{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200120551F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200120551F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200120551F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200120551F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200120551F planetary gearbox, straight teeth, 120 mm diameter, 12:1 reduction ratio, 260 N.m continuous output torque, 94 % efficiency, IP54 shaft output.","salesMarkdown":"## 12:1 planetary reduction — torque and service life anchors The GBX1200120551F is a straight-tooth planetary gearbox with a 12:1 reduction ratio, delivering a maximum output torque of 416 N.m (3681.9 lbf.in) and a continuous output torque of 260 N.m (2301.2 lbf.in), both rated at 100 rpm and 86 °F (30 °C). Service life is specified at 30000 hours at the rated 100 rpm and 30 °C — this sets the maintenance interval for the lubricated-for-life sealed unit. The 94 % efficiency figure defines the mechanical loss floor for the drivetrain thermal budget; at 260 N.m output, roughly 16.6 N.m of input torque is lost as heat within the gearbox. ## Shaft loading limits and environmental sealing Maximum axial force Fa is 2100 N at 100 rpm for the 30000-hour service life, or 2800 N for a 10000-hour duty cycle — both at 30 °C. Maximum radial force Fr is 1500 N (30000 h) or 2000 N (10000 h), with force applied at mid-distance from the output shaft. The shaft output carries an IP54 degree of protection, meaning the gearbox resists dust ingress and splashing water at the output seal — suitable for washdown environments but not immersion. Housing is black anodized aluminium with a C 45 steel shaft, giving corrosion resistance in the housing while maintaining shaft hardness for coupling fit. ## Lifecycle status — obsolete, no direct successor Per the manufacturer's lifecycle record, the GBX1200120551F is classified as Obsolete. The gearbox is available through independent distribution channels; quantities are confirmed at RFQ. For audit and tender purposes, the datasheet specifies a torsional backlash of 12 arc.min maximum and a torsional rigidity of 13 N.m/arcmin. No pin-compatible or parametric replacement is documented in the GBX family — a functional replacement would require verifying the mounting interface, shaft diameter, and reduction ratio against the application's BOM.","metaTitle":"Schneider Electric GBX1200120551F Planetary Gearbox, 12:1","metaDescription":"Schneider Electric GBX1200120551F planetary gearbox, 12:1 reduction, 260 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":"12:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Compatibility code":"GBX","Torsional rigidity":"13 N.m/arcmin","Maximum output torque":"3681.9 lbf.in (416 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":"2301.2 lbf.in (260 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/77fe528849f5aacf49e200cc86959b66.pdf","sourceUrl":"https://www.se.com/uk/en/product/GBX1200120551F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-121-12arcmin-260-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200120551F/alternatives.json"},"ai":{"faq":[{"question":"What is the noise level of the GBX1200120551F?","answer":"The gearbox is rated at 65 dB at 1 m, no-load. This is the acoustic emission under unloaded operation; loaded noise will be higher depending on the driven load and mounting stiffness."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200120551F","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/GBX1200120551F 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}}