+86-635-8509787                        +86-13280450757                            sales@xrbearing.com   

PRODUCT

You are here: Home » Products » Super-Precision Bearings » Hybrid Super Precision Bearings 7900A5SN24TRSUMP4Y With Ceramic Balls

Contact Us

 +86-635-8509787
  +86-13280450757
 sales@xrbearing.com
 Yandian Industrial Zone, Liaocheng City, ShanDong Province. China 
 Skype: brandbearings

loading

Share to:
sharethis sharing button

Hybrid Super Precision Bearings 7900A5SN24TRSUMP4Y With Ceramic Balls

Designation: 7900A5SN24TRSUMP4Y
Type: High Precision Angular Contact Ball Bearings
Interchange: NSK
Dimension: 10*22*6mm
Contact Angle: A5: 25°
Weight: 0.08kg
Application: High Speed Applications
Elements: Ceramic Balls
Availability:
  • 7900A5SN24TRSUMP4Y generator bearings

  • TKW

  • 7900A5SN24TYNSUMP4Y Bearing

  • USD$80

Designation: 7900A5SN24TRSUMP4Y

Type: High Precision Angular Contact Ball Bearings

Interchange: NSK

Dimension: 10*22*6mm

Contact Angle: A5: 25°

Weight: 0.08kg

Application: High Speed Applications

Elements: Ceramic Balls


Abutment and Fillet Dimensions

da(min.) 12.5 mm Diameter of Shaft Abutment
Da(max.) 19.5 mm Diameter of Housing Abutment
Db(max.) 20.8 mm Diameter of Housing Abutment
ra(max.) 0.3 mm Radius of Shaft or Housing Fillet
rb(max.) 0.15 mm Radius of Shaft or Housing Fillet

Performance

Pa 1.71 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)


Preload Axial Rigidity Measured axial clearance
EL 8.5N 26N/μm 2μm
L 16N 32N/μm 1μm
M 59N 53N/μm -3μm
H 103N 66N/μm -6μm


CERAMIC BALLS 

Ceramic hybrid bearings deliver advanced performance  characteristics that can be transformational in machine tools. TKW offers silicon nitride (Si3N4) ceramic balls as a standard option  for angular contact ball bearings to achieve ultra-high machining  speeds, in addition to a considerable array of advantages: 

› Higher rigidity and rotational accuracy, enabling high-accuracy  machining 

› Lower sliding friction in high-speed applications 

› Lower heat generation

› Higher seizure resistance 

› Longer grease life due to low heat generation.


Hybrid ceramic ball bearings, thanks to their unique material properties, have been widely used in a variety of high-tech fields:


-1-  Aerospace


Under high-speed, high-temperature environments, the lightweight (density is only 40% of steel) and high-temperature stability (withstands 1000°C) of silicon nitride ceramic balls significantly improve the reliability and lifespan of aircraft propulsion systems.


-2- New Energy Vehicles


Suitable for motor bearings, their low density reduces centrifugal force and improves speed performance; their insulation properties prevent galvanic corrosion and extend the lifespan of electric drive systems.


-3- Precision Medical Equipment


In MRI equipment, the insulation and low magnetic loss of ceramic balls ensure imaging accuracy; surgical robot joints rely on their high wear resistance to achieve millions of precise movements.


-4- Semiconductors and Vacuum Equipment


Silicon nitride's corrosion resistance and lubrication-free self-lubricating properties make it a key component in vacuum pumps and chip manufacturing equipment.


-5- Wind Power and Industrial Robots


Stable performance remains stable in extreme temperatures (-60°C to 800°C), adapting to the low-temperature environments of wind turbine towers and the high-load scenarios of industrial robots.


-6- High-speed, low-noise equipment


For precision instruments or high-speed motors, optimizing surface precision reduces operating noise while also providing insulation to prevent spark interference.


Extended service life 

TKW hybrid bearings provide superior grease  life, especially in situations with difficult operating conditions. 

Small to medium sized sealed TKW hybrid  deep groove ball bearings are lubricated with  TKW electric motor grease. Tests have shown  that these bearings provide a longer service  life than all-steel bearings. 


What is Hybrid Bearings and Why Hybrid bearings?

Hybrid angular contact ball bearings (designation suffix HC, Or the other suffix) have rings made of bearing steel  and rolling elements made of bearing grade  silicon nitride (ceramic). As ceramic balls are  lighter and have a higher modulus of elasticity  and lower coefficient of thermal expansion  than steel balls, hybrid bearings can provide  the following advantages: 

• higher degree of rigidity 

• higher speed capability  

• reduced centrifugal and inertial forces within the bearing 

• minimized stress at the outer ring rolling  contacts at high speeds 

• reduced frictional heat 

• less energy consumption 

• extended bearing and grease service life 

• less prone to skid smearing damage and cage damage when subject to frequent rapid  starts and stops 

• less sensitive to temperature differences within the bearing 

• more accurate preload/clearance control


Previous: 
Next: 
TKW Focuses On the Development and Manufacturing of General and Non-Standard Rolling bearings
 

Quick Links

Contact Us

 Yandian Industrial zone, Linqing City, Liaocheng,Shandong Province, China,
 +86-635-8509787 / +86-13280450757
 +86-13280450757  
 +86-13280450757
Copyright © 2008-2021 TKW BEARINGS  Technical support :  leadong