;
Youdaoplaceholder0 ceramic ball bearing : silicon nitride balls reduce density and increase the maximum speed by another 20% .
Iv. Application Scenarios and Taboos
Youdaoplaceholder0 adapted domain :
Medium and high-speed light-load equipment such as small-power motors, automotive gearboxes, and machine tool gearboxes;
Youdaoplaceholder0 performance shortcoming :
Weak impact resistance, prone to plastic deformation under heavy load conditions (e.g. prohibited for mining machinery) ;
The axial load-bearing capacity is limited. For pure axial loads, the equivalent load must be strictly calibrated
Youdaoplaceholder0 Selection tip : For dusty environments, 2RS sealing type is preferred. In high-temperature scenarios, special grease (-40℃ to +120℃) should be matched
