{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1200040701F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1200040701F","canonicalUrl":"https://aoctrl.com/schneider/GBX1200040701F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1200040701F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1200040701F planetary gearbox, straight teeth, 120 mm diameter, 4:1 reduction ratio, 155 N.m continuous output torque, 94% efficiency, IP54 shaft output.","salesMarkdown":"## Torque and speed — 4:1 reduction, 155 N.m continuous The GBX1200040701F: This planetary gearbox delivers a 4:1 reduction ratio, stepping motor speed down and torque up by that factor. Continuous output torque is 155 N.m (1371.9 lbf.in) at 100 rpm and 86 °F (30 °C), with a maximum output torque of 248 N.m (2195.0 lbf.in) under the same conditions — the 60 % headroom above continuous covers acceleration peaks and short-duration overloads. The 94 % efficiency means 6 % of input power is lost as heat in the gear mesh and bearings — a figure that holds near the rated load and speed. At lower loads the percentage loss rises because the no-load friction and churning losses become a larger fraction of the total input. ## Backlash and rigidity — 8 arc.min maximum, 12 N.m/arcmin Maximum torsional backlash is 8 arc.min — the angular play between input and output when the direction reverses. For positioning axes this sets the repeatability floor; a 4:1 gearbox with 8 arc.min backlash translates to roughly 2 arc.min at the output shaft, which is standard for commercial planetary gearboxes without a preloaded or dual-pinion design. Torsional rigidity is 12 N.m/arcmin — the stiffness of the gear train under load. At the continuous torque of 155 N.m the wind-up is about 13 arc.min (155 ÷ 12), which adds to the backlash when the load reverses under torque. This matters for servo applications where the combined lost motion must stay within the axis tolerance budget. ## Bearing loads and service life — 30000 h at rated conditions Service life is 30000 hours at 100 rpm and 30 °C ambient — roughly 3.4 years of continuous operation. The gearbox is lubricated for life, so no maintenance interval for oil changes; the life limit is bearing and gear wear. Maximum axial force Fa is 2100 N at 100 rpm for the 30000-hour life, rising to 2800 N if the application accepts a 10000-hour life. Maximum radial force Fr (applied at mid-span of the output shaft) is 1500 N for 30000 hours, 2000 N for 10000 hours. These are the load limits the output bearings can sustain — exceeding them shortens life or causes premature failure. ## Sourcing — obsolete, quoted to order Schneider Electric lists the GBX1200040701F as obsolete. The gearbox is available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. For a replacement in an active design, a parametric search for a planetary gearbox with 120 mm diameter, 4:1 ratio, and 155 N.m continuous torque in the same mounting footprint is the starting point. The IP54 shaft output and straight-teeth geometry should be matched to avoid interface or noise issues.","metaTitle":"Schneider Electric GBX1200040701F planetary gearbox, 4:1","metaDescription":"Schneider Electric GBX1200040701F planetary gearbox, 4:1 reduction, 155 N.m continuous torque, 94% efficiency, 65 dB noise.","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":"4:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Compatibility code":"GBX","Torsional rigidity":"12 N.m/arcmin","Maximum output torque":"2195.0 lbf.in (248 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":"1371.9 lbf.in (155 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/4c2a13b5ad1844c42b31a9afe29b679b.pdf","sourceUrl":"https://www.se.com/ie/en/product/GBX1200040701F/gearbox-with-straight-teeth-gbx-ø-120-mm-reduction-41-8arcmin-155-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1200040701F/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1200040701F","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/GBX1200040701F 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}}