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.
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.
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.
Embracing precision levels ranging from P0 to P4, these bearings set a new benchmark for accuracy, ensuring reliability and consistency in operations.
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.
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.
Recognizing the diversity in operational landscapes, we specialize in customizing non-standard bearings, meticulously designed and manufactured to seamlessly integrate with distinct working conditions.
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.
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.
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.
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.
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 |
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Silicon Nitride Ceramic Ball Bearing
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Sanxin New Materials Co., Ltd. focus on producing and selling ceramic beads and parts such as grinding media, blasting beads, bearing ball, structure part, ceramic wear-resistant liners, Nanoparticles Nano Powder