{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX0400120703F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX0400120703F","canonicalUrl":"https://aoctrl.com/schneider/GBX0400120703F","factsUrl":"https://aoctrl.com/api/mcp/products/GBX0400120703F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX0400120703F planetary gearbox, straight teeth, 40 mm diameter, 12:1 reduction, 28 arcmin backlash, 20 N.m continuous torque.","salesMarkdown":"## 12:1 planetary reduction for servo or stepper output The GBX0400120703F is a 40 mm-diameter planetary gearbox with a 12:1 reduction ratio — sized for the output shaft of a servo or stepper motor where you need to multiply torque and drop speed into the usable band for a linear actuator, conveyor roll, or indexing table. Continuous output torque is 20 N.m at 100 rpm, with a maximum peak of 32 N.m at the same speed — the 12:1 ratio means the input motor sees about one-twelfth the output torque reflected back, so a 2–3 N.m motor covers the continuous case. Straight-tooth spur gearing keeps the cost and backlash predictable — 28 arcmin maximum torsional backlash is typical for this class, adequate for positioning tasks that don't need zero-reversal precision. ## Torque, life, and force limits at 100 rpm All the load ratings — continuous torque, maximum torque, axial force, radial force, and service life — are specified at 100 rpm and 30 °C. At 20 N.m continuous the gearbox is rated for 30,000 hours; push it to 32 N.m peak and the life drops to the same 30,000-hour figure at the lower duty cycle implied by a peak rating. Axial force limit is 200 N for a 10,000-hour life, 160 N for 30,000 hours. Radial force applied at mid-shaft follows the same derating: 200 N for 10k hours, 160 N for 30k. These numbers govern bearing selection on the driven shaft — an overhung load from a belt or chain needs to stay under the radial limit or the gearbox life shortens. Efficiency is 94 % — the 6 % loss is mostly gear mesh friction and bearing drag. At 20 N.m and 100 rpm the input power is about 210 W; the 13 W loss heats the housing, which is black anodized aluminium for radiative cooling. Noise level is 55 dB at 1 m, no-load — this is the gear mesh whine without load-induced deflection. Under load the noise rises a few dB as the teeth deflect, but 55 dB is quiet enough for lab or light industrial environments. ## Obsolete — sourcing through independent channels Available through independent surplus and broker channels. Quantities are lot-specific and confirmed at RFQ. The gearbox is lubricated for life — no maintenance schedule, which simplifies storage and re-commissioning from surplus stock. Shaft output seal is IP54 — protects against dust ingress and splashing water, but not submersion. The housing is black anodized aluminium with a C 45 steel shaft. Operating ambient is -25 to 90 °C.","metaTitle":"Schneider Electric GBX0400120703F Planetary Gearbox, 12:1","metaDescription":"Schneider Electric GBX0400120703F planetary gearbox, 12:1 reduction, 20 N.m continuous torque, 94% efficiency. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"Efficiency":"94 %","Noise level":"55 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":"1.1 N.m/arcmin","Maximum output torque":"283.2 lbf.in (32 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":"200 N 100 rpm, during 10000 hour at 30°C 160 N 100 rpm, during 30000 hour at 30°C","IP Degree of Protection":"Shaft output IP54","Maximum radial force Fr":"200 N 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C 160 N 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C","Continuous output torque":"177.01 lbf.in (20 N.m) 100 rpm 86 °F (30 °C)","Gearbox external diameter":"1.6 in (40 mm)","Product or Component Type":"Planetary gearbox","Maximum torsional backlash":"28 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/11ca1708f936dd52e88781bcab8780d6.pdf","sourceUrl":"https://www.se.com/nz/en/product/GBX0400120703F/gearbox-with-straight-teeth-gbx-ø-40-mm-reduction-121-28arcmin-20-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX0400120703F/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX0400120703F","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/GBX0400120703F 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}}