{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200030844D","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200030844D","canonicalUrl":"https://aoctrl.com/schneider/GBX1200030844D","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200030844D","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200030844D planetary gearbox, straight teeth, 120 mm diameter, 3:1 reduction ratio, 115 N.m continuous torque, 96% efficiency, IP54 shaft output.","salesMarkdown":"## Planetary gearbox, 120 mm frame, 3:1 ratio The GBX1200030844D is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with a 120 mm outer diameter housing in black anodized aluminium and a C 45 steel output shaft. It delivers a 3:1 reduction ratio, rated for 115 N.m continuous output torque and 184 N.m maximum, with 96% efficiency — the 3:1 ratio keeps the gear train simple and the losses low for a single-stage planetary. ## Torque, life, and mounting constraints Continuous torque is 115 N.m; maximum output torque hits 184 N.m — the margin above continuous covers brief acceleration peaks or stall events, but sustained operation above 115 N.m shortens the 30,000-hour service life at 100 rpm and 30 °C ambient. Maximum radial force on the shaft is 1500 N at 100 rpm for the full 30,000-hour life (2000 N for 10,000 hours); axial force limits are 2100 N and 2800 N respectively — both measured at mid-span on the output shaft, so an overhung load or a belt drive closer to the bearing face changes the effective rating. Mounts in any position — no oil-level orientation restriction — and the shaft output seal carries IP54, meaning it keeps out dust and splashing water but not pressurized washdown. ## Obsolete — sourcing through independent channels Available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. No pin-compatible or direct drop-in replacement is documented by Schneider, so a BOM review and possibly a frame-size change are needed if substituting. ## Backlash, rigidity, and noise floor Maximum torsional backlash is 8 arc-minutes — typical for a straight-tooth planetary at this price point; if the application needs less than 5 arc-min for servo positioning, a helical or low-backlash variant is required. Torsional rigidity is 12 N.m/arcmin, meaning the gearbox twists 1 arc-minute for every 12 N.m of applied torque — this stiffness is adequate for indexing and simple positioning but not for high-gain servo loops that need sub-arc-minute repeatability. Noise level is 65 dB at 1 m, no-load — audible but not loud for a 120 mm frame; under load the straight-tooth mesh will be slightly louder than a helical, but the 3:1 ratio keeps the tooth contact frequency moderate. ## Lubrication and temperature range Lubricated for life — no oil-change interval, no breather, no level plug. The grease fill is sealed at the factory and rated for the full 30,000-hour service life at 30 °C. Ambient operating temperature spans -25 to 90 °C — the grease stays fluid down to -25 °C and the anodised aluminium housing dissipates heat well at the upper end, though continuous torque should be derated above 30 °C per standard grease behaviour.","metaTitle":"Schneider Electric GBX1200030844D Planetary Gearbox, 3:1","metaDescription":"Schneider Electric GBX1200030844D planetary gearbox, 3:1 ratio, 115 N.m continuous torque, 96% efficiency. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"Efficiency":"96 %","Noise level":"65 dB at 1 m, no-load","Gear box type":"Straight teeth","Housing colour":"Black","Shaft material":"C 45","Reduction ratio":"3:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Moment Of Inertia":"2.63 g.cm²","Mounting position":"Any position","Compatibility code":"GBX","Torsional rigidity":"12 N.m/arcmin","Maximum output torque":"184 N.m","Service life in hours":"30000 h at 100 rpm at 30 °C","Additional information":"Lubricated for life","Maximum axial force Fa":"2100 N at 100 rpm, during 30000 hour at 30°C 2800 N at 100 rpm, during 10000 hour at 30°C","IP degree of protection":"Shaft output: IP54","Maximum radial force Fr":"1500 N at 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C 2000 N at 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C","Continuous output torque":"115 N.m","Gearbox external diameter":"120 mm","Product or component type":"Planetary gearbox","Maximum torsional backlash":"8 arc.min","Ambient Temperature For Operation":"-25...90 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2b8afbb21f72f7b6a0606b3db491d4e5.pdf","sourceUrl":"https://www.se.com/ie/en/product/GBX1200030844D/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-31-8arcmin-115-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200030844D/alternatives.json"},"ai":{"faq":[{"question":"What are the key torque ratings for GBX1200030844D?","answer":"Continuous output torque is 115 N.m; maximum output torque is 184 N.m. The gearbox is rated for 30,000 hours service life at 100 rpm and 30 °C ambient when operated within the continuous torque envelope."},{"question":"What is the efficiency and noise level of GBX1200030844D?","answer":"Efficiency is 96% at rated load. Noise level is 65 dB at 1 meter, no-load, with straight-tooth gearing."},{"question":"What is the closest alternative to GBX1200030844D?","answer":"Schneider Electric does not list a direct pin-compatible or drop-in successor for this obsolete part. Any replacement requires reviewing the frame size, ratio, torque, and mounting dimensions against current GBX-series or other planetary gearbox offerings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200030844D","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/GBX1200030844D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}