{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200121404F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200121404F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200121404F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200121404F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200121404F planetary gearbox, straight teeth, 120 mm diameter, reduction ratio 12:1, maximum torsional backlash 12 arc.min, continuous output torque 260 N.m, 94 % efficiency.","salesMarkdown":"## What the torque ratings mean for your drive train The GBX1200121404F is a planetary gearbox with a 12:1 reduction ratio — it multiplies motor torque by roughly twelve while cutting output speed by the same factor. The continuous output torque is 260 N.m at 100 rpm, and that's the number you size the rest of the driven load around. Maximum output torque hits 416 N.m, but that's the short-term peak before the gear teeth or bearings yield — not a steady-state operating point. The straight-tooth (spur) planetary design gives you 94 % efficiency, meaning about 6 % of the input power turns into heat inside the housing. For a 1 kW motor, that's 60 W of heat to manage — the black anodized aluminium housing sheds it by natural convection in most panel-mount or machine-frame installations. ## Lifecycle reality — this part is obsolete Schneider Electric lists the GBX1200121404F as obsolete. If you have this on a BOM for a machine that's already in service, your sourcing path is through independent distribution — surplus, new-old-stock, or broker channels. The gearbox is lubricated for life, so there's no oil-change interval to track. Service life is rated at 30000 hours at 100 rpm and 30 °C ambient — that's about 3.4 years of continuous operation. If your duty cycle is intermittent or the load is below the continuous torque rating, the service life extends beyond that figure. ## Mounting and load limits — what to check before you commit The gearbox external diameter is 120 mm, and the shaft output seal is rated IP54 — that keeps dust and splash out of the bearing cavity, but it's not submersible. If the gearbox sits in a washdown zone, you'll need a secondary cover over the output shaft. Maximum axial force on the output shaft is 2100 N for the full 30000-hour service life, or 2800 N if you accept a shorter 10000-hour life. Radial force limits are 1500 N and 2000 N respectively, with the force applied at mid-span of the output shaft. Exceed these and the bearing life drops fast — the numbers assume the load is centered, not cantilevered. Torsional rigidity is 13 N.m per arcmin — that tells you how much the gear train winds up under load. For a positioning system, 12 arcmin of backlash plus the wind-up under 260 N.m means the output shaft can lag the input by roughly 32 arcmin total. That's fine for conveyor indexing or rotary table positioning; it's not a servo-grade precision reducer. ## Acoustic and environmental envelope Noise level is 65 dB measured at 1 meter, no-load. That's roughly the sound of a quiet office — noticeable but not ear-protection territory. Under load the noise rises a few dB as the gear teeth carry torque, but the straight-tooth geometry is inherently noisier than helical; if your application is in a sound-sensitive area, budget for an acoustic enclosure. The 90 °C ceiling is the internal grease limit — the housing can get hot from reflected motor heat or nearby equipment, so leave a 15-20 °C margin below that for reliability.","metaTitle":"Schneider Electric GBX1200121404F planetary gearbox, 12:1","metaDescription":"Schneider Electric GBX1200121404F planetary gearbox, 12:1 ratio, 260 N.m continuous torque, 94% efficiency, IP54.","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/a7820b9a2e060a4f8513cabdad4fce63.pdf","sourceUrl":"https://www.se.com/ca/en/product/GBX1200121404F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-121-12arcmin-260-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200121404F/alternatives.json"},"ai":{"faq":[{"question":"How do I order the GBX1200121404F and get a quote?","answer":"No stock-holding claim is made; each order is verified against actual channel inventory."},{"question":"What is the continuous torque rating of the GBX1200121404F?","answer":"The continuous output torque is 260 N.m at 100 rpm and 30 °C ambient. That's the steady-state load the gearbox can carry for its rated 30000-hour service life. The maximum torque is 416 N.m for short-duration peaks only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200121404F","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/GBX1200121404F 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}}