{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200050551F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200050551F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200050551F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200050551F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200050551F planetary gearbox, straight teeth, 120 mm diameter, 5:1 reduction ratio, 195 N.m continuous output torque, 94% efficiency, IP54 shaft output.","salesMarkdown":"## Obsolete — sourcing through independent channels The GBX1200050551F: Available through independent surplus and broker channels. ## Torque and duty ratings that govern the fit Continuous output torque is 195 N.m at 100 rpm and 30 °C ambient — this is the sustained load the gearbox can carry across its 30,000-hour service life without exceeding thermal limits. Maximum output torque reaches 312 N.m under the same conditions, but this is a peak rating for intermittent overloads, not continuous duty. Torsional rigidity is 12 N.m/arcmin, meaning the gearbox resists wind-up under load — relevant for positioning accuracy in indexing or servo-feed applications. Maximum torsional backlash is 8 arc.min, which defines the lost motion at the output shaft when reversing direction. For precision positioning, this figure must be within the system's allowable error budget. ## Mechanical interface and environmental limits Gearbox external diameter is 120 mm — this sets the mounting envelope and the clearance needed in the machine frame or bracket. Shaft output is rated IP54, meaning the output seal resists dust ingress and splashing water but is not submersible. The housing itself is black anodized aluminium. Maximum axial force Fa is 2100 N at 100 rpm for the full 30,000-hour life, or 2800 N if the life target is reduced to 10,000 hours. Radial force Fr is 1500 N at mid-span for 30,000 hours, or 2000 N for 10,000 hours. These force limits govern the overhung load the output shaft can support from a belt, chain, or direct-coupled load. Ambient temperature range for operation is -25 °C to 90 °C. The gearbox is lubricated for life — no field re-greasing interval. ## Efficiency and noise — what the numbers mean Efficiency is listed at 94 %. This is the ratio of output mechanical power to input mechanical power at rated load and speed. The 6 % loss is dissipated as heat within the gearbox housing and must be considered in the thermal design of the driven system. Noise level is 65 dB at 1 m, no-load. This is a free-field measurement — in a machine enclosure or panel, the perceived noise may be lower due to absorption or higher due to structure-borne resonance. Straight-cut teeth (as opposed to helical) typically produce more gear whine at higher speeds.","metaTitle":"Schneider Electric GBX1200050551F Planetary Gearbox, 5:1","metaDescription":"Schneider Electric GBX1200050551F planetary gearbox, 120 mm diameter, 5:1 reduction, 195 N.m continuous torque, 94% efficiency.","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":"5:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Compatibility code":"GBX","Torsional rigidity":"12 N.m/arcmin","Maximum output torque":"2761.4 lbf.in (312 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":"1725.9 lbf.in (195 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":"8 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/9a3e84ac99f01ff9c607d6cc80f4706f.pdf","sourceUrl":"https://www.se.com/ie/en/product/GBX1200050551F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-51-8arcmin-195-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200050551F/alternatives.json"},"ai":{"faq":[{"question":"What is the continuous torque rating of the GBX1200050551F?","answer":"The continuous output torque is 195 N.m at 100 rpm and 30 °C ambient, with a 30,000-hour service life. The maximum intermittent torque is 312 N.m under the same conditions."},{"question":"What is the reduction ratio and backlash of this gearbox?","answer":"The reduction ratio is 5:1. Maximum torsional backlash is 8 arc.min, and torsional rigidity is 12 N.m/arcmin."},{"question":"What are the axial and radial force limits on the output shaft?","answer":"Maximum axial force Fa is 2100 N at 100 rpm for 30,000-hour life, or 2800 N for 10,000-hour life. Maximum radial force Fr is 1500 N at mid-span for 30,000-hour life, or 2000 N for 10,000-hour life."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200050551F","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/GBX1200050551F 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}}