{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX0400120402D","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX0400120402D","canonicalUrl":"https://aoctrl.com/schneider/GBX0400120402D","factsUrl":"https://aoctrl.com/api/mcp/products/GBX0400120402D","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX series planetary gearbox, straight teeth, 40 mm diameter, 12:1 reduction ratio, 32 N.m max output torque, 35 arc.min backlash, IP54 shaft output.","salesMarkdown":"## Lifecycle reality — obsolete, sourced through surplus The GBX0400120402D: For a line-down situation or BOM freeze, this unit is available through independent surplus and broker channels. ## 12:1 planetary reduction — torque and stiffness Planetary gearbox with straight teeth, 40 mm outer diameter, delivering a 12:1 reduction ratio. Maximum output torque is 32 N.m — that is the continuous load ceiling; sizing the driven load below this number keeps the gearset within its rated service life. Torsional rigidity is 1.1 N.m/arcmin, and maximum torsional backlash is 35 arc.min. For positioning applications where lost motion on reversal matters, that backlash figure tells you the angular play at the output shaft under no load — budget it into the system accuracy. ## Rated life and operating envelope Service life is 30000 hours at 100 rpm at 30 °C ambient — this is the design anchor for the gearset and lubrication. The gearbox is lubricated for life, so no field maintenance on the oil; the operating ambient range is -25 to 90 °C. Maximum radial force on the output shaft is 200 N at 100 rpm (mid-shaft, 10000 h life) and 160 N at 100 rpm for the full 30000 h life. Maximum axial force is 160 N at 100 rpm over 30000 h. These force limits govern the overhung load from a belt, chain, or gear — stay under them to hit the rated life. ## Efficiency and noise Rated 94 % efficiency — about 6 % of input power is lost as heat in the gear mesh and bearings. Noise level is 55 dB at 1 m, no-load, which is quiet enough for most machine-side environments without additional acoustic enclosures. ## Mounting and ingress protection Mountable in any position — the lubrication system is sealed and position-independent. Shaft output is rated IP54, meaning the output seal is protected against dust ingress and splashing water; the housing is black anodized aluminium, shaft material is C 45 steel.","metaTitle":"Schneider Electric GBX0400120402D planetary gearbox, 12:1","metaDescription":"Schneider Electric GBX0400120402D planetary gearbox, 12:1 reduction, 32 N.m max torque, 94% efficiency, 55 dB noise.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"Efficiency":"94 %","Noise level":"55 dB at 1 m, no-load","Gear box type":"Straight teeth","Housing colour":"Black","Shaft material":"C 45","Reduction ratio":"12:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Moment Of Inertia":"0.029 g.cm²","Mounting position":"Any position","Compatibility code":"GBX","Torsional rigidity":"1.1 N.m/arcmin","Maximum output torque":"32 N.m","Service life in hours":"30000 h at 100 rpm at 30 °C","Additional information":"Lubricated for life","Maximum axial force Fa":"160 N at 100 rpm, during 30000 hour at 30°C","IP degree of protection":"Shaft output: IP54","Maximum radial force Fr":"200 N at 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C 160 N at 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C","Gearbox external diameter":"40 mm","Product or component type":"Planetary gearbox","Maximum torsional backlash":"35 arc.min","Ambient Temperature For Operation":"-25...90 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/13483fca159030738b865e9789894987.pdf","sourceUrl":"https://www.se.com/ie/en/product/GBX0400120402D/gearbox-with-straight-teeth-gbx-ø-40-mm-reduction-121-35arcmin-20-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX0400120402D/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output torque of the GBX0400120402D?","answer":"Maximum output torque is 32 N.m. This is the continuous torque rating — the driven load should be sized below this value to stay within the 30000-hour service life at 100 rpm and 30 °C ambient."},{"question":"What is the torsional backlash of this gearbox?","answer":"Maximum torsional backlash is 35 arc.min. This is the angular play at the output shaft under no load — relevant for positioning accuracy in reversing applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX0400120402D","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/GBX0400120402D 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}}