{"product_id":"castair-rubber-cushion-base-mount-100mm-heavy-duty-rcbm100hu","title":"Castair Rubber Cushion Base Mount 100mm Heavy Duty - RCBM100HU","description":"\u003ch2\u003eCastair Rubber Cushion Base Mount 100mm Heavy Duty (RCBM100HU)\u003c\/h2\u003e\n\n\u003cp\u003eThe Castair RCBM100HU is a 100mm heavy-duty (HU) rubber cushion base mount for air compressor installations. The heavy-duty designation indicates a higher load rating compared to the standard double-cup RCBM100DC, making it appropriate for heavier compressor frames, larger motor weights, or installations where the mount must support more concentrated load at each foot location. Both are 100mm diameter — the HU version uses a different rubber compound or geometry to handle greater compressive loads without bottoming out.\u003c\/p\u003e\n\n\u003cp\u003eSpecific load ratings, deflection curves, and bolt patterns for the RCBM100HU were not published on castair.net at time of writing. Call us at 866-217-0063 with your compressor model and weight to confirm whether the DC or HU designation is appropriate for your application.\u003c\/p\u003e\n\n\u003ch3\u003eMount Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e RCBM100HU\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 100mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Heavy Duty (HU)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-duty rubber bonded to steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Air compressor vibration isolation — heavier compressor frames\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoad rating:\u003c\/strong\u003e Contact 866-217-0063 for confirmed load specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRCBM Mount Size and Rating Comparison\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM100DC:\u003c\/strong\u003e 100mm, double-cup — standard load rating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM100HU (this part):\u003c\/strong\u003e 100mm, heavy-duty — higher load capacity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM140DC:\u003c\/strong\u003e 140mm, double-cup — larger footprint, standard load\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM140HU:\u003c\/strong\u003e 140mm, heavy-duty — largest and highest rated in the RCBM series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCastair's standard flat vibration pads (VP100, 4\"x4\"x1\", or VP1004 set of 4) are appropriate for most piston compressor installations. The RCBM cup-style mounts provide more engineered isolation for larger rotary screw units or equipment with higher vibration loads.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Proper Vibration Isolation Matters\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous-duty operation:\u003c\/strong\u003e Rotary screw compressors run 100% duty — they never stop vibrating while running. The mount must handle sustained load, not just occasional use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStructure protection:\u003c\/strong\u003e Vibration conducted into concrete floors and building structures causes long-term fatigue damage. Proper isolation is part of a correct installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe and fitting protection:\u003c\/strong\u003e A compressor properly isolated on vibration mounts requires flex hose at the discharge connection — the small amount of movement allowed by the mounts will otherwise crack rigid piping connections over time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAcoustic isolation:\u003c\/strong\u003e Heavy-duty mounts reduce low-frequency vibration transmission into floors and walls more effectively than lighter mounts that are undersized for the load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTypically 4 mounts per compressor installation, one per base foot\u003c\/li\u003e\n  \u003cli\u003eMatch mount rating to the load — over-rated mounts do not dampen as well as properly loaded mounts\u003c\/li\u003e\n  \u003cli\u003eUse with metal flex hose at discharge connection to allow the mounts to function correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Castair RCBM100HU rubber cushion base mount, 100mm heavy-duty configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCastair authorized:\u003c\/strong\u003e OEM vibration mounts for Castair compressor installations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree tech support:\u003c\/strong\u003e 866-217-0063 — help selecting DC vs. HU and 100mm vs. 140mm for your specific compressor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull accessory lineup:\u003c\/strong\u003e Flex hose, ball valves, mounts, and installation kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342588993749,"sku":"RCBM100HU","price":73.84,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-rubber-cushion-base-mount-100mm-heavy-duty-rcbm100hu","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}