{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200031003F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200031003F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200031003F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200031003F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200031003F planetary gearbox, straight teeth, 120 mm diameter, reduction ratio 3:1, continuous output torque 115 N.m, 94 % efficiency, IP54 shaft output.","salesMarkdown":"## Obsolete — what that means for your BOM line Schneider Electric lists the GBX1200031003F as obsolete. This part is sourced through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. Availability and current pricing are verified at quote time, not assumed from a shelf count. ## Torque and ratio — the fit decision The continuous output torque is 115 N.m (1017.8 lbf.in) at 100 rpm and 30 °C. That is the number to match against your driven load's steady-state demand — not the maximum peak of 184 N.m, which is a short-duration overload ceiling. Reduction ratio is 3:1. This is a single-stage planetary — the input speed is three times the output speed. Straight teeth means no helical axial thrust on the bearings, but expect slightly higher noise than a helical equivalent at the same ratio. Torsional backlash is 8 arc.min maximum. For positioning applications that need better than 0.13° repeatability at the output, this gearbox will introduce that much lost motion per reversal — factor it into your accuracy budget. ## Shaft loads and service life Maximum radial force Fr is 1500 N at 100 rpm, applied at mid-distance from the output shaft, for a 30000-hour life at 30 °C. Push that to 2000 N and the bearing life drops to 10000 hours at the same temperature and speed. Maximum axial force Fa is 2100 N at 100 rpm for 30000 hours at 30 °C, or 2800 N for a 10000-hour life. These are the overhung load limits — a belt drive or sprocket on the output shaft must stay within these radial and axial envelopes to hit the rated service life. Service life is 30000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life — no oil changes, but the grease fill is sealed at the factory, so the life rating is baked in at assembly. ## Efficiency, noise, and environment Efficiency is 94 %. For a 115 N.m output at 100 rpm (roughly 1.2 kW mechanical), the heat loss is about 77 W — that stays inside the black anodized aluminium housing, so the ambient temperature around the gearbox must stay within -25 to 90 °C to avoid overheating the lubricant. Noise level is 65 dB at 1 m, no-load. Straight-tooth planetary gears are inherently noisier than helical — 65 dB is conversational level, but under load the noise will rise. The IP54 rating on the shaft output means the output seal resists dust and splashing water, but the gearbox body itself is not sealed — mount it where washdown is not directed at the housing joint.","metaTitle":"Schneider Electric GBX1200031003F Planetary Gearbox, 3:1","metaDescription":"Schneider Electric GBX1200031003F planetary gearbox, 3:1 ratio, 115 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":"3:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Compatibility code":"GBX","Torsional rigidity":"12 N.m/arcmin","Maximum output torque":"1628.5 lbf.in (184 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":"1017.8 lbf.in (115 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/e34b21926d783218fe6c3db5d63220e4.pdf","sourceUrl":"https://www.se.com/us/en/product/GBX1200031003F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-31-8arcmin-115-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200031003F/alternatives.json"},"ai":{"faq":[{"question":"What is the continuous output torque of the GBX1200031003F?","answer":"115 N.m (1017.8 lbf.in) at 100 rpm and 30 °C. This is the steady-state rating — the maximum output torque is 184 N.m for short-duration peaks."},{"question":"What radial and axial loads can the GBX1200031003F output shaft handle?","answer":"Maximum radial force Fr is 1500 N at 100 rpm for 30000-hour life at 30 °C. Maximum axial force Fa is 2100 N at the same conditions. Higher loads reduce bearing life to 10000 hours."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200031003F","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/GBX1200031003F 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}}