{"product_id":"plastic-bushes-bearing-bushes","title":"Plastic Bushes \u0026 Bearing Bushes for Industrial Shaft \u0026 Pivot Applications","description":"\u003ch3\u003ePlastic Bushes \u0026amp; Bearing Bushes for Industrial Shaft \u0026amp; Pivot Applications\u003c\/h3\u003e\n\u003cp\u003eKaybin manufactures precision-machined plastic bushes and polymer bearing bushes for rotating shafts, pivot points and oscillating assemblies where low friction, corrosion resistance and controlled wear are required.\u003c\/p\u003e\n\u003cp\u003eThese are rigid engineering plastic bushes — not rubber suspension bushes or polyurethane vibration mounts. Each bush is machined to drawing or  sample and configured for load, speed, clearance and environmental exposure in industrial and OEM equipment across South Africa and Africa.\u003c\/p\u003e\n\u003ch4\u003eWhat Are Plastic Bushes?\u003c\/h4\u003e\n\u003cp\u003ePlastic bushes (also called polymer bushes, plastic bearing bushes or sleeve bushes) are cylindrical bearing elements installed between a shaft and housing to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupport radial load\u003c\/li\u003e\n\u003cli\u003eReduce friction\u003c\/li\u003e\n\u003cli\u003ePrevent metal-to-metal contact\u003c\/li\u003e\n\u003cli\u003eControl alignment and wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThey are commonly used as a metal-replacement solution where bronze, brass or steel bushes would otherwise require lubrication or suffer corrosion.\u003c\/p\u003e\n\u003ch4\u003eBush Types Covered\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSleeve bushes (plain cylindrical)\u003c\/li\u003e\n\u003cli\u003eFlange bushes\u003c\/li\u003e\n\u003cli\u003ePlain bearing bushes\u003c\/li\u003e\n\u003cli\u003eShouldered bushes\u003c\/li\u003e\n\u003cli\u003eCustom-machined geometries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis page excludes rubber suspension bushes, elastomer mounts and automotive components.\u003c\/p\u003e\n\u003ch4\u003eIndustrial Applications\u003c\/h4\u003e\n\u003cp\u003ePlastic bushes are widely used in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConveyor rollers and guides\u003c\/li\u003e\n\u003cli\u003ePackaging and filling machinery\u003c\/li\u003e\n\u003cli\u003ePumps and valve linkages\u003c\/li\u003e\n\u003cli\u003eMining and bulk handling equipment\u003c\/li\u003e\n\u003cli\u003eAgricultural machinery\u003c\/li\u003e\n\u003cli\u003eFood processing systems\u003c\/li\u003e\n\u003cli\u003eAutomation and OEM assemblies\u003c\/li\u003e\n\u003cli\u003ePivot points and hinge mechanisms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSuitable for rotating, oscillating or sliding motion.\u003c\/p\u003e\n\u003ch4\u003eMaterial Options \u0026amp; Performance Behaviour\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePTFE Bushes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery low coefficient of friction\u003c\/li\u003e\n\u003cli\u003eExcellent chemical resistance\u003c\/li\u003e\n\u003cli\u003eSuitable for dry-running applications\u003c\/li\u003e\n\u003cli\u003eUsed in aggressive media environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNylon Bushes (PA6 \/ PA66)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh strength and toughness\u003c\/li\u003e\n\u003cli\u003eGood wear resistance\u003c\/li\u003e\n\u003cli\u003eSuitable for moderate load applications\u003c\/li\u003e\n\u003cli\u003eMoisture absorption considered in clearance design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAcetal \/ POM Bushes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent dimensional stability\u003c\/li\u003e\n\u003cli\u003eLower moisture absorption than nylon\u003c\/li\u003e\n\u003cli\u003eStable running clearance under controlled duty\u003c\/li\u003e\n\u003cli\u003eGood wear performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUHMWPE Bushes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-low friction\u003c\/li\u003e\n\u003cli\u003eHigh abrasion resistance\u003c\/li\u003e\n\u003cli\u003eUsed in sliding and bulk handling systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHDPE Bushes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChemical resistant\u003c\/li\u003e\n\u003cli\u003eCost-effective for lighter-duty service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaterial selection considers media compatibility, operating temperature, radial load, surface speed and required service life.\u003c\/p\u003e\n\u003ch4\u003ePlastic vs Metal Bushes\u003c\/h4\u003e\n\u003cp\u003ePlastic bushes are often selected instead of bronze or steel because they offer:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrosion resistance\u003c\/li\u003e\n\u003cli\u003eLower weight\u003c\/li\u003e\n\u003cli\u003eReduced noise\u003c\/li\u003e\n\u003cli\u003eLower maintenance\u003c\/li\u003e\n\u003cli\u003eReduced galling risk\u003c\/li\u003e\n\u003cli\u003eAbility to operate without lubrication (material dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMetal bushes may tolerate higher temperatures, but engineered polymers eliminate lubrication requirements in many industrial applications.\u003c\/p\u003e\n\u003ch4\u003eNylon vs Acetal Bushes\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eNylon:\u003c\/strong\u003e Higher impact resistance and toughness; suitable for shock loading where dimensional drift is manageable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAcetal (POM):\u003c\/strong\u003e Greater dimensional stability; better suited to tight tolerance assemblies and moisture-sensitive environments.\u003c\/p\u003e\n\u003cp\u003eFinal material selection depends on duty cycle, environment and tolerance sensitivity.\u003c\/p\u003e\n\u003ch4\u003eEngineering \u0026amp; Specification Considerations\u003c\/h4\u003e\n\u003cp\u003ePlastic bush design typically evaluates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShaft diameter and surface finish\u003c\/li\u003e\n\u003cli\u003eHousing bore tolerance\u003c\/li\u003e\n\u003cli\u003eRadial load classification (light \/ medium \/ heavy duty)\u003c\/li\u003e\n\u003cli\u003eOperating speed (rpm)\u003c\/li\u003e\n\u003cli\u003ePV value (pressure × velocity relationship)\u003c\/li\u003e\n\u003cli\u003eRunning clearance\u003c\/li\u003e\n\u003cli\u003ePress-fit vs clearance-fit installation\u003c\/li\u003e\n\u003cli\u003eThermal expansion characteristics\u003c\/li\u003e\n\u003cli\u003eCreep under sustained load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIncorrect specification may result in bush creep, ovalisation, seizure, overheating or spinning in the housing.\u003c\/p\u003e\n\u003ch4\u003eCommon Failure Modes Addressed\u003c\/h4\u003e\n\u003cp\u003eProperly selected plastic bushes help prevent:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMetal scoring\u003c\/li\u003e\n\u003cli\u003eGalling\u003c\/li\u003e\n\u003cli\u003eShaft wear\u003c\/li\u003e\n\u003cli\u003eNoise and vibration\u003c\/li\u003e\n\u003cli\u003eDry-running seizure\u003c\/li\u003e\n\u003cli\u003eCorrosion-related locking\u003c\/li\u003e\n\u003cli\u003eLubrication starvation failures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification Inputs Required\u003c\/h4\u003e\n\u003cp\u003eTo manufacture the correct bush, provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShaft diameter (ID)\u003c\/li\u003e\n\u003cli\u003eHousing bore (OD)\u003c\/li\u003e\n\u003cli\u003eLength\u003c\/li\u003e\n\u003cli\u003eFlange diameter and thickness (if applicable)\u003c\/li\u003e\n\u003cli\u003eRadial load estimate\u003c\/li\u003e\n\u003cli\u003eOperating speed\u003c\/li\u003e\n\u003cli\u003eTemperature range\u003c\/li\u003e\n\u003cli\u003eMedia exposure (oil, water, slurry, chemicals)\u003c\/li\u003e\n\u003cli\u003eShaft surface finish (if known)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDrawings, CAD files or worn samples assist accurate replication and reverse engineering.\u003c\/p\u003e\n\u003ch4\u003eReplacement \u0026amp; OEM Support\u003c\/h4\u003e\n\u003cp\u003eKaybin supplies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement plastic bushes\u003c\/li\u003e\n\u003cli\u003eOEM bush replication\u003c\/li\u003e\n\u003cli\u003eConversion from bronze to polymer bushes\u003c\/li\u003e\n\u003cli\u003eCustom-machined bushes for discontinued equipment\u003c\/li\u003e\n\u003cli\u003eSmall batch and production machining\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManufactured in South Africa for industrial and OEM equipment across Africa.\u003c\/p\u003e","brand":"kaybin","offers":[{"title":"Default Title","offer_id":45262372503724,"sku":null,"price":0.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/4790\/6476\/files\/kaybin-plastic-bearing-bushes-shaft-bushes-engineering-plastics-africa_webp.webp?v=1769780748","url":"https:\/\/kaybin.co.za\/products\/plastic-bushes-bearing-bushes","provider":"Kaybin","version":"1.0","type":"link"}