{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200400704F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200400704F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200400704F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200400704F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200400704F planetary gearbox, straight teeth, 40:1 reduction ratio, 120 mm external diameter, 230 N.m continuous output torque, 368 N.m maximum, 94 % efficiency.","salesMarkdown":"## 40:1 reduction, 230 N.m continuous — the ratings that decide the fit The GBX1200400704F: This is a Schneider Electric GBX-series planetary gearbox with a 40:1 reduction ratio and a 120 mm external diameter. The continuous output torque is 230 N.m at 100 rpm and 30 °C — that is the sustained load it can carry hour after hour without overheating the lubricant. The maximum output torque peaks at 368 N.m under the same conditions, which covers startup peaks and short overloads but not continuous running. Straight-cut teeth mean higher efficiency than helical — 94 % — but more audible whine at speed. The 65 dB noise level at 1 m is the no-load figure; under load it will be louder, so budget for acoustic enclosures in noise-sensitive areas. The 30000-hour service life at 100 rpm and 30 °C is the design life at rated torque — run it harder and the life shortens. The gearbox is lubricated for life, so no oil-change intervals to schedule, but the sealed-for-life design means a failed seal or bearing is an end-of-life event, not a service item. ## Torque, backlash, and the loads that limit the application Maximum torsional backlash is 12 arc.min — that is the angular play between input and output when the direction reverses. For positioning axes that need less than 0.2° repeatability, this gearbox needs a preloaded or dual-drive arrangement. Torsional rigidity is 13 N.m/arcmin, meaning each 13 N.m of applied torque twists the output shaft by one arc-minute; at 230 N.m continuous that is about 17.7 arcmin of windup under load. Maximum radial force on the output shaft is 1500 N at 100 rpm for the 30000-hour life, or 2000 N if you accept a 10000-hour life. Axial force limits are 2100 N for the long life and 2800 N for the shorter one. Both assume the force is applied at mid-distance from the output shaft — overhung loads reduce these numbers. The shaft is C45 steel, standard medium-carbon grade, adequate for these load levels without case hardening. Shaft output sealing is IP54, which keeps dust and splashing water out of the bearing cavity but does not survive hose-down or submersion. ## Obsolete — what that means for sourcing Schneider Electric lists the GBX1200400704F as obsolete. No stock-holding claim is made here; quantities are lot-specific and quoted per BOM line. For a replacement, the closest functional match would be another GBX-series gearbox with the same 120 mm diameter, 40:1 ratio, and 230 N.m continuous torque rating, but the mounting flange dimensions and shaft keyway must be verified against the existing installation. No direct pin-compatible cross-reference is published by Schneider.","metaTitle":"Schneider Electric GBX1200400704F planetary gearbox","metaDescription":"Schneider Electric GBX1200400704F planetary gearbox, 40:1 reduction, 230 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":"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/bd5aacd5bff30eb347b3ae9f59f0390e.pdf","sourceUrl":"https://www.se.com/uk/en/product/GBX1200400704F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-401-12arcmin-230-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200400704F/alternatives.json"},"ai":{"faq":[{"question":"What is the continuous torque rating of the GBX1200400704F?","answer":"The continuous output torque is 230 N.m at 100 rpm and 30 °C. The maximum output torque, for short-duration peaks, is 368 N.m under the same conditions. The 230 N.m figure is the one to size the application against for sustained duty."},{"question":"What does the 12 arcmin backlash mean for positioning accuracy?","answer":"12 arc.min of maximum torsional backlash means the output shaft can rotate up to 0.2° before the input engages when reversing direction. For indexing or positioning axes requiring better than 0.2° repeatability, this gearbox needs a preload or a dual-motor anti-backlash arrangement. The torsional rigidity of 13 N.m/arcmin adds additional windup under load — about 17.7 arcmin at the 230 N.m continuous torque."},{"question":"What is the noise level of the GBX1200400704F?","answer":"The listed noise level is 65 dB at 1 m, no-load. This is the acoustic output when the gearbox is running unloaded. Under load, straight-cut teeth generate more gear whine; the actual noise will be higher. Plan for acoustic enclosures if the application is in a noise-sensitive area."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200400704F","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/GBX1200400704F 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}}