{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GBX1600251385D","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GBX1600251385D","canonicalUrl":"https://aoctrl.com/schneider/GBX1600251385D","factsUrl":"https://aoctrl.com/api/mcp/products/GBX1600251385D","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric GBX1600251385D planetary gearbox, straight teeth, 160 mm diameter, 25:1 reduction, 700 N.m continuous torque, 94% efficiency, IP54 shaft output.","salesMarkdown":"## Planetary gearbox for servo-driven positioning axes The GBX1600251385D is a straight-tooth planetary gearbox in the 160 mm frame size, delivering a 25:1 reduction ratio. It's built for the output side of a servo motor on a positioning axis — pick-and-place, rotary index tables, or feed-to-length on a cut-to-length line. Continuous output torque is 700 N.m, with a peak rating of 1120 N.m for acceleration transients. The 10 arc-min maximum torsional backlash means it holds position repeatability within a few thousandths of a degree at the output — acceptable for most servo-driven indexing, not for zero-backlash cam-follower applications. ## Load capacity and service life at rated speed Rated service life is 30,000 hours at 100 rpm output speed and 30 °C ambient. At that same speed, the maximum axial force on the output shaft is 6000 N, and the maximum radial force (applied at mid-shaft) is 4200 N — both for the full 30,000-hour life. If you need higher loads, the gearbox can handle 8000 N axial and 6000 N radial for a reduced 10,000-hour life. The torsional rigidity of 41 N.m/arcmin tells you how much wind-up you get under load — at 700 N.m continuous torque, expect about 17 arc-min of elastic twist. That's a known quantity for the servo tuning loop to compensate. ## Sourcing reality — obsolete, sourced through surplus channels Schneider Electric lists this gearbox as obsolete. The GBX series is a closed chapter — no direct drop-in replacement from Schneider. Available through independent surplus and broker channels. Quantities are lot-specific — confirmed at RFQ. No pin-compatible alternative exists within the same family; a functional replacement would require checking the mounting flange, shaft diameter, and keyway dimensions against a current-series planetary gearbox from a different manufacturer. ## Integration and environmental fit The housing is black anodized aluminium, shaft is C45 steel. IP54 at the shaft output — protected against dust ingress and splashing water, but not submersion or washdown. Mountable in any position — vertical, horizontal, or inverted — which simplifies integration into tight machine frames. The 5.81 g.cm² moment of inertia is low enough that a servo drive's inertia-matching calculation won't be dominated by the gearbox alone.","metaTitle":"Schneider Electric GBX1600251385D planetary gearbox, 25:1","metaDescription":"Schneider Electric GBX1600251385D planetary gearbox, 25:1 ratio, 700 N.m continuous torque, 94% efficiency.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Gear Reducers & Gearboxes"],"specifications":{"Efficiency":"94 %","Noise level":"70 dB at 1 m, no-load","Gear box type":"Straight teeth","Housing colour":"Black","Shaft material":"C 45","Reduction ratio":"25:1","lifecycle_stage":"current","Housing material":"Black anodized aluminium","Device short name":"GBX","Moment Of Inertia":"5.81 g.cm²","Mounting position":"Any position","Compatibility code":"GBX","Torsional rigidity":"41 N.m/arcmin","Maximum output torque":"1120 N.m","Service life in hours":"30000 h at 100 rpm at 30 °C","Additional information":"Lubricated for life","Maximum axial force Fa":"6000 N at 100 rpm, during 30000 hour at 30°C 8000 N at 100 rpm, during 10000 hour at 30°C","IP degree of protection":"Shaft output: IP54","Maximum radial force Fr":"4200 N at 100 rpm, force applied at mid-distance from output shaft during 30000 hour at 30 °C 6000 N at 100 rpm, force applied at mid-distance from output shaft during 10000 hour at 30 °C","Continuous output torque":"700 N.m","Gearbox external diameter":"160 mm","Product or component type":"Planetary gearbox","Maximum torsional backlash":"10 arc.min","Ambient Temperature For Operation":"-25...90 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2b47cc62b45f4b730ddf2a26d461cff9.pdf","sourceUrl":"https://www.se.com/nl/en/product/GBX1600251385D/gearbox-with-straight-teeth-gbx-ø-160-mm-reduction-251-10arcmin-700-n-m/","alternativesUrl":"https://aoctrl.com/api/mcp/products/GBX1600251385D/alternatives.json"},"ai":{"faq":[{"question":"What is the noise level of GBX1600251385D?","answer":"The gearbox is rated at 70 dB at 1 m under no-load conditions. That's typical for a straight-tooth planetary — the noise comes from the gear mesh, not the bearings. In a servo axis running at moderate speed, it's audible but not objectionable in a production environment."},{"question":"What is the efficiency of GBX1600251385D?","answer":"Listed at 94 %. For a single-stage 25:1 planetary, that's in the expected range — most of the loss is gear mesh friction, not bearing drag. The efficiency stays fairly flat across the torque band because the straight teeth have consistent sliding contact."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GBX1600251385D","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/GBX1600251385D 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}}