{"product_id":"polyurethane-gear-coupling-elastomer-sleeve-j-hs-buffer-pad","title":"Polyurethane Gear Coupling Elastomer Sleeve | J\/HS Buffer Pad","description":"\n\u003ch2\u003ePolyurethane Gear Coupling Elastomer Sleeve – J\/HS Series Buffer Pad\u003c\/h2\u003e\n\u003cp\u003eKeep your air compressor, pump, and drive machinery running smoothly with this high-performance \u003cstrong\u003ePolyurethane Gear Coupling Elastomer Sleeve\u003c\/strong\u003e. Engineered from durable polyurethane rubber, this coupling spider insert acts as a flexible buffer between shaft hubs — absorbing mechanical vibration, dampening operational noise, and protecting connected equipment from sudden torque spikes and misalignment stress. Available in six standard J\/HS sizes to suit a wide range of industrial and workshop applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Polyurethane Construction:\u003c\/strong\u003e Outstanding wear resistance, oil resistance, and elasticity for long service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration Dampening:\u003c\/strong\u003e Flexible elastomer design absorbs vibration and reduces transmitted shock loads between coupled shafts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNoise Reduction:\u003c\/strong\u003e Cushioned tooth profile minimises operational noise compared to rigid metal couplings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application:\u003c\/strong\u003e Compatible with air compressors, hydraulic pumps, electric motors, generators, and general power transmission equipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Sizes Available:\u003c\/strong\u003e Choose the correct J\/HS designation for a precise, secure fit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Drop-in replacement for worn or damaged coupling inserts — no special tools required.\u003c\/li\u003e\n  \u003cli\u003eMade in Mainland China.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSize Reference Chart\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%; max-width:560px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n      \u003cth\u003eOption\u003c\/th\u003e\n      \u003cth\u003eSize Code\u003c\/th\u003e\n      \u003cth\u003eDimensions (OD × H × ID, mm)\u003c\/th\u003e\n      \u003cth\u003eTeeth\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e4J\u003c\/td\u003e\n\u003ctd\u003e58.7 × 34 × 31.8\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003e5J\u003c\/td\u003e\n\u003ctd\u003e74.6 × 44 × 39.7\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003ctd\u003e6J\u003c\/td\u003e\n\u003ctd\u003e95.3 × 54.6 × 47.6\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003e7J\u003c\/td\u003e\n\u003ctd\u003e110.4 × 64.5 × 55.6\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003e9J\u003c\/td\u003e\n\u003ctd\u003e152 × 87 × 76.2\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eF\u003c\/td\u003e\n\u003ctd\u003e10J\u003c\/td\u003e\n\u003ctd\u003e179.4 × 102 × 87.3\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyurethane Rubber (PU)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e J \/ HS Jaw-Type Gear Coupling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e 4J, 5J, 6J, 7J, 9J, 10J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAir compressors \u0026amp; pneumatic systems\u003c\/li\u003e\n  \u003cli\u003eHydraulic pumps \u0026amp; motors\u003c\/li\u003e\n  \u003cli\u003eElectric motors \u0026amp; generators\u003c\/li\u003e\n  \u003cli\u003eCNC machinery \u0026amp; conveyor systems\u003c\/li\u003e\n  \u003cli\u003eIndustrial power transmission drives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-60mpa-pressure-gauge-s60h-diesel-injector-nozzle-tester-8000psi\"\u003e0–60MPa Pressure Gauge for S60H Diesel Injector Nozzle Tester\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general workplace equipment safety standards and best practices, refer to the OSHA Mechanical Power Transmission Safety Guidelines.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Hirth_joint\" target=\"_blank\" rel=\"noopener\"\u003eHirth joint\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a polyurethane gear coupling elastomer sleeve used for?\u003c\/h4\u003e\n\u003cp\u003eA: A polyurethane gear coupling elastomer sleeve (also called a spider insert or jaw coupling buffer) sits between the two metal hubs of a jaw-type gear coupling. It transmits torque while absorbing vibration, dampening mechanical shock loads, and accommodating minor shaft misalignment — protecting both the motor and driven equipment from premature wear.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I choose the correct J\/HS size for my coupling?\u003c\/h4\u003e\n\u003cp\u003eA: Match the size code (4J, 5J, 6J, 7J, 9J, or 10J) to your existing coupling hub or refer to the dimensions listed in the size chart above (outer diameter, height, and inner diameter). If replacing a worn insert, check the markings on your coupling hubs or measure the existing elastomer directly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is polyurethane better than rubber for coupling inserts?\u003c\/h4\u003e\n\u003cp\u003eA: Polyurethane elastomers offer superior oil resistance, higher load capacity, and greater durability compared to standard natural rubber. They maintain their flexible properties over a wider operating temperature range, making them an excellent choice for air compressors and industrial machinery environments.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How difficult is it to install this elastomer sleeve?\u003c\/h4\u003e\n\u003cp\u003eA: Installation is straightforward — simply place the elastomer spider between the two jaw coupling hubs and press them together. No special tools or adhesives are required. It is recommended to inspect and replace the elastomer insert at regular maintenance intervals to ensure optimal performance.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a polyurethane gear coupling elastomer sleeve used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A polyurethane gear coupling elastomer sleeve (also called a spider insert or jaw coupling buffer) sits between the two metal hubs of a jaw-type gear coupling. It transmits torque while absorbing vibration, dampening mechanical shock loads, and accommodating minor shaft misalignment — protecting both the motor and driven equipment from premature wear.\"}}, {\"@type\": \"Question\", \"name\": \"How do I choose the correct J\/HS size for my coupling?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Match the size code (4J, 5J, 6J, 7J, 9J, or 10J) to your existing coupling hub or refer to the dimensions listed in the size chart above (outer diameter, height, and inner diameter). If replacing a worn insert, check the markings on your coupling hubs or measure the existing elastomer directly.\"}}, {\"@type\": \"Question\", \"name\": \"Is polyurethane better than rubber for coupling inserts?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Polyurethane elastomers offer superior oil resistance, higher load capacity, and greater durability compared to standard natural rubber. 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It is recommended to inspect and replace the elastomer insert at regular maintenance intervals to ensure optimal performance.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home \u0026 Living\", \"item\": \"https:\/\/oasis-select.com\/collections\/home-living\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Polyurethane Gear Coupling Elastomer Sleeve | J\/HS Buffer Pad\", \"item\": \"https:\/\/oasis-select.com\/products\/polyurethane-gear-coupling-elastomer-sleeve-j-hs-buffer-pad\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"A","offer_id":47746647294057,"sku":"14:115#A","price":22.86,"currency_code":"USD","in_stock":true},{"title":"B","offer_id":47746647326825,"sku":"14:371#B","price":22.86,"currency_code":"USD","in_stock":true},{"title":"C","offer_id":47746647359593,"sku":"14:757#C","price":22.86,"currency_code":"USD","in_stock":true},{"title":"D","offer_id":47746647392361,"sku":"14:760#D","price":22.86,"currency_code":"USD","in_stock":true},{"title":"E","offer_id":47746647425129,"sku":"14:933#E","price":22.86,"currency_code":"USD","in_stock":true},{"title":"F","offer_id":47746647457897,"sku":"14:1122#F","price":22.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sc6ac7722c4e74c9cb478a31b2af41484c.webp?v=1783057442","url":"https:\/\/oasis-select.com\/products\/polyurethane-gear-coupling-elastomer-sleeve-j-hs-buffer-pad","provider":"Oasis Select","version":"1.0","type":"link"}