{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200040844D","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200040844D","canonicalUrl":"https://aoctrl.com/schneider/GBX1200040844D","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200040844D","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200040844D planetary gearbox, straight teeth, 120 mm diameter, 4:1 reduction ratio, 155 N.m continuous output torque, 8 arcmin backlash.","salesMarkdown":"## Planetary gearbox, 120 mm, 4:1 — torque and stiffness numbers The GBX1200040844D is a straight-tooth planetary gearbox in the 120 mm diameter frame, delivering a 4:1 reduction ratio. Continuous output torque is 155 N.m, with a maximum intermittent rating of 248 N.m — the gap between those two numbers is the thermal limit under sustained load, not a mechanical ceiling. Torsional rigidity is 12 N.m/arcmin and the maximum backlash is 8 arcmin. For a positioning axis, that stiffness number tells you how much wind-up you get under load — at 155 N.m continuous you're looking at roughly 13 arcmin of twist across the gear train before the load moves. ## Efficiency, noise, and the load-life envelope Rated 96 % efficiency — that's the power loss through the gear train at rated torque and speed. The 65 dB noise level at 1 m, no-load is a bench figure; expect a few dB higher under load, but it's still in the quiet range for a planetary stage of this size. Service life is 30,000 hours at 100 rpm and 30 °C ambient. The maximum axial force on the output shaft is 2100 N at that duty point, and maximum radial force is 1500 N applied at mid-shaft. If you push the speed or temperature, those numbers derate — the 10,000-hour figures (2800 N axial, 2000 N radial) give you the short-term overload boundary. The shaft output carries IP54 protection, so it handles dust and splashing water but not washdown. ## Construction and sourcing Housing is black anodized aluminium; the output shaft is C45 steel. Mounting position is any orientation, which simplifies layout in a crowded panel or machine frame.","metaTitle":"Schneider Electric GBX1200040844D Planetary Gearbox, 4:1","metaDescription":"Schneider Electric GBX1200040844D planetary gearbox, 4:1 reduction, 155 N.m continuous torque, 96% efficiency, 65 dB noise level.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"title":"GBX1200040844D","Efficiency":"96 %","Noise level":"65 dB at 1 m, no-load","description":"gearbox with straight teeth GBX- Ø 120 mm- reduction 4:1- < 8arcmin- 155 N.m","Gear box type":"Straight teeth","Housing colour":"Black","Shaft material":"C 45","Reduction ratio":"4:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Moment Of Inertia":"1.79 g.cm²","Mounting position":"Any position","Compatibility code":"GBX","Torsional rigidity":"12 N.m/arcmin","Maximum output torque":"248 N.m","Service life in hours":"30000 h at 100 rpm at 30 °C","Additional information":"Lubricated for life","Maximum axial force Fa":"2100 N at 100 rpm, during 30000 hour at 30°C 2800 N at 100 rpm, during 10000 hour at 30°C","IP degree of protection":"Shaft output: IP54","Maximum radial force Fr":"1500 N at 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C 2000 N at 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C","Continuous output torque":"155 N.m","Gearbox external diameter":"120 mm","Product or component type":"Planetary gearbox","Maximum torsional backlash":"8 arc.min","Ambient Temperature For Operation":"-25...90 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e4d65ef3ffae6c838f671248126d3d96.pdf","sourceUrl":"https://www.se.com/nl/en/product/GBX1200040844D/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-41-8arcmin-155-n-m/"},"ai":{"faq":[{"question":"What is the continuous torque rating of GBX1200040844D?","answer":"Continuous output torque is 155 N.m. The maximum intermittent rating is 248 N.m — the thermal duty cycle governs the gap between the two figures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200040844D","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/GBX1200040844D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}