{"id":697,"date":"2025-05-17T11:52:49","date_gmt":"2025-05-17T11:52:49","guid":{"rendered":"https:\/\/cndlfh.com\/?p=697"},"modified":"2025-06-14T12:07:33","modified_gmt":"2025-06-14T12:07:33","slug":"%e5%90%84%e7%a7%8d%e6%94%af%e5%ba%a7%e7%b1%bb%e5%9e%8b%e5%b8%a6%e6%9c%ba%e5%8a%a0%e5%b7%a5%e6%88%90%e5%93%81%e5%b1%95%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/cndlfh.com\/en\/697\/","title":{"rendered":"Various bearing types with machined finished products (overview of bearing types and their industrial applications)"},"content":{"rendered":"

Various bearing types withFinished Machined Products<\/a>Showcase: Professional Guide and Example Explanation
\nOverview of support types and their industrial applications
\nBearings are indispensable components in mechanical systems and building structures, assuming the important functions of support, fixation and cushioning. In the industrial sector, the choice of bearings has a direct impact on the stability, service life and operational efficiency of equipment. In this article, we will provide you with a comprehensive introduction to various types of bearings and show examples of finished products after precision machining to help you understand the characteristics and application scenarios of different bearings.<\/p>\n

Characteristics and machining points of fixed bearings\"\"<\/p>\n

Fixed bearings are one of the most common types of bearings and are characterised by their ability to completely limit the displacement of the supported component. The finished precision-machined fixed bearing typically has the following characteristics:<\/p>\n

High-precision mounting holes to ensure a perfect match with the equipment<\/p>\n

Heat-treated, high-strength materials for long-term stable support<\/p>\n

Fine surface treatment, including anti-corrosion processes such as galvanisation, blackening or spraying<\/p>\n

Tight dimensional tolerance control (usually within \u00b10.05mm)<\/p>\n

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When machining the fixed support, special attention needs to be paid to the selection of reference surfaces and machining sequence arrangements to ensure that the perpendicularity and parallelism of the installation surface requirements.<\/p>\n

Design and presentation of sliding bearings
\nSliding bearings allow displacement of the supported component in a specific direction and are particularly suitable for applications where thermal expansion and contraction are significant. A display of our finished machined sliding bearings includes:<\/p>\n

PTFE sliding bearing: adopts PTFE sliding material, friction coefficient is as low as 0.05-0.10.<\/p>\n

Stainless steel sliding bearings: suitable for high temperature or corrosive environments<\/p>\n

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Composite sliding bearings: combining the advantages of metallic and non-metallic materials<\/p>\n

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The key to machining sliding bearings lies in the control of the surface roughness of the sliding surface (Ra\u22640.8\u03bcm is usually required) and the precise grasp of the fit gap (generally 0.1-0.3mm).<\/p>\n

Machining process for various types of bearings
\nRaw material selection and pre-treatment
\nDifferent bearing types have different material requirements:<\/p>\n

 <\/p>\n

Ordinary carbon steel (Q235B): economic choice for general environments<\/p>\n

Stainless steel (304\/316): where high corrosion resistance is required<\/p>\n

Alloy steel (40Cr\/42CrMo): high load, high strength application scenarios<\/p>\n

Material pre-treatment includes processes such as straightening, descaling and flaw detection to ensure that raw materials are free from internal defects and surface blemishes.<\/p>\n

Precision machining stages in detail<\/p>\n

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Turning process: complete the support body of the external circle, end face and internal hole machining<\/p>\n

Milling process: machining of mounting planes, keyways and various shaped structures<\/p>\n

Drilling and tapping: complete machining of mounting holes and threaded holes<\/p>\n

Grinding finishing: precision grinding of critical mating surfaces<\/p>\n

Surface treatment and quality inspection<\/p>\n

 <\/p>\n

After machining, the support needs to go through:<\/p>\n

Sandblasting: improves surface adhesion and aesthetics<\/p>\n

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Anti-corrosion treatment: plating, oxidation or spraying according to the use of the environment.<\/p>\n

Dimensional inspection: full-size inspection using CMMs<\/p>\n

Performance testing: including load testing, fatigue testing, etc.<\/p>\n

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Examples of machining of special bearing types
\nProcessing technology for seismic bearings
\nSeismic bearings require special energy dissipating structures with machined features including:<\/p>\n

Multi-layer steel and rubber alternating laminated structure<\/p>\n

High-precision shear panel processing<\/p>\n

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Precision machining of large diameter anchor bolt holes<\/p>\n

Assembly accuracy control of special damping structures<\/p>\n

Manufacturing process for spherical bearings<\/p>\n

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Ball bearings are widely used in bridges and large equipment because of their multi-directional rotation capability, and their machining difficulties are:<\/p>\n

Machining of spherical mating parts (sphericity is usually required to be \u22640.05mm)<\/p>\n

 <\/p>\n

Inlay process for PTFE slip sheets<\/p>\n

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Precision machining of sealing structures<\/p>\n

Integral pre-compression assembly technology<\/p>\n

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Bearing selection guide and technical parameters comparison
\nSelection of bearings by type of load
\nLoad type Recommended support Machining characteristics<\/p>\n

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Static loads Fixed bearings Emphasis on structural strength and mounting accuracy\"\"<\/p>\n

Dynamic loads Elastomeric bearings Focus on quality of processing of damping elements\"\"<\/p>\n

Shock loads Hydraulic mounts Precision-fit piston construction required
\nThermal Displacement Sliding Bearings Sliding Surface Finish is Critical
\nSelection of support according to the use of the environment\"\"<\/p>\n

Corrosive environments: Stainless steel or special coated bearings are preferred.<\/p>\n

High-temperature environment: need to consider the thermal expansion coefficient matching and high-temperature strength<\/p>\n

Cleanrooms: Choosing Dust-Free Designs and Anti-Shedding Structures<\/p>\n

Outdoor exposure: need for enhanced UV ageing treatments<\/p>\n

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