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High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings
High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings
High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings
High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings
Specifications
Brand Name :
OEM
Certification :
ISO 16949
Place of Origin :
CHINA
MOQ :
Negotiable
Price :
Negotiation
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
1000000 Piece/ per Month
Delivery Time :
10-15 working days
Packaging Details :
Wooden cases standard export package
Material :
ZrO2 or Si3N4 etc.
Almost Material of Cage :
PTFE material
Other material of Cage :
GFRPA66-25, PEEK, PI, AISI SUS304, SUS316, Cu, etc.
Density :
ZrO2 is 6g/cm3, Si3N4 is 3.2g/cm3
Cycle stress :
50*10^6
Application temperature :
1000℃
Description

High Precision And Mini-size Ceramic Bearings

With widely using of the ceramic bearings in all kinds of industries, they have the different requirements of frame, category, material, and precision of the ceramic bearings. During the production, the requirements need to be improved by a long experiment, but on the small type (inner diameter less than 10mm), the precision of product is hard to meet the requirement of customers by the routine processing craft.

According to above problem, we have an adjustment of the manufacturing machine and processing craft. We use a new processing craft aiming at the ceramic bearing whose inner diameter less than 10mm, and purchase the new processing machine, which insure the production of the high precision and mini-size ceramic bearing from the hardware.

Comparison of bearing material technical data
Technical data unit GCr15 9Cr18 Si3N4 AL203 ZrO2
Density g/cm³ 7.8 7.9 3.2 3.95 6
a Coefficient of expansion 10^-6/℃ 11 17 3.2 9.1 10.5
E modulus of elasticity Gpa 208 200 320 380 210
μ Poisson ratio 　 0.3 0.3 0.26 0.27 0.3
HV Hardness 　 800 700 1700 1800 1300
δ Flexural strength Mpa 2400 2600 900 220 1000
δ Compressive Strength MPa 　 　 2000 1500 3500
Kc Impact strength Nm/cm² 20 25 7 3.5 11
λ Thermal conductivity W/mk 30-40 15 3.5 25 2.5
Ω Specific resistivity mm²/m 1 0.75 10^18 10^8 10^5
Specific heat J/KgK 450 450 800 880 400
Application temperature ℃ 120 150 1000 1850 800
Anti-corrossion 　 No poor Good Good Good
Cycle stress 　 10*10^6 10*10^6 50*10^6 30*10^6 50*10^6
Destroy model 　 peel peel peel fracture peel/fracture
Anti-magnetism 　 Yes Yes No No No
Dimension stability 　 bad poor Good Good Good
Insulate properties 　 No insulation No insulation Good Good Good

Basic properties of staple engineer plastic
Material HDPE PP POM PA66 PVDF PPS PTFE PEEK
Long-time working temp. 90 100 110 100 150 230 260 280
Density g/cm3 0.91 1.42 1.14 1.77 1.35 2.18 1.32
Ball indentation hardness 50 80 170 170 80 190 30 　
Tensile stress 25 30 70 80 50 75 25 95
Sliding friction coefficient 0.29 0.3 0.34 0.35-0.42 0.3 　 0.08-0.1 0.3-0.38
Melted temperature 130 165 175 260 172 280 327 343
Short-time highest application temperature 90 140 150 170 150 260 260 300
Coet of Inear expansion (10^-5/K) 13-15 17 10 8 13 5 12 5
Dielectric constant at 1 Mhz(10^6HZ) 2.4 2.25 3.7 3.6-5 8 　 2.1 3.2-3.3
Volume resisrivity (Ω·cm) >10^15 >10^24 >10^14 10^13 10^12 >10^13 10^14 10^13
flammability UL94 + + - (+) (+) - + +
Anti-weathering - - - - - - + -
Note: + =resistant; (+) =partly resistant; - =non-resistant

High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings

Product tags

silicon nitride ball bearings

,

skf 608 ceramic bearings

,

miniature ceramic bearings
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High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings

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Product Detail
Brand Name :
OEM
Certification :
ISO 16949
Place of Origin :
CHINA
MOQ :
Negotiable
Price :
Negotiation
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Contact Supplier
High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings
High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings

Beijing Silk Road Enterprise Management Services Co.,LTD

Verified Supplier
5 Years
Since 2009
Business Type :
Manufacturer, Distributor/Wholesaler, Agent
Main Products :
Self Lubricating Plain Bearing, Plain Bush Bearing, Bronze Plain Bearings
Employee Number :
400~500
Certification Level :
Verified Supplier
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