{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200400551F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200400551F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200400551F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200400551F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX series planetary gearbox, GBX1200400551F, 40:1 reduction, 230 N.m continuous torque, 12 arcmin backlash, 120 mm diameter, straight teeth.","salesMarkdown":"## 40:1 planetary reduction for servo and stepper applications The GBX1200400551F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, sized for a 120 mm output stage and a 40:1 reduction ratio. That ratio multiplies motor torque by 40 while dividing output speed by the same factor — a common match for indexing tables, conveyor drives, and positioning axes where the motor runs in its efficient speed range and the gearbox delivers the low-speed torque the load needs. Continuous output torque is rated 230 N.m at 100 rpm and 30 °C, with a maximum intermittent torque of 368 N.m under the same conditions. The 230 N.m continuous figure is the one to size against for duty cycles above 60 % — the 368 N.m peak covers acceleration and emergency stops within the 30,000-hour service life target. ## Backlash, stiffness, and load limits for precision axes Maximum torsional backlash is 12 arcmin, and torsional rigidity is 13 N.m/arcmin. For a positioning axis, 12 arcmin of lost motion at the output means the controller must account for that window in the reversal error compensation — acceptable for general indexing but not for zero-backlash cam-follower or HSC applications. Maximum radial force on the output shaft is 1500 N at 100 rpm for the 30,000-hour life target, rising to 2000 N for a 10,000-hour duty. Maximum axial force is 2100 N at 100 rpm for 30,000 hours, 2800 N for 10,000 hours. These limits apply with the radial force applied at mid-distance from the output shaft — overhung loads closer to the bearing face allow higher forces, but the datasheet values are the safe design-in numbers. ## Obsolete — sourcing through independent channels Schneider Electric has marked the GBX1200400551F as obsolete. No direct successor order code is listed on the manufacturer's lifecycle record. The part is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. The 94 % efficiency, IP54 shaft output protection, and lubricated-for-life design mean it still fits the original application if a unit can be sourced.","metaTitle":"Schneider Electric GBX1200400551F Planetary Gearbox, 40:1","metaDescription":"Schneider Electric GBX1200400551F planetary gearbox, 40:1 ratio, 230 N.m continuous torque, 94% efficiency. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"Efficiency":"94 %","Noise level":"65 dB 1 m, no-load","Gear box type":"Straight teeth","Housing Colour":"Black","Shaft material":"C 45","Reduction ratio":"40:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Compatibility code":"GBX","Torsional rigidity":"13 N.m/arcmin","Maximum output torque":"3257.07 lbf.in (368 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":"2100 N 100 rpm, during 30000 hour at 30°C 2800 N 100 rpm, during 10000 hour at 30°C","IP Degree of Protection":"Shaft output IP54","Maximum radial force Fr":"1500 N 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C 2000 N 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C","Continuous output torque":"2035.7 lbf.in (230 N.m) 100 rpm 86 °F (30 °C)","Gearbox external diameter":"4.7 in (120 mm)","Product or Component Type":"Planetary gearbox","Maximum torsional backlash":"12 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/f27436939a5fe89f02f444ceb60e6749.pdf","sourceUrl":"https://www.se.com/ie/en/product/GBX1200400551F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-401-12arcmin-230-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200400551F/alternatives.json"},"ai":{"faq":[{"question":"What is the continuous torque rating of the GBX1200400551F?","answer":"Continuous output torque is 230 N.m at 100 rpm and 30 °C ambient. Maximum intermittent torque is 368 N.m under the same conditions. The service life target at continuous rated load is 30,000 hours."},{"question":"What is the reduction ratio and backlash on this gearbox?","answer":"The reduction ratio is 40:1. Maximum torsional backlash is 12 arcmin. Torsional rigidity is 13 N.m/arcmin."},{"question":"What are the radial and axial load limits on the output shaft?","answer":"Maximum radial force is 1500 N at 100 rpm for 30,000-hour life, 2000 N for 10,000-hour life. Maximum axial force is 2100 N at 100 rpm for 30,000-hour life, 2800 N for 10,000-hour life. Radial force rating assumes force applied at mid-distance from the output shaft."},{"question":"Where can I buy the GBX1200400551F and check availability?","answer":"The GBX1200400551F is obsolete and sourced through independent distribution. Submit an RFQ for a lot-specific availability check."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200400551F","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/GBX1200400551F 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}}