{"product_id":"mitsubishi-electric-gm-spb-gm-sp-series-geared-motor","title":"Mitsubishi Electric GM-SPB GM-SP Series Geared Motor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDelivering robust mechanical speed reduction and high torque transmission, the Mitsubishi Electric GM-SPB serves as a reliable medium-capacity industrial drive solution within the GM-SP Series. Equipped with a built-in \u003cstrong\u003eDC spring brake\u003c\/strong\u003e and a precision-engineered \u003cstrong\u003e1:25 gear reduction ratio\u003c\/strong\u003e, this \u003cstrong\u003e1.5kW three-phase motor\u003c\/strong\u003e is optimized for precise start-stop control, holding torque, and continuous duty cycles in high-demand automated systems. The integrated brake design ensures instantaneous deceleration and failsafe load holding during power-off events, protecting downstream machinery from backdriving.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 20px;\"\u003e\n  \u003cli\u003eHigh-torque mechanical efficiency with a precise 1:25 helical gear train reduction.\u003c\/li\u003e\n  \u003cli\u003eIntegrated DC spring-loaded safety brake for fast-acting deceleration and secure static load-holding.\u003c\/li\u003e\n  \u003cli\u003eRobust three-phase induction motor designed for continuous duty (S1) at 50Hz mains frequency.\u003c\/li\u003e\n  \u003cli\u003eRugged cast-iron\/alloy housing providing high structural rigidity and heat dissipation.\u003c\/li\u003e\n  \u003cli\u003eOptimized internal sealing to prevent lubricant leakage and protect internal gears from contamination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 20px;\"\u003e\n  \u003cli\u003eHeavy material handling and palletizing conveyor systems.\u003c\/li\u003e\n  \u003cli\u003eAutomated overhead cranes, hoists, and vertical lift mechanisms.\u003c\/li\u003e\n  \u003cli\u003eAutomobile assembly lines and transfer shuttle carts.\u003c\/li\u003e\n  \u003cli\u003ePackaging machinery requiring precise indexing and immediate holding torque.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications Table\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align: left; padding: 12px; border-bottom: 2px solid #cbd5e0; font-weight: bold; color: #1a365d;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 12px; border-bottom: 2px solid #cbd5e0; font-weight: bold; color: #1a365d;\"\u003eTechnical Value \/ Rating\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eModel \/ Article Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003eGM-SPB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003eGM-SP Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eRated Output Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e1.5 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eNominal Gear Ratio\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e1:25 (1\/25)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eNumber of Phases\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e3-Phase\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eRated Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e50 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eBrake Mechanism\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003eDC Spring Brake (Failsafe Type)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eOperating Temperature Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e-15 to +40 degC (non-condensing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eAmbient Humidity Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e90% RH or less\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eNet Unit Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e36.2 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-bottom: 1px solid #e2e8f0;\"\u003e37.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen replacing legacy GM-S series drives, note that the physical shaft height and mounting footprint of the GM-SP series (such as the GM-SPB) are designed for backward integration but require checking the exact output shaft diameter. Standard GM-SP units (non-brake) cannot be retrofitted in the field with the brake assembly; the 'B' designation dictates a factory-assembled extended rear motor housing containing the integrated DC brake coil and friction disc assembly.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eOperating the geared motor at ambient temperatures below -15 degC can cause standard lubricants to thicken excessively, leading to increased starting current and potential overload tripping. For continuous low-temperature use, cold-temperature grease is mandatory. Additionally, avoid deploying the DC spring brake for dynamic braking purposes during normal operation; use VFD deceleration ramps to stop the load, applying the mechanical brake only when the motor speed approaches zero to maximize friction plate life.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe DC brake coil on the GM-SPB is typically powered via an internal rectifier. To achieve rapid brake response during emergency stop sequences, switch the DC side of the brake circuit rather than the AC input side of the rectifier. Wiring the brake contactor interlocked with the main motor contactor is essential to ensure the motor never attempts to drive against a closed mechanical brake, which will lead to thermal meltdown of the motor windings and brake linings.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 5px;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all 3-phase AC power lines and auxiliary brake power circuits before commencing mechanical mounting or wiring. Residual DC charge on capacitor-assisted brake power packs can present shock hazards; verify absolute zero voltage across all terminal blocks before touching connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003eMount the geared motor securely on a flat, vibration-free surface using high-tensile fasteners to ensure perfect alignment of the output shaft with the driven load.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003eRoute the mains power and brake control cables through separate conduit entries in the terminal box to isolate electromagnetic noise.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003eEnsure the brake rectifier is correctly wired to release the mechanical holding mechanism concurrently with motor energization.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102132822379,"sku":"GM-SPB","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/gm-spb-a5pyxr4wcbq.png?v=1776137572","url":"https:\/\/www.plcprotech.com\/products\/mitsubishi-electric-gm-spb-gm-sp-series-geared-motor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}