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Silicon Nitride Ceramic Ball Bearing

Silicon Nitride Ceramic Ball Bearing

Silicon nitride ceramic ball bearing is also known as silicon nitride hybrid bearing,

the rolling element is silicon nitride ceramic balls, inner ring and outer ring is metal.

The structure is the same as metal bearings.

Description

Silicon Nitride Ceramic Ball Bearings: Revolutionizing Precision in Machinery

Silicon nitride ceramic ball bearings, also referred to as silicon nitride hybrid bearings, encompass a groundbreaking fusion of silicon nitride ceramic balls within metal inner and outer rings. This innovative structure mirrors traditional metal bearings, yet it introduces an array of unparalleled advantages that redefine performance and endurance across various industries.

Unveiling the Material Diversity

The essence lies in the material composition. Diverse ferrule options such as ball bearing steel and stainless steel converge with the exceptional ceramic possibilities of silicon nitride. This amalgamation yields a transformative synergy, elevating the bearings to a league of their own.

Precision Beyond Conventional Standards

Embracing precision levels ranging from P0 to P4, these bearings set a new benchmark for accuracy, ensuring reliability and consistency in operations.

Extensive Size Range Catering to Versatility

With a size range spanning from a minimum inner diameter of 3mm to a maximum outer diameter of 250mm, these bearings offer unparalleled adaptability across a spectrum of applications.

Expansive Model Varieties for Diverse Needs

Boasting a repository of over 3000 distinct models, our collection caters comprehensively to metric and imperial needs. From deep groove ball bearings to self-aligning and angular contact bearings, we provide a panoramic array to suit multifaceted requirements. Additionally, our range includes variations in structures—open, seal ring, and dust cover—to address specific environmental needs.

Tailored Solutions for Varied Working Conditions

Recognizing the diversity in operational landscapes, we specialize in customizing non-standard bearings, meticulously designed and manufactured to seamlessly integrate with distinct working conditions.

Versatile Holder Selection for Optimal Performance

Our bearings offer a choice of holders—from NYLON, PTFE, PEEK to stainless steel, copper, or crowning ball—ensuring adaptability and superior performance in diverse scenarios.

Unmatched Performance Advantages

  • Enhanced Speed Limits: Leveraging the lighter nature of silicon nitride compared to steel, these bearings mitigate centrifugal force, thereby elevating speed limits while maintaining precision.

  • Precision Redefined: With superior hardness and young modulus, ceramics exhibit minimal mechanical deformation under heavy loads, making them ideal for high-precision applications.

  • Extended Service Life: Boasting a service life up to five times longer than steel bearings, ceramic's lightweight nature and reduced roller path load, coupled with a lower friction coefficient, ensure reduced wear and prolonged operational life.

  • Insulative Properties: The non-conductive nature of silicon nitride balls renders them ideal for insulative scenarios, adding a layer of safety and reliability.

  • Resilience in Challenging Environments: In scenarios with poor lubrication or none at all, these bearings shine. They resist contamination, ensuring a significantly prolonged service life even in adverse operating conditions.

Versatility in Applications

From high-speed motorized spindle bearings, machine tool spindle bearings, and engine bit bearings to applications in HDD, roller skates, fishing gear, model airplanes, and battery-operated toys, the adaptability of silicon nitride ceramic ball bearings knows no bounds.

Conclusion

Silicon nitride ceramic ball bearings herald a new era in precision engineering, offering a convergence of unparalleled performance, durability, and versatility across diverse industrial landscapes. Embrace the future of precision machinery with bearings that redefine excellence.

 Silicon Nitride Ceramic Ball Bearings

Ceramic material performance data sheet:

items

units

Si3N4

ZrO2

99.5% AI2O3

SiC

bearing steel

density

g/cm3

3.23

6.05

3.92

3.12

7.85

absorbing rate

%

0

0

0

0

0

CTE

106/k

3.2

10.5

8.5

3

12.5

Young's elastic modulus

Gpa

300

210

340

440

208

Parking ratio

/

0.26

0.3

0.22

0.17

0.3

hardness(Hv)

MPa

1500

1200

1650

2800

700

bending strength(RT)

MPa

720

950

310

390

520(tensile strength)

bending strength(700℃)

MPa

450

210

230

380

/

compressive strength(RT)

MPa

2300

2000

2200

1800

/

breaking tenacity

MPa·m1/2

6.2

10

4.2

3.9

25

heat conductivity(RT)

W/m·k

25

2

26

120

40

electrical resistivity(RT)

Ω·mm2/m

>1013

>1015

>1016

>103

0.1~1

maximum service temperature( non-load)

1050

750

1750

1550

300

acid and alkali resistance

/

strong

strong

strong

strong

weak


 none
none 

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