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Full Ceramic Bearings Ssic Self-Aligning Deep Groove Ball Bearing1
Special Bearing, Ceramic Bearing, Ball Bearing
Nanjing JPG Bearing & Equipment Co., Ltd.
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Product Description Product detailsSilicon carbide is an inorganic non-metallic material. Silicon carbide has high hardness, high wear resistance, low friction coefficient, strong oxidation resistance, good thermal stability, low thermal expansion coefficient, high thermal conductivity, thermal shock resistance and chemical resistance. Silicon carbide is widely used in various mechanical equipment requiring wear resistance, corrosion resistance and high temperature resistance. The silicon carbide bearings produced by our company use a new generation of pressureless sintered silicon carbide(SSiC). SSiC seeks to use high-purity a-SiC micropowder and additives to press into a green body, and then through a pressureless sintering process at high temperatures to form high-purity, high-density silicon carbide without free silicon. SSiC has better hardness, strength, corrosion resistance, high temperature resistance, impact resistance and other performance indicators than other ceramics (such as: ZrO2, reaction sintered silicon carbide, etc.). Structure Of SSiC Self-aligning Ball BearingRings: SSiC CeramicRolling Element: SSiC CeramicCage: PTFE ( PA66, PEEK, AISI304 or other plastic material available too) Mechanical Properties Of Ssic CeramicItem NO.Mechanical PropertiesUnitParameter1Densityg/cm33.12Porsity %/≤0.153HardnessHRA≥924Bending StrengthMPa.≥4705Modulus of ElasticityGPa.≥4106Fracture toughnessMPa.M1/2≥3.57Coefficient of thermal expansion1X10-6/oC48Silicon carbide content %/≥98%9Free-silicon content %/noneSelf-Aligning Ball Bearing Selection TableSelf-Aligning Ball BearingNumberDimentions (mm)Mounting Dimentions( mm)Reference WeightdaDara(kg)dDBr (min)minmaxmaxZrO2Si3N4440C13551960.37170.30.007 0.004 0.009 12661960.38170.30.007 0.004 0.009 12772270.39200.30.011 0.006 0.014 10882270.310200.30.011 0.006 0.014 12992680.613220.60.017 0.009 0.022 1200103090.614260.60.026 0.014 0.034 220030140.614260.60.036 0.019 0.047 130025110.614310.60.045 0.024 0.058 230025170.614310.60.065 0.035 0.085 12011232100.616280.60.031 0.016 0.040 220132140.616280.60.041 0.022 0.053 130137121173210.052 0.027 0.067 230137171173210.073 0.039 0.095 12021535110.619310.60.038 0.020 0.049 220235140.619310.60.046 0.025 0.060 130242131203710.072 0.039 0.094 230242171203710.088 0.047 0.110 12031740120.621360.60.056 0.030 0.073 220340160.621360.60.068 0.036 0.088 130347141224210.100 0.053 0.130 230347191224210.120 0.065 0.160 12042047141254210.090 0.049 0.120 220447181254210.110 0.057 0.140 130452151.126.545.510.130 0.067 0.160 130452211.126.545.510.160 0.086 0.210 12052552151304710.110 0.058 0.140 220552181304710.130 0.067 0.160 130562171.131.555.510.200 0.110 0.260 230562241.131.555.510.260 0.140 0.340 12063062161355710.170 0.090 0.220 220662201355710.200 0.110 0.260 130672191.136.565.510.300 0.160 0.390 230672271.136.565.510.380 0.210 0.500 12073572171.141.565.510.250 0.130 0.320 220772231.141.565.510.310 0.170 0.400 130780211.543721.50.390 0.210 0.510 230780311.543721.50.520 0.280 0.680 12084080181.146.573.510.320 0.170 0.420 220880231.146.573.510.390 0.210 0.510 130890231.548821.50.550 0.290 0.720 230890331.548821.50.710 0.380 0.930 12094585191.151.578.510.360 0.190 0.470 220985231.151.578.510.420 0.220 0.550 1309100251.553921.50.740 0.390 0.960 2309100361.553921.50.950 0.500 1.230 12105090201.156.583.510.400 0.220 0.530 221090231.156.583.510.450 0.240 0.590 13101102725910120.930 0.500 1.210 23101104025910121.260 0.670 1.640 121155100211.563921.50.540 0.290 0.710 2211100251.563921.50.620 0.330 0.810 13111202926411121.220 0.650 1.580 23111204326411121.620 0.860 2.100 121260110221.5681021.50.690 0.370 0.900 2212110281.5681021.50.840 0.450 1.090 1312130312.17111921.510 0.800 1.960 2312130462.17111922.000 1.070 2.600 121365120231.5731121.50.880 0.470 1.150 2213120311.5731121.51.120 0.600 1.460 1313140332.17612921.880 1.010 2.450 2313140482.17612922.480 1.330 3.230 121470125241.5781171.50.970 0.520 1.260 2214125311.5781171.51.170 0.620 1.520 1314150352.18113922.300 1.230 2.990 2314150512.18113923.250 1.740 4.230 121575130251.5831221.51.050 0.560 1.360 2215130311.5831221.51.250 0.660 1.620 1216801402628913121.280 0.690 1.670 22161403328913121.550 0.820 2.010 1217851502829414121.590 0.850 2.070 22171503629414121.940 1.030 2.520 1317180413 3.782.014.912317180603 5.32.836.89121890160302 1.911.022.482218160402 2.561.373.331318190433 4.42.345.712318190643 6.353.388.25121995170323.1 2.351.253.052219170432.1 3.081.6441319200453 5.072.76.592319200673 7.363.939.571220100180342.1 2.81.53.642220180462.1 3.7524.871221105190362.1 3.361.84.372221190502.1 4.672.496.071222110200382.1 3.962.115.152222200532.1 5.462.917.1Ceramic Bearing DescriptionCeramic Bearing Description 1. Ceramic bearings have the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic and electrical insulation, oil-free self-lubrication, and high speed. It can be used in extremely harsh environments and special working conditions. It can be widely used in aviation, aerospace, navigation, petroleum, chemical, automotive, electronic equipment, metallurgy, electric power, textiles, pumps, medical equipment, scientific research, national defense and military fields. High-tech products for the application of new materials.2. The ceramic bearings, rings and rolling elements produced by the company are made of all ceramic materials, including zirconia (ZrO2), silicon nitride (SisN4), and silicon carbide (SiC). The retainer is made of polytetrafluoroethylene, nylon 66, polyetherimide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thereby expanding the application range of ceramic bearings. Such as: high-speed bearings, high-temperature bearings, corrosion-resistant bearings, anti-magnetic bearings, electrical insulation bearings, etc.(1) High-speed bearing: It has the advantages of cold resistance, small force elasticity, high pressure resistance, poor thermal conductivity, light weight, and small friction coefficient. It can be applied to high-speed spindles at 12,000 rpm to 75,000 rpm and others In high-precision equipment;(2) High temperature resistant bearing: The material itself is resistant to high temperature of 1200oC, and it is self-lubricating. The use temperature is between 100oC and 800oC without expansion caused by temperature difference. It can be used in furnaces, plastics, steel and other high-temperature equipment;(3) Corrosion-resistant bearings: The material itself has corrosion-resistant properties and can be used in fields such as strong acids, strong alkalis, inorganic, organic salts, seawater, etc., such as: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical equipment, etc. .(4) Antimagnetic bearing: Because it is non-magnetic and does not absorb dust, it can reduce the bearing peeling off in advance and loud noise. Can be used in demagnetization equipment. Precision instruments and other fields.(5) Electrically insulated bearings: Because of their high electrical resistance, they can avoid arc damage to the bearings and can be used in various electrical equipment requiring insulation.(6) Vacuum bearings: Due to the unique oil-free and self-lubricating characteristics of ceramic materials, it can overcome the problem that ordinary bearings cannot achieve lubrication in an ultra-high vacuum environment.Note: For the above five types of bearings provided by our company, the same set of bearings can be used in high temperature, high speed, acid-base, magnetic field, non-insulation, but the material properties are different (please refer to the performance table of rare earth ceramic materials). When the customer chooses the product, he informs the company where it is applied, and we will select the ceramic bearing with the most suitable material for you.3. List of bearing models(1) Deep groove ball bearings (technical grade: P4, P5, P6, P0)Deep groove ball bearings, the most representative rolling bearings, have a wide range of uses and can withstand radial loads and bidirectional axial loads. It is suitable for high-speed rotation, low noise and low vibration occasions, or high temperature, high cold, corrosion, magnetic field, non-insulation and other fields where steel bearings cannot be used.(2) Self-aligning ball bearingsThe raceway of the outer ring of the self-aligning ball bearing is spherical and self-aligning, which can supplement the error caused by the misalignment and shaft deflection. It is used to produce non-concentric or shaft deflection parts between the shaft and the shell and the alignment parts required by high temperature, low cold, corrosion, and magnetic field non-insulation.Note: The inclination cannot exceed 3 degrees.(3) Single row angular contact ball bearings (technical grade: P4, P5, P6, P0)Angular contact bearings are suitable for high-speed and high-precision rotation. They do not affect their accuracy in high temperature, magnetic field, water, etc., and can withstand composite loads. The standard contact angles are 15°, 30° and 40°. The larger the contact angle, the greater the axial load capacity, and the smaller the contact angle. The bearing can withstand radial load and unidirectional axial load. Generally adopted in pairs installation. Please pay attention when purchasing.(4) One-way thrust ball bearingThe one-way thrust ball bearing is composed of a washer-shaped ring with a ball rolling raceway and a cage assembled with the ball. Can bear axial load, but cannot bear radial load.4. Characteristics of ceramic bearing materials(1) (Please refer to the table of common bearing materials performance)(2) Compared with the performance of bearing steel, its own weight is 30%-40% of bearing steel, which can reduce the increase of dynamic body load and slip caused by centrifugal force. Because of the high wear resistance, the speed is 1.3 to 1.5 times that of bearing steel, which can reduce the surface damage of the channel caused by high-speed rotation. The modulus of elasticity is 1.5 times higher than that of bearing steel. The force elasticity is small, which can reduce the deformation caused by the high load. The hardness is 1 times that of bearing steel, which can reduce wear. Compression resistance is 5-7 times that of bearing steel. The coefficient of thermal expansion is less than 20% of bearing steel. The friction coefficient is less than 30% of the bearing steel, which can reduce the heat generated by friction and reduce the bearing failure due to high temperature. The tensile and bending resistance are the same as metal.5. Installation of ceramic bearingsThe inner diameter and outer diameter of the ceramic bearings produced by our company are the standard sizes of P4, P5, P6 grades of steel bearings established by the country. Due to the low coefficient of thermal expansion of ceramic materials, small heat transfer performance, and small elasticity, attention should be paid to the installation and coordination. If you are unsure, please consult our company when you can buy the product, and I will choose the appropriate fit tolerance for you.Common Bearing Material Performance Comparison TablePerformanceUnitGCr159Cr18Si3N4ZrO2densityg/cm37.87.93.26Thermal expansion10-6/11173.210.5Elastic ModulusGPa208200320210Poisson's ratio 0.30.30.260.3hardness 80070017001300Bending strengthMPa240026009001000Compressive strengthMPa 35002000toughnessNm/cm22025711Thermal conductivityW/mk30-40153.52.5Specific resistancemm2/m10.7510181015Specific heat 450450800400Operating temperature 1201501000800Corrosion noweakStrongStrongNumber of stress cycles 10*10610*10650*10650*106Flow contact fatigue failure mode differencePeel offPeel offPeeling/fracturemagnetic HaveHavenonoDimensional stability differencedifferencegoodgoodInsulation Not insulatedNot insulatedgoodgood Company ProfileNanjing Jpg bearing & Equipment co ltdExcellent Manufacturer of bearings*The domenticLeading numerical control production equipment ensures the accuracy consisitency and stability of the products .*Advanced production equipment and high quality tecnician team ensure the quality of bearing products .*Advanced automation equipment ensure the quality of products while taking into account the production efficiency .Leading Equipment JPG Bearingis a comprehensive manufacture and service providers with world's leading bearing manufacture process and management technique in china. We are selling all kinds of ball and roller bearings products with international standard and technology level of low noise, high load and long life. Welcome to inquiry! Main products 1.Taper roller bearing2.Deep groove ball bearing3.cylindrical roller bearing3.spherical roller bearing4.linear bearing5.pillow block bearing6 OEM all knid of famous brand7. Non-standard bearing Quality TestingRigorous Testing Perfect precision testing equipment ,fullly meet the requirements of bearing R&D and manufacturing .Strict and rigourour quality inspectors strictly abide by product quality standards and strictly control the whole process of products from test to prodution. High -ending tessing equipment ,professional operation technicians and rigorous procrssing procedures an the guarantee of qualitywith the unremitting purcuit of perfec products ,the company has established the industry's top testing laboratory ,sound quality control rules,and a well -trained professional testing team.Every process from raw materials of finished products is sticklty tested to ensure high quality products. Delivere to the customer . Packaging & ShippingPackaging:1. Neutral Package: Plastic Bag + Carton + Pallet;2. Commercial Package: Plastic Bag + Box + Carton + Pallet;3. As the clients' requirement.Delivery:1. Less than 1000 pcs , we will send by express. ( Door to Door, Convenient ),or by air transport. ( Fastest and safest, but expensive )2. More than 1000pcs , we will send by sea. ( Cheapest, safe )FAQFAQ1. Can I get some samples?A: Yes, sample is available for quality check and market test.2. Can we do our logo or brand on the package?A: Yes, we can do OEM.3. What's the delivery time?A: It usually takes about 10-25 working days for production based on specifications for your order and quantity.4. What's your payment terms?A: We usually accept T/T or L/C at sight as the main paymentterms, an d other payment can also be negotiated.5. What's your warranty terms?A: We offer different warranty time for different components,please contact us for detailsPayment:1. Less than 1000 pcs , 100% T/T, Western Union in advance.2. Between 1000-10000pcs, TT, Western Union, MoneyGram.3. More than 10000pcs , TT, L/C ,Western Union, MoneyGram.Dealing Process:Send us inqry---------Quotation-----------Confirmation for all information----------Proforma Invoice-------------Payment-----------Shipping goods and documents.
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