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Hybrid Ceramic Bearings

With the development of the world economy, the machinery industry is progressing faster and faster. With the innovation of new technologies and new materials, hybrid ceramic ball bearings have been developed. The use of hybrid ceramic ball bearings has made up for the bearing steel material and all-ceramic bearings. The cost of chrome steel bearings are low level, but there is almost no corrosion resistance; all ceramic bearings have good corrosion resistance, but they are not impact resistant, and the price is relatively expensive.
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With the development of the world economy, the machinery industry is progressing faster and faster. With the innovation of new technologies and new materials, hybrid ceramic ball bearings have been developed. The use of hybrid ceramic ball bearings has made up for the bearing steel material and all-ceramic bearings. The cost of chrome steel bearings are low level, but there is almost no corrosion resistance; all ceramic bearings have good corrosion resistance, but they are not impact resistant, and the price is relatively expensive.

Under such circumstances, the hybrid ceramic bearing was born. It not only has a certain corrosion resistance effect, the most important thing is that it has the self-lubricating effect of ordinary bearings, and the price is much lower than that of full ceramic bearings.

 

Hybrid ceramic bearings China


1. What is a hybrid ceramic bearing

Using ceramic materials to replace steel and other metal materials as rolling elements, the purpose is to use ceramic balls that are better than bearing steel balls in wear resistance, corrosion resistance, high temperature resistance, electrical insulation (except SiC), non-magnetic, high strength, high rigidity, Performance such as small proportion.

 

The use of ceramic materials can make the bearing run normally at higher speeds, harsher environments and low lubrication situations, and can reduce wear, reduce noise, reduce vibration, and make maintenance easier, so as to achieve longer bearing life and greatly improve Its performance and reliability. Ceramic materials suitable for making bearings.

 

Hybrid ceramic bearings include hybrid ceramic ball bearings and hybrid ceramic cylindrical roller bearings. hybrid ceramic angular contact ball bearings, Hybrid insert bearings (pillow block bearings). Hybrid ceramic bearings are assembled from bearing steel rings and bearing-grade silicon nitride rolling elements (Si3N4). The bearings have electrical Insulation characteristics.

 

P_DGBB_Hybrid_Brass-Cage_874x555_副本


Silicon nitride rolling elements can provide higher bearing performance even under harsh working conditions, thereby prolonging the service life of the bearing.

 

Hybrid ceramic ball bearings, especially silicon nitride ball hybrid ceramic bearings, have the characteristics of low density, high hardness, low friction coefficient, anti-magnetic and electrical insulation, wear resistance, self-lubricating and good rigidity, good acid and alkali resistance, self-lubricating function, High temperature resistance above 300°C, high wear resistance, high speed greatly reduces rolling, friction and heat generation, long service life is 3 to 5 times that of all-steel bearings, light weight, ceramic material is 60% lighter than steel, and the same rigidity The elastic mold of ceramic material is 50% higher than that of bearing steel.

 

Hybrid ceramic ball bearings are particularly suitable for high-speed, high-precision and long-life steel-ceramic hybrid bearings rolling elements (the inner and outer rings are made of metal). Generally, the inner and outer rings are made of bearing steel or stainless steel, and the ceramic balls can be made of ZrO2, Si3N4, or SiC.

 

Among them, Si3N4 has superior comprehensive performance and has become the preferred material for steel-ceramic hybrid ceramic bearings.

 

Bearing structure: bearing steel ferrule, or stainless steel ferrule + ceramic ball + nylon retainer + rubber seal

high preicison hybrid ceramic bearings

Second, the advantages of hybrid ceramic bearings

(1) High temperature resistance

The thermal expansion coefficient of ceramic balls is small, and the bearing balls will not expand due to temperature in high temperature environments, which greatly increases the operating temperature of the entire bearing. The temperature of ordinary bearings is about 160 degrees, and the temperature of ceramic balls can reach more than 220 degrees.

(2) High speed

Ceramic balls have oil-free and self-lubricating properties, and the friction coefficient of ceramic balls is small, so ceramic ball bearings have a very high speed. According to statistics, bearings using ceramic balls are more than 1.5 times the speed of ordinary bearings.

(3) Long lifespan

Ordinary bearings are used in water and high temperature environments, the grease is easy to wash off or dry out, so the bearing will soon be damaged. Using ceramic balls as rolling elements, this avoids the occurrence of premature bearing damage caused by the drying of grease in ordinary bearings; according to our test and some customer feedback, the service life of the bearing after using ceramic balls is 2- 3 times.

(4) Insulation

The rolling elements are made of ceramic balls, which can achieve insulation between the inner ring and the outer ring of the bearing. Because ceramic balls are insulators, using ceramic balls between the inner and outer rings of the bearing can achieve the effect of insulation. In this way, the bearing can be used in a conductive environment. This is also the biggest advantage of hybrid ceramic bearings.

(5) Oil-free and self-lubricating

Ceramic balls have oil-free and self-lubricating properties, that is to say, even if the grease dries out, the bearing can still operate, so ceramic ball bearings can be grease-free.

 

Ceramic-Hybrid-Bearings-1


Third, the use of hybrid ceramic bearings:

1. Car

For the bearings used in automobiles, the turbo charger bearings have the highest requirements for speed, which require the bearings to have good acceleration responsiveness, as well as low torque, low vibration and low temperature rise under high-speed rotation. Due to its low temperature rise during operation, it can reduce the amount of lubricating oil, so the oil stirring resistance is reduced, the bearing torque is reduced, and the speed is increased. In addition, rail vehicles also use it, and its durability and reliability under harsh conditions have been proven.

2. Motor

Electric motors can be used to achieve permanent insulation. When the motors are used for deceleration and energy-saving devices, internal leakage can cause arcing.

3. Aero Engine

In the fuel pump of an aero engine, it can work in liquid oxygen and liquid hydrogen for a long time. It has been proven that it will not be damaged after 50 launches.

4. Aircraft parts

The aircraft manufacturing industry has used ball screws equipped with ceramic balls for aircraft flap adjusters, and has also tried to use hybrid ceramic bearings in gas turbine engines.

CoaMaster DesignationPrincipal dimensionsBasic load ratingsSpeed ratings
Top quality bearings supplier
dynamicstaticReference speedLimiting speed

d[mm]D[mm]B[mm]C[kN]C0[kN][r/min][r/min]
625-2RZTN9/HC5C3WTF151651.110.38125 00067 000
626-2RSLTN9/HC5C3WTF161962.210.95100 00045 000
607-2RSLTN9/HC5C3WTF171962.210.9590 00043 000
627-2RSLTN9/HC5C3WTF172273.251.3785 00040 000
608-2RSLTN9/HC5C3WTF182273.251.3785 00038 000
6000-2RSLTN9/HC5C3WT102684.621.9670 00034 000
6000/HC5C3102684.621.9670 00045 000
6200-2RSLTN9/HC5C3WT103095.072.3663 00030 000
6200/HC5C3103095.072.3663 00040 000
6001-2RSLTN9/HC5C3WT122885.072.3663 00030 000
6001/HC5C3122885.072.3663 00040 000
6201-2RSLTN9/HC5C3WT1232106.893.160 00028 000
6201/HC5C31232106.893.160 00038 000
6002-2RSLTN9/HC5C3WT153295.592.8556 00026 000
6002/HC5C3153295.592.8556 00036 000
6202-2RSLTN9/HC5C3WT1535117.83.7550 00024 000
6202/HC5C31535117.83.7550 00032 000
6003-2RSLTN9/HC5C3WT1735106.053.2550 00022 000
6003/HC5C31735106.053.2550 00032 000
6203-2RSLTN9/HC5C3WT1740129.564.7545 00020 000
6203/HC5C31740129.564.7545 00028 000
6004-2RSLTN9/HC5C3WT2042129.36543 00019 000
6004/HC5C32042129.36543 00026 000
6204-2RSLTN9/HC5C3WT20471412.76.5538 00018 000
6204/HC5C320471412.76.5538 00024 000
6005-2RSLTN9/HC5C3WT25471211.26.5536 00016 000
6005/HC5C325471211.26.5536 00022 000
6205-2RSLTN9/HC5C3WT255215147.832 00015 000
6205/HC5C3255215147.832 00022 000
6006-2RZTN9/HC5C3WT30551313.38.330 00016 000








CoaMaster DesignationPrincipal dimensionsBasic load ratingsSpeed ratings
Top quality bearings supplier
dynamicstaticReference speedLimiting speed

d[mm]D[mm]B[mm]C[kN]C0[kN][r/min][r/min]
6006/HC5C330551313.38.330 00019 000
6206-2RZTN9/HC5C3WT30621619.511.228 00015 000
6007-2RZTN9/HC5C3WT35621415.910.226 00014 000
6007/HC5C335621415.910.226 00017 000
6207-2RZTN9/HC5C3WT35721725.515.324 00013 000
6207/HC5C335721725.515.324 00015 000
6008-2RZTN9/HC5C3WT40681516.81124 00013 000
6008/HC5C340681516.81124 00015 000
6208-2RZTN9/HC5C3WT40801830.71922 00011 000
6208/HC5C340801830.71922 00014 000
6009/HC5C345751620.814.622 00014 000
6209-2RZTN9/HC5C3WT45851933.221.620 00011 000
6209/HC5C345851933.221.620 00013 000
6309-2RS1TN9/HC5C3WT451002552.731.5
4 500
6210-2RS1/HC5C3WT50902035.123.2
4 800
6210/HC5C350902035.123.218 00012 000
6310-2RS1/HC5C3WT501102761.838
4 300
6310/HC5C3501102761.83816 00010 000
6211-2RS1/HC5C3WT551002143.629
4 300
6211/HC5C3551002143.62916 00010 000
6311-2RS1/HC5C3WT551202971.545
3 800
6311/HC5C3551202971.54514 0009 000
6212-2RS1/HC5C3WT601102252.736
4 000
6212/HC5C3601102252.73615 0009 500
6312-2RS1/HC5C3WT601303181.952
3 400
6312/HC5C3601303181.95213 0008 500
6213-2RS1/HC5C3WT651202355.940.5
3 600
6213/HC5C3651202355.940.514 0008 500
6313-2RS1/HC5C3WT651403392.360
3 200
6313/HC5C3651403392.36012 0008 000








CoaMaster DesignationPrincipal dimensionsBasic load ratingsSpeed ratings
Top quality bearings supplier
dynamicstaticReference speedLimiting speed

d[mm]D[mm]B[mm]C[kN]C0[kN][r/min][r/min]
6214-2RS1/HC5C3WT701252460.545
3 400
6214/HC5C3701252460.54513 0008 500
6314/HC5C370150351046811 0007 500
6215-2RS1/HC5C3WT751302566.349
3 200
6215/HC5C3751302566.34912 0008 000
6315/HC5C3751603711476.511 0006 700
6216/HC5C3801402670.25511 0007 000
6317/HC5C3851804113396.59 5006 000
6218/HC5C3901603095.673.510 0006 300
6318/HC5C390190431431089 0005 600
6219/HC5C3951703210881.59 5006 000
6319/HC5C395200451531188 5005 300
6220/HC5C310018034124939 0005 600
6320/HC5C3100215471741408 0005 000
6322/HC5C3S0VA970110240501561326 7004 300
6324/HC5C3S0VA970120260551651506 3004 000
6326/HC5C3S0VA970130280581741666 0003 800
6328/HC5C3S0VA970140300622512455 6003 600
6330/HC5C3S0VA970150320652762855 3003 200
6232/HC5C3S0VA970160290481861865 3003 400
6332/HC5C3S0VA970160340682762904 5002 800
6334/HC5C3S0VA970170360722762904 5002 800
6336/HC5C3PS0VA970180380752762904 5002 800








CoaMaster DesignationPrincipal dimensionsBasic load ratingsSpeed ratings
Top quality bearings supplier
dynamicstaticReference speedLimiting speed

d[mm]D[mm]B[mm]C[kN]C0[kN][r/min][r/min]
NU 1008 ML/HC5C340681525.12612 00022 000
NU 1009 ECP/HC5C345751644.65211 00013 000
NU 1010 ECP/HC5C350801646.8569 50012 000
NU 210 ECM/HC5C350902064.469.57 50011 000
NU 310 ECM/HC5C350110271101126 00010 000
NU 1011 ECM/HC5C355901857.269.58 50011 000
NU 211 ECM/HC5C3551002184.2957 00010 000
NU 311 ECM/HC5C355120291381435 6009 000
NU 1012 M/HC5C360951837.4448 00010 000
NU 212 ECM/HC5C3601102293.51026 3009 000
NU 312 ECM/HC5C360130311511605 0008 000
NU 1013 ECP/HC5C3651001862.781.57 5009 500
NU 213 ECM/HC5C365120231061185 6008 500
NU 313 ECM/HC5C365140331831964 8007 500
NU 1014 ECP/HC5C3701102076.5937 0008 500
NU 214 ECM/HC5C370125241191375 3008 000
NU 314 ECM/HC5C370150352052284 3007 000
NU 1015 M/HC5C3751152058.3716 7008 500
NU 215 ECM/HC5C375130251301565 3007 500
NU 1016 ECM/HC5C38012522991276 0007 500
NU 216 ECM/HC5C380140261381664 8007 000
NU 1017 M/HC5C3851302268.286.56 0007 500
NU 217 ECM/HC5C385150281652004 5006 700
NU 1018 M/HC5C3901402480.91045 6006 700
NU 218 ECM/HC5C390160301832204 5006 300
NU 1019 ML/HC5C3951452484.21105 30010 000
NU 1020 M/HC5C31001502485.81145 0006 300


CoatMaster is the guarantee of the high quality of China's hybrid ceramic deep groove ball bearings. Since 2007, CoatMaster has been a technical service provider and manufacturer of electrically insulated bearings, hybrid ceramic bearings, and ceramic bearings. CoatMaster series ceramic bearings have high-precision tolerances, uniquely designed internal geometric structures, and high-quality bearing materials. The hybrid ceramic bearings it provides have: high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic electrical insulation, oil-free self-lubrication, high speed and other characteristics. It can be used in extremely harsh environments and special working conditions.

 

CoatMaster series high-precision bearings:

1. Ceramic bearings

Zirconia ceramic bearings,

Silicon nitride ceramic bearings,

Silicon carbide ceramic bearings,

Alumina ceramic bearings,

Hybrid ceramic ball bearings,

2. Hybrid ceramic bearings

Hybrid ceramic deep groove ball bearings

Hybrid ceramic angular contact ball bearings

Hybrid ceramic self-aligning ball bearing

Hybrid ceramic thrust ball bearings

Hybrid ceramic cylindrical roller bearings

3. Electrically insulated bearings

Insulated deep groove ball bearing

Insulated cylindrical roller bearings

Insulated angular contact ball bearings

Insulated thrust ball bearing

Insulated self-aligning ball bearing

Insulated spherical roller bearings

Insulated tapered roller bearings

Insulated Thrust Roller Bearing

Insulated linear bearing

 

At the same time, CoatMaster (China Bearing manufacturer, Germany Technology) also provides British Barden, German HQW, French ADR, American SILVERTHIN hybrid ceramic ball bearings, high-precision hybrid ceramic bearings used in aerospace, turbo molecular pumps, semiconductors, medical equipment, turbojet aircraft and other fields, more product information is available Feel free to contact us to communicate.