{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX0400121004F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX0400121004F","canonicalUrl":"https://aoctrl.com/schneider/GBX0400121004F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX0400121004F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX0400121004F planetary gearbox, straight teeth, 40 mm diameter, 12:1 reduction ratio, 20 N.m continuous output torque, 94% efficiency, 55 dB noise level.","salesMarkdown":"## 12:1 planetary gearbox — 20 N.m continuous, 32 N.m peak The GBX0400121004F is a 40 mm diameter planetary gearbox from Schneider Electric's GBX series, with straight-cut teeth and a 12:1 reduction ratio. It delivers 20 N.m continuous output torque at 100 rpm, with a maximum peak of 32 N.m at the same speed — enough margin for short overloads during acceleration or shock loads. ## Torque, backlash, and service life at 100 rpm Rated for 30,000 hours service life at 100 rpm and 30 °C ambient, the gearbox is lubricated for life — no oil changes, no breather vent to maintain. Torsional backlash is 28 arc.min maximum, which matters for positioning accuracy in indexing or start-stop applications; if your motion profile requires tighter repeatability, this figure sets the floor. Maximum radial force at mid-shaft is 160 N for the full 30,000-hour life, or 200 N if you accept a 10,000-hour service interval. Axial force limits follow the same derating curve: 160 N for 30,000 hours, 200 N for 10,000 hours. Overhang loads from pulleys or pinions must stay within these bounds to avoid bearing wear that shortens life below the rating. ## Efficiency, noise, and environmental sealing At 94 % efficiency, the gearbox loses about 6 % of input power as heat — roughly 1.3 W at the continuous torque rating, which the anodised aluminium housing dissipates without a fan. Noise measures 55 dB at 1 m, no-load, which is quiet enough for lab or office-adjacent equipment without an acoustic enclosure. Shaft output sealing is IP54, meaning dust-protected and splash-resistant at the output shaft — suitable for dry indoor environments but not washdown. The housing is black anodised aluminium, shaft is C45 carbon steel. Ambient operating range is -25 to 90 °C, covering most industrial enclosures and outdoor cabinets in temperate climates. ## Obsolete — sourcing through independent channels Schneider Electric lists the GBX0400121004F as obsolete. No official successor or cross-reference is published. Quantities are confirmed at RFQ; no minimum order is assumed.","metaTitle":"Schneider Electric GBX0400121004F Planetary Gearbox, 12:1","metaDescription":"Schneider Electric GBX0400121004F planetary gearbox, 12:1 reduction, 20 N.m continuous torque, 94% efficiency, 55 dB noise.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"Efficiency":"94 %","Noise level":"55 dB 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","Compatibility code":"GBX","Torsional rigidity":"1.1 N.m/arcmin","Maximum output torque":"283.2 lbf.in (32 N.m) 100 rpm 86 °F (30 °C)","Nbr. of units in pkg.":"1","Service life in hours":"30000 h 100 rpm 86 °F (30 °C)","Additional information":"Lubricated for life","Maximum axial force Fa":"200 N 100 rpm, during 10000 hour at 30°C 160 N 100 rpm, during 30000 hour at 30°C","IP Degree of Protection":"Shaft output IP54","Maximum radial force Fr":"200 N 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C 160 N 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C","Continuous output torque":"177.01 lbf.in (20 N.m) 100 rpm 86 °F (30 °C)","Gearbox external diameter":"1.6 in (40 mm)","Product or Component Type":"Planetary gearbox","Maximum torsional backlash":"28 arc.min","Ambient Temperature For Operation":"-13...194 °F (-25...90 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c00b1fb9ab549c6e561aa737bb50edfb.pdf","sourceUrl":"https://www.se.com/uk/en/product/GBX0400121004F/gearbox-with-straight-teeth-gbx-ø-40-mm-reduction-121-28arcmin-20-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX0400121004F/alternatives.json"},"ai":{"faq":[{"question":"What is the continuous torque rating of GBX0400121004F?","answer":"20 N.m (177 lbf.in) at 100 rpm and 30 °C ambient. Peak torque is 32 N.m (283 lbf.in) under the same conditions. Both figures assume the gearbox is mounted with adequate heat sinking through the 40 mm housing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX0400121004F","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/GBX0400121004F 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}}