LOGO
Inquiry
Silicon carbide sleeve bearing with 30 mm inner diameter for pump and machinery service
Custom silicon carbide thrust bearing for corrosive chemical pump applications
Reaction-Bonded Silicon Carbide Bearing – Polished Finish
Silicon carbide ceramic bearing components for harsh industrial machinery

Silicon Carbide Bearing for Corrosive Pumps, Slurry Service and Furnace Drives

ADCERAX supplies custom silicon carbide bearings for rotating equipment exposed to corrosive liquids, abrasive slurry, elevated temperature, and lubrication-restricted operating conditions.

Each SiC bearing can be reviewed according to material grade, bore size, outer diameter, width, raceway geometry, shaft fit, load direction, surface finish, and the actual working environment before quotation.

Parameter Value Engineering Meaning
Catalogue No. AT-SIC-ZC684CE Reference model for size and quotation communication.
Material SSiC / RBSiC Silicon Carbide Material route can be selected according to corrosion, wear, load, and geometry.
Hardness HV2300–2700 Helps resist abrasive particles, slurry wear, and surface scoring.
Thermal Stability Up to 1300°C, depending on design Final use should be reviewed with load, atmosphere, shaft fit, and thermal cycling.
Thermal Expansion 4.0–4.5 × 10⁻⁶/K Helps maintain clearance stability during temperature changes.
Engineering RFQ Review
Small-Batch Custom Support
Factory-Direct Manufacturing
Drawing & Process Review
Quick Quote Now

What Is a Silicon Carbide Bearing?

A silicon carbide bearing is a ceramic bearing component made from SiC for use where metal bearings are limited by corrosion, abrasion, heat, or lubricant contamination. Compared with many metallic bearing surfaces, silicon carbide offers high hardness, low thermal expansion, chemical stability, and stable behavior under demanding industrial conditions.

In practical equipment, SiC bearings are often selected for chemical pumps, slurry systems, furnace drive assemblies, powder-handling machinery, and clean-process environments where bearing wear, swelling, corrosion, or lubrication failure may interrupt operation.

Performance Characteristics of Silicon Carbide Bearing

  • Hardness HV2300–2700 helps resist surface scoring from slurry, powders, and abrasive particles.
  • Elastic modulus of about 410 GPa helps maintain bearing geometry under radial or axial loading.
  • Dense SiC structure supports stable load transfer and helps reduce the risk of internal defect-related failure.
  • Thermal stability up to 1300°C can be reviewed according to material grade, atmosphere, load, and bearing design.
  • Thermal conductivity of 80–120 W/m·K helps dissipate frictional heat and reduce localized thermal stress.
  • Thermal expansion of 4.0–4.5 × 10⁻⁶/K helps preserve clearance during temperature changes.
  • Chemical compatibility with acids, alkalis, chloride media, and many corrosive fluids helps reduce pitting, swelling, and surface degradation.
  • Ground or polished surface finish can be selected according to shaft interaction, friction behavior, and inspection requirements.

Technical Specifications of Silicon Carbide Bearing

Designed for demanding thermal, mechanical, and chemical environments, Silicon Carbide Bearing exhibits stable structural behavior and predictable performance characteristics derived from its dense microstructure, high hardness, and resistance to thermal and chemical degradation.

Property Typical Page Value Why It Matters for Bearing Design
Material System SSiC / RBSiC, selected by application The material route affects chemical resistance, load behavior, machinability, and cost.
Hardness HV2300–2700 High hardness helps resist scoring from slurry, powders, and abrasive particles.
Density 3.10–3.20 g/cm³ Dense SiC supports stable load transfer and reduces internal defect risk.
Elastic Modulus About 410 GPa High stiffness helps maintain bearing geometry under radial or axial loading.
Thermal Conductivity 80–120 W/m·K Faster heat dissipation helps reduce localized frictional stress.
Thermal Expansion 4.0–4.5 × 10⁻⁶/K Low expansion helps preserve clearance during temperature changes.
Temperature Capability Up to 1300°C, depending on grade and design The final working limit must be reviewed with load, atmosphere, shaft design, and thermal cycling.
Chemical Compatibility Acids, alkalis, chloride media, and many corrosive fluids Chemical stability helps reduce pitting, swelling, and surface degradation.
Surface Finish Ground or polished according to drawing Surface finish affects friction behavior, wear rate, and shaft interaction.
Dimensional Tolerance Drawing-based Bore fit, OD tolerance, width, and flatness directly affect rotation stability.

Dimensions of Silicon Carbide Bearing

sic bearing size

Silicon Carbide Bearing
Item NO. Product Size r (Min) Install Size
d（Inner Dia) D（Outer Dia） B（Height） da (Min) Max Max Max
AT-SIC-ZC684CE 4 9 2.5 0.1 4.8 / 8.2 0.1
AT-SIC-ZC694CE 4 11 4 0.15 5.2 / 9.8 0.15
AT-SIC-ZC604CE 4 12 4 0.2 5.6 / 10.4 0.2
AT-SIC-ZC624CE 4 13 5 0.2 5.6 / 11.4 0.2
AT-SIC-ZC634CE 4 16 5 0.3 6 / 14 0.3
AT-SIC-ZC685CE 5 11 3 0.15 6.2 / 9.8 0.15
AT-SIC-ZC695CE 5 13 4 0.2 6.6 / 11.4 0.2
AT-SIC-ZC605CE 5 14 5 0.2 6.6 / 12.4 0.2
AT-SIC-ZC625CE 5 16 5 0.3 7 / 14 0.3
AT-SIC-ZC635CE 5 19 6 0.3 7 / 17 0.3
AT-SIC-ZC686CE 6 13 3.5 0.15 7.2 / 11.8 0.15
AT-SIC-ZC696CE 7 15 5 0.2 7.6 / 13.4 0.2
AT-SIC-ZC606CE 8 17 6 0.3 8 / 15 0.3
AT-SIC-ZC626CE 9 19 6 0.3 8 / 17 0.3
AT-SIC-ZC636CE 10 22 7 0.3 8 / 20 0.3
AT-SIC-ZC687CE 7 14 3.5 0.15 8.2 / 12.8 0.15
AT-SIC-ZC697CE 7 17 5 0.3 9 / 15 0.3
AT-SIC-ZC607CE 7 19 6 0.3 9 / 17 0.3
AT-SIC-ZC627CE 7 22 7 0.3 9 / 20 0.3
AT-SIC-ZC637CE 7 26 9 0.3 9 / 24 0.3
AT-SIC-ZC688CE 8 16 4 0.2 9.6 / 14.4 0.2
AT-SIC-ZC698CE 8 19 6 0.3 10 / 17 0.3
AT-SIC-ZC608CE 8 22 7 0.3 10 / 20 0.3
AT-SIC-ZC628CE 8 24 8 0.3 10 / 22 0.3
AT-SIC-ZC638CE 8 28 9 0.3 10 / 26 0.3
AT-SIC-ZC689CE 9 17 4 0.2 10.6 / 15.4 0.2
AT-SIC-ZC699CE 9 20 6 0.3 11 / 18 0.3
AT-SIC-ZC609CE 9 24 7 0.3 11 / 22 0.3
AT-SIC-ZC629CE 9 26 8 0.3 11 / 24 0.3
AT-SIC-ZC639CE 9 30 10 0.6 13 / 26 0.6
AT-SIC-ZC6800CE 10 19 5 0.3 12 12 17 0.3
AT-SIC-ZC6900CE 10 22 6 0.3 12 12.5 20 0.3
AT-SIC-ZC6000CE 10 26 8 0.3 12 13 24 0.3
AT-SIC-ZC6200CE 10 30 9 0.6 14 16 26 0.6
AT-SIC-ZC6300CE 10 35 11 0.6 14 16.5 31 0.6
AT-SIC-ZC6801CE 12 21 5 0.3 14 14 19 0.3
AT-SIC-ZC6901CE 12 24 6 0.3 14 14.5 22 0.3
AT-SIC-ZC16001CE 12 28 7 0.3 14 / 26 0.3
AT-SIC-ZC6001CE 12 28 8 0.3 14 15.5 26 0.3
AT-SIC-ZC6201CE 12 32 10 0.6 16 17 28 0.6
AT-SIC-ZC6301CE 12 37 12 1 17 18 32 1
AT-SIC-ZC6802CE 15 24 5 0.3 17 17 22 0.3
AT-SIC-ZC6902CE 15 28 7 0.3 17 17 26 0.3
AT-SIC-ZC16002CE 15 32 8 0.3 17 / 30 0.3
AT-SIC-ZC6002CE 15 32 9 0.3 17 19 30 0.3
AT-SIC-ZC6202CE 15 35 11 0.6 19 20.5 31 0.3
AT-SIC-ZC6302CE 15 42 13 1 20 22.5 37 1
AT-SIC-ZC6803CE 17 26 5 0.3 19 19 24 0.3
AT-SIC-ZC6903CE 17 30 7 0.3 19 19.5 28 0.3
AT-SIC-ZC16003CE 17 35 8 0.3 19 / 33 0.3
AT-SIC-ZC6003CE 17 35 10 0.3 19 21.5 33 0.3
AT-SIC-ZC6203CE 17 40 12 0.6 21 23.5 36 0.6
AT-SIC-ZC6303CE 17 47 14 1 22 25.5 42 1
AT-SIC-ZC6403CE 17 62 17 1.1 23.5 / 55.5 1
AT-SIC-ZC6804CE 20 32 7 0.3 22 22.5 30 0.3
AT-SIC-ZC6904CE 20 37 9 0.3 22 24 35 0.3
AT-SIC-ZC16004CE 20 42 8 0.3 22 / 40 0.3
AT-SIC-ZC6004CE 20 42 12 0.6 24 25.5 38 0.6
AT-SIC-ZC6204CE 20 47 14 1 25 26.5 42 1
AT-SIC-ZC6304CE 20 52 15 1.1 26.5 28 45.5 1
AT-SIC-ZC6404CE 20 72 19 1.1 26.5 / 65.5 1
AT-SIC-ZC6805CE 25 37 7 0.3 27 27 35 0.3
AT-SIC-ZC6905CE 25 42 9 0.3 27 28.5 40 0.3
AT-SIC-ZC16005CE 25 47 8 0.3 27 / 45 0.3
AT-SIC-ZC6005CE 25 47 12 0.6 29 30 43 0.6
AT-SIC-ZC6205CE 25 52 15 1 30 32 47 1
AT-SIC-ZC6305CE 25 62 17 1.1 31.5 36 55.5 1
AT-SIC-ZC6405CE 25 80 21 1.5 33 / 72 1.5
AT-SIC-ZC6806CE 30 42 7 0.3 32 32 50 1
AT-SIC-ZC6906CE 30 47 9 0.3 32 34 57 1
AT-SIC-ZC16006CE 30 55 9 0.3 32 42.5 65.5 1
AT-SIC-ZC6006CE 30 55 13 1 35 36.5 53 1
AT-SIC-ZC6206CE 30 62 16 1 35 38.5 60 1
AT-SIC-ZC6306CE 30 72 19 1.1 36.5 42.5 68.5 1
AT-SIC-ZC6406CE 30 90 23 1.5 54 / 82 2
AT-SIC-ZC6807CE 35 47 7 0.3 37 37 45 0.3
AT-SIC-ZC6907CE 35 55 10 0.6 39 39 51 0.6
AT-SIC-ZC16007CE 35 62 9 0.3 37 / 60 0.3
AT-SIC-ZC6007CE 35 62 14 1 40 41.5 57 1
AT-SIC-ZC6207CE 35 72 17 1.1 41.5 44.5 65.5 1
AT-SIC-ZC6307CE 35 80 21 1.5 43 47 72 1.5
AT-SIC-ZC6407CE 35 100 25 1.5 43 / 92 1.5
AT-SIC-ZC6808CE 40 52 7 0.3 42 42 50 0.3
AT-SIC-ZC6908CE 40 62 12 0.6 44 46 58 0.6
AT-SIC-ZC16008CE 40 68 9 0.3 42 / 66 0.3
AT-SIC-ZC6008CE 40 68 15 1 45 47.5 63 1
AT-SIC-ZC6208CE 40 80 18 1.1 46.5 50.5 73.5 1
AT-SIC-ZC6308CE 40 90 23 1.5 48 53 80 1.5
AT-SIC-ZC6408CE 40 110 27 2 49 / 101 2
AT-SIC-ZC6809CE 45 58 7 0.3 47 47.5 56 0.3
AT-SIC-ZC6909CE 45 68 12 0.6 49 50 64 0.6
AT-SIC-ZC16009CE 45 75 10 0.6 49 / 71 0.6
AT-SIC-ZC6009CE 45 75 16 1 50 53.5 70 1
AT-SIC-ZC6209CE 45 85 19 1.1 51.5 55.5 78.5 1
AT-SIC-ZC6309CE 45 100 25 1.5 53 61.5 92 1.5
AT-SIC-ZC6409CE 45 120 29 2 54 / 111 2
AT-SIC-ZC6810CE 50 65 7 0.3 52 52.5 63 0.3
AT-SIC-ZC6910CE 50 72 12 0.6 54 55 68 0.6
AT-SIC-ZC16010CE 50 80 10 0.6 54 / 76 0.6
AT-SIC-ZC6010CE 50 80 16 1 55 58.5 75 1
AT-SIC-ZC6210CE 50 90 20 1.1 56.5 60 83.2 1
AT-SIC-ZC6310CE 50 110 27 2 59 68 101 2
AT-SIC-ZC6410CE 50 130 31 2.1 61 / 119 2
AT-SIC-ZC6811CE 55 72 9 0.3 57 59 70 0.3
AT-SIC-ZC6911CE 55 80 13 1 60 61.5 75 1
AT-SIC-ZC16011CE 55 90 11 0.6 59 / 86 0.6
AT-SIC-ZC6011CE 55 90 18 1.1 61.5 64 83.5 1
AT-SIC-ZC6211CE 55 100 21 1.5 63 66.5 92 1.5
AT-SIC-ZC6311CE 55 120 29 2 64 72.5 111 2
AT-SIC-ZC6411CE 55 140 33 2.1 66 / 129 2
AT-SIC-ZC6812CE 60 78 10 0.3 62 64 76 0.3
AT-SIC-ZC6912CE 60 85 13 1 65 66 80 1
AT-SIC-ZC16012CE 60 95 11 0.6 64 / 91 0.6
AT-SIC-ZC6012CE 60 95 18 1.1 66.5 69 88.5 1
AT-SIC-ZC6212CE 60 110 22 1.5 68 74.5 102 1.5
AT-SIC-ZC6312CE 60 130 31 2.1 71 79 119 2
AT-SIC-ZC6412CE 60 150 35 2.1 71 139 2
AT-SIC-ZC6813CE 65 85 10 0.6 69 69 81 0.6
AT-SIC-ZC6913CE 65 90 13 1 70 71.5 85 1
AT-SIC-ZC16013CE 65 100 11 0.6 69 / 96 0.6
AT-SIC-ZC6013CE 65 100 18 1.1 71.5 73 93.5 1
AT-SIC-ZC6213CE 65 120 23 1.5 73 80 112 1.5
AT-SIC-ZC6313CE 65 140 33 2.1 76 85.5 129 2
AT-SIC-ZC6814CE 70 90 10 0.6 74 74.5 86 0.6
AT-SIC-ZC6914CE 70 100 16 1 75 77.5 95 1
AT-SIC-ZC16014CE 70 110 13 0.6 74 / 106 0.6
AT-SIC-ZC6014CE 70 110 20 1.1 76.5 80.5 103.5 1
AT-SIC-ZC6214CE 70 125 24 1.5 78 84 117 1.5
AT-SIC-ZC6314CE 70 150 35 2.1 81 92 139 2
AT-SIC-ZC6815CE 75 95 10 0.6 79 79.5 91 0.6
AT-SIC-ZC6915CE 75 105 16 1 80 82 100 1
AT-SIC-ZC16015CE 75 115 13 0.6 79 / 111 0.6
AT-SIC-ZC6015CE 75 115 20 1.1 81.5 85.5 108.5 1
AT-SIC-ZC6215CE 75 130 25 1.5 83 90 122 1.5
AT-SIC-ZC6816CE 80 100 10 0.6 84 84.5 96 0.6
AT-SIC-ZC6916CE 80 110 16 1 85 87.5 105 1
AT-SIC-ZC16016CE 80 125 14 0.6 84 / 121 0.6
AT-SIC-ZC6016CE 80 125 22 1.1 86.5 91 118.5 1
AT-SIC-ZC6216CE 80 140 26 2 89 95.5 131 2
AT-SIC-ZC6817CE 85 110 13 1 90 90.5 105 1
AT-SIC-ZC6917CE 85 120 18 1.1 91.5 94.5 113.5 1
AT-SIC-ZC16017CE 85 130 14 0.6 89 / 126 0.6
AT-SIC-ZC6017CE 85 130 22 1.1 91.5 96 123.5 1
AT-SIC-ZC6217CE 85 150 28 2 94 102 141 2
AT-SIC-ZC6818CE 90 115 13 1 95 95.5 110 1
AT-SIC-ZC6918CE 90 125 18 1.1 96.5 98.5 118.5 1
AT-SIC-ZC16018CE 90 140 16 1 95 / 135 1
AT-SIC-ZC6018CE 90 140 24 1.5 98 103 132 1.5
AT-SIC-ZC6819CE 95 120 13 1 100 102 115 1
AT-SIC-ZC6919CE 95 130 18 1.1 101.5 104 123.5 1
AT-SIC-ZC16019CE 95 145 16 1 100 / 140 1
AT-SIC-ZC6019CE 95 145 24 1.5 103 109 137 1.5
AT-SIC-ZC6820CE 100 125 13 1 105 106 120 1
AT-SIC-ZC6920CE 100 140 20 1.1 106.5 111 133.5 1
AT-SIC-ZC16020CE 100 150 16 1 105 / 145 1
AT-SIC-ZC6020CE 100 150 24 1.5 108 113 142 1.5
AT-SIC-ZC6821CE 105 130 13 1 110 111 125 1
AT-SIC-ZC6921CE 105 145 20 1.1 111.5 116 138.5 1
AT-SIC-ZC6822CE 110 140 16 1 115 117 135 1
AT-SIC-ZC6922CE 150 20 1.1 116.5 121 143.5 1
AT-SIC-ZC6824CE 120 150 16 1 125 127 145 1
AT-SIC-ZC6924 120 165 22 1.1
AT-SIC-ZC16024 120 180 19 1
AT-SIC-ZC6024 120 180 28 2
AT-SIC-ZC6224 120 215 40 2.1
AT-SIC-ZC6324 120 260 55 3
AT-SIC-ZC6826 130 165 18 1.1
AT-SIC-ZC6926 130 180 24 1.5
AT-SIC-ZC16026 130 200 22 1.1
AT-SIC-ZC6026 130 200 33 2
AT-SIC-ZC6226 130 230 40 3
AT-SIC-ZC6326 130 280 58 4
AT-SIC-ZC6828 140 175 18 1.1
AT-SIC-ZC6928 140 190 24 1.5
AT-SIC-ZC16028 140 210 22 1.1
AT-SIC-ZC6028 140 210 33 2
AT-SIC-ZC6228 140 250 42 3
AT-SIC-ZC6328 140 300 62 4
AT-SIC-ZC6830 150 190 20 1.1
AT-SIC-ZC6930 150 210 28 2
AT-SIC-ZC16030 150 225 24 1.1
AT-SIC-ZC6030 150 225 35 2.1
AT-SIC-ZC6230 150 270 45 3
AT-SIC-ZC6330 150 320 65 4
AT-SIC-ZC60/22 22 44 12 0.6
AT-SIC-ZC62/22 22 50 14 1
AT-SIC-ZC63/22 22 56 16 1.1
AT-SIC-ZC60/28 28 52 12 0.6
AT-SIC-ZC62/28 28 58 16 1
AT-SIC-ZC63/28 28 68 18 1.1
AT-SIC-ZC60/32 33 58 13 1
AT-SIC-ZC62/32 33 65 17 1
AT-SIC-ZC63/32 33 75 20 1.1
AT-SIC-ZC603CE 3 9 3
AT-SIC-ZC606CE 6 17 6
AT-SIC-ZCMR117 7 11 3
AT-SIC-ZCMR128 8 12 3.5
AT-SIC-ZCMR85 5 8 2.5
AT-SIC-ZCMR63-1 3 6 2.5
AT-SIC-ZCMR85-1 5 8 2
AT-SIC-ZCMR148 8 14 4
AT-SIC-ZCMR84 4 8 2
AT-SIC-ZCMR126 6 12 4
AT-SIC-ZCMR74-1 4 7 2
AT-SIC-ZCMR84-1 4 8 3
AT-SIC-ZCMR74 4 7 2.5
AT-SIC-ZCMR148 8 14 3.5
AT-SIC-ZCMR63 3 6 2
AT-SIC-ZCMR103 3 10 4
AT-SIC-ZCMR104 4 10 4
AT-SIC-ZCMR105 5 10 3
AT-SIC-ZCMR105-1 5 10 4
AT-SIC-ZCMR106 6 10 2.5
AT-SIC-ZCMR106-1 6 10 3
AT-SIC-ZCMR115 5 11 4
AT-SIC-ZCMR52 2 5 2.5
AT-SIC-ZCMR62 2 6 2.5
AT-SIC-ZCMR94 4 9 3
AT-SIC-ZCMR95 5 9 3
AT-SIC-ZCR188 6.35 12.7 4.763
AT-SIC-ZCR6 9.525 22.225 5.556

SSiC vs RBSiC for Silicon Carbide Bearing Applications

Material Option Suitable Use Selection Notes
Sintered Silicon Carbide, SSiC Strong chemical resistance, high hardness, demanding pump and corrosion service. Better choice when corrosion resistance and wear stability are more important than machining flexibility.
Reaction-Bonded Silicon Carbide, RBSiC Larger or more complex geometries, mechanical components, and cost-sensitive custom parts. Useful when dimensional complexity, size, or production route needs more flexibility.
Final Material Selection Application-specific The final choice should be based on fluid chemistry, temperature, load, shaft design, clearance, and cost target.

ADCERAX can review both material route and bearing geometry before production. The goal is not only to choose a hard ceramic material, but also to match the SiC grade, surface finish, clearance, and installation interface with the real operating condition.

Packaging for Silicon Carbide Bearings

Silicon carbide bearings are packed to reduce the risk of edge chips, surface scratches, moisture exposure, and impact damage during transport. ADCERAX uses protective film, cushioning materials, reinforced inner cartons, and export-grade outer packaging according to bearing size, quantity, and shipping route.

For polished or precision-ground bearing surfaces, separated packaging and additional surface protection are recommended.

ADCERAX® Packaging of Silicon Carbide Bearing

Where Silicon Carbide Bearings Are Used

ADCERAX® Silicon Carbide Bearing addresses performance limitations commonly encountered in high-temperature, corrosive, and particle-rich mechanical environments where metal and oxide-based bearings show accelerated degradation. Its thermal stability, corrosion resistance, and low-expansion microstructure enable consistent operation across long duty cycles without clearance drift.

  • Chemical Pump and Process Fluid Circulation Systems

    Silicon carbide bearings are widely used in chemical pumps and fluid circulation systems where acids, alkalis, chlorides, or oxidizing media may attack metal bearing surfaces. SiC helps maintain a stable contact surface in corrosive environments and can reduce the risk of pitting, swelling, and process contamination.

    For pump applications, buyers should confirm the process fluid, pH range, solid content, shaft speed, expected load, and whether the bearing works in a submerged, wet-running, or lubrication-restricted condition.

  • Slurry Pumps, Sump Pumps, and Abrasive Particle Service

    In slurry pumps and sump pump components, bearing surfaces may be exposed to hard particles, mineral solids, suspended metal fines, or abrasive process media. The high hardness of silicon carbide helps resist surface scoring and helps maintain more predictable rotation over time.

    This application is especially relevant when conventional metal bearings experience rapid wear growth, increased torque, vibration, or unstable running behavior in particle-loaded systems.

  • Furnace Drives and High-Temperature Motion Assemblies

    Silicon carbide bearings can be considered for furnace drive systems, thermal processing machinery, and high-temperature motion assemblies where metallic bearing materials may soften, oxidize, or lose dimensional stability.

    For these applications, the full design should be checked together with shaft material, thermal expansion mismatch, heating rate, cooling rate, load direction, atmosphere, and installation clearance.

  • Dry-Running and Clean-Process Equipment

    Some process environments cannot tolerate oil or grease contamination. Silicon carbide bearing surfaces can support selected dry-running or low-lubrication conditions when the load, speed, heat generation, and mating surface are properly reviewed.

    This makes SiC bearing components useful for clean-process equipment, chemical handling systems, and special machinery where lubricant compatibility is a concern.

ADCERAX Silicon Carbide Bearing Use and Handling Guide

Proper use of silicon carbide bearings helps maintain stable rotation, reduce avoidable wear, and support safe operation under chemical, thermal, and mechanical stress. Before installation, confirm that the shaft, housing, process media, temperature range, and load direction match the bearing design.

  • Operating Conditions

    1. Chemical and Temperature Compatibility
    Confirm compatibility between the bearing, process media, and surrounding equipment. Sudden changes in chemical concentration or temperature may create local stress at the raceway or contact surface.

    2. Thermal Cycling Control
    Avoid rapid heating or cooling whenever possible. Although silicon carbide has low thermal expansion, connected metal or ceramic parts may expand differently and affect clearance.

    3. Particle and Slurry Exposure
    Monitor solids concentration in slurry or circulating media. Excessive particles near the bearing track may increase abrasive wear and affect torque stability.

  • Installation Guidelines

    1. Shaft and Housing Preparation
    The shaft surface should be smooth, clean, burr-free, and properly aligned with the housing bore. Poor alignment may cause point loading and uneven wear.

    2. Controlled Press-Fit Handling
    Apply force evenly during installation. Excessive or uneven pressure may damage the bearing race or distort the housing.

    3. Correct Orientation
    Install the bearing according to the required axial or radial load direction. Incorrect orientation may increase friction and reduce running stability.

  • Maintenance Practices

    1. Vibration Monitoring
    Track vibration during operation. Rising vibration may indicate early surface wear, shaft misalignment, or particle accumulation.

    2. Clean Operation
    Remove debris, corrosion by-products, or process powders promptly. Clean contact surfaces help maintain smooth rotation and reduce abrasive interaction.

    3. Lubrication Check
    When lubrication is used, confirm that it is clean and chemically compatible with the working environment. Contaminated lubricant may introduce micro-abrasion or chemical attack.

  • Storage and Handling

    1. Moisture and Contaminant Protection
    Store bearings in sealed packaging and keep them away from moisture, dust, and airborne impurities before installation.

    2. Stable Storage Temperature
    Avoid storage near heat sources or areas with rapid temperature changes. Stable storage conditions help protect bearing surfaces and nearby packaging materials.

    3. Careful Handling
    Avoid dropping, striking, or stacking bearings directly against hard surfaces. Use padded surfaces and protective gloves to reduce the risk of hidden chips or raceway damage.

Silicon Carbide Bearing FAQs

  1. Q1: What applications are silicon carbide bearings used for?

    Silicon carbide bearings are commonly used in chemical pumps, slurry pumps, sump pumps, furnace drive assemblies, powder-handling equipment, and dry-running machinery. They are selected when corrosion, abrasive particles, high temperature, or lubricant contamination may reduce the reliability of metal bearings.

  2. Q2: When should I choose silicon carbide instead of silicon nitride or zirconia?

    Silicon carbide is usually preferred when corrosion resistance, high hardness, thermal conductivity, and abrasive wear resistance are key requirements. Silicon nitride may be considered for high-speed rolling elements, while zirconia may be selected when toughness and impact behavior are more important. The final choice should depend on load, speed, media, temperature, and mating material.

  3. Q3: Can silicon carbide bearings run without lubrication?

    Silicon carbide can support selected dry-running or low-lubrication conditions, but the design must be reviewed carefully. Load, speed, heat generation, shaft material, surface finish, and operating atmosphere all affect dry-running performance. For critical systems, ADCERAX recommends confirming the full working condition before material selection.

  4. Q4: What information is needed for a custom SiC bearing quotation?

    A drawing or sample is preferred. Buyers should provide inner diameter, outer diameter, width, tolerance, bearing type, shaft material, operating temperature, process media, load direction, speed, lubrication condition, quantity, and inspection requirements. These details help ADCERAX review manufacturability and material suitability.

  5. Q5: How do I choose between SSiC and RBSiC bearing materials?

    SSiC is often selected for stronger corrosion resistance and demanding wear environments, while RBSiC can be suitable for larger or more complex bearing geometries. The decision should be based on chemical exposure, temperature, mechanical load, size, machining requirements, and cost target.

  6. Q6: What affects the service life of a silicon carbide bearing?

    Service life is affected by material grade, surface finish, shaft alignment, clearance, load, speed, temperature cycling, process fluid, abrasive particle content, and installation accuracy. A SiC bearing is easier to specify correctly when the ceramic surface, mating material, and operating condition are reviewed as one complete system.

  7. Q7: Can ADCERAX manufacture silicon carbide bearings from drawings or samples?Yes. ADCERAX can review custom silicon carbide bearing requirements based on drawings, samples, or equipment interface details. The review can include material selection, dimensions, surface finish, tolerance, application environment, and packaging requirements before quotation.
Quick Quote Now
customize size

Custom Silicon Carbide Bearing Manufacturing Support

ADCERAX supports custom silicon carbide bearing components based on drawings, samples, or equipment interface requirements. Common design review points include inner diameter, outer diameter, width, groove design, raceway profile, flatness, chamfer, shaft fit, mating material, surface finish, and inspection requirements.

Structural and Dimensional Configuration Options

Each configuration can be reviewed according to mechanical load, shaft fit, contact surface, and expected rotation condition.

  • Ring Geometry Selection
    adjusted to match rotary stability needs

  • Rolling Element Form
    chosen to optimize motion under load

  • Contact Surface Profile
    refined based on frictional performance targets

  • Interface Fit Strategy
    defined to support predictable alignment behavior

Material, Surface, and Functional Adaptations

Each adaptation should be evaluated together with thermal exposure, chemical media, particle content, and lubrication condition.

  • Material System Choice
    selected according to thermal and chemical exposure

  • Surface Finish Grade
    refined to enhance raceway wear resistance

  • Lubrication Interface Design
    prepared to suit dry-run or assisted operation

  • Environmental Compatibility Adjustment
    aligned with corrosive or abrasive conditions

View Our Custom Capabilities
Start Customizing Today

Related Products

Silicon carbide mechanical seal ring for pump and chemical fluid service

Custom Silicon Carbide Mechanical Seal Rings for Pumps and Harsh Fluids

Silicon carbide lined internal gear pump for abrasive and viscous fluid transfer

SiC Lined Internal Gear Pump for Abrasive, Viscous and Corrosive Fluids

Silicon carbide lined external gear pump for corrosive process fluids

Silicon Carbide Lined External Gear Pump for Chemical Metering

Custom silicon carbide plates for sintering setters and furnace fixtures

Custom Silicon Carbide Plates for Sintering and Furnace Fixtures

Not Sure Which Material Fits Your Application?

Our engineers are here to help. Upload your drawing or tell us your use case — Our team will review your request and respond within 24 hours.
👉 Talk to Engineer

ADCERAX - Your Trusted Advanced Ceramics Manufacturing Partner

Direct factory manufacturing with comprehensive ceramic materials expertise and global supply capabilities

China-Based Manufacturer

ADCERAX supplies ceramic components for overseas OEMs, equipment builders, and labs.

Custom Drawing Support

We review drawings, dimensions, materials, and application conditions before quotation.

Ceramic Process Control

Forming, sintering, machining, grinding, and finishing are arranged by part requirements.

Pre-Shipment Inspection

Dimensional checks, visual inspection, and packaging review help reduce procurement risk.

Cooperate Now

Get in Touch with Us

Our team will be happy to respond to you in less than 24 hours.

Pingxiang Factory — Silicon carbide, silicon nitride, high-temperature ceramics

Quick Quotation

*Our team will answer your inquiries within 24 hours.

*Your information will be kept strictly confidential.

Ready to Solve Your Engineering Challenge?

Partner with ADCERAX for reliable, high-performance advanced ceramic solutions. Our engineers are ready to discuss your project.

E-mail

info@adcerax.com

Phone

+(86) 0731-74427743 | WhatsApp: +(86) 19311583352

Response Time

Within 24 hours

Get a Free Project Review

Quick Quote

The more details you provide, the faster we can quote.

*We respond within 24 hours. All inquiries are confidential.

Get Your Custom Solution

The more details you provide, the faster we can respond.

customize size

*We respond within 24 hours. All inquiries are confidential.

Download Catalog