{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"R88M-1M11K015C-BS2","brand":"Omron","brandSlug":"omron","productSlug":"R88M-1M11K015C-BS2","canonicalUrl":"https://aoctrl.com/omron/R88M-1M11K015C-BS2","factsUrl":"https://aoctrl.com/api/mcp/products/R88M-1M11K015C-BS2","rawCanonicalId":null},"summary":{"shortDescription":"Omron 1S Servo System, cylindrical motor R88M-1M11K015C-BS2, 11 kW, 1500 rpm, 480 VAC 3-phase, with brake, absolute encoder, key and tap.","salesMarkdown":"## Motor selection memo The R88M-1M11K015C-BS2 is an 11 kW cylindrical servo motor from Omron's 1S series, rated for 1500 rpm base speed on a 480 VAC three-phase supply. The built-in holding brake and absolute encoder make it a fit for vertical-axis or high-hold applications where power-off position retention is required. Key and tap on the shaft ensure positive coupling to the load without slipping under torque. The brake is a spring-set, power-off engaged type — it engages when drive power is removed or the enable signal drops, holding the load in position. For a 11 kW motor on a vertical axis, that brake is sized to hold the full rated torque at standstill; no external mechanical brake is needed. The absolute encoder eliminates the need for a home-search routine on power-up — the position is known immediately, which matters on multi-axis gantries or tool changers where a reference move would waste cycle time. ## Panel fit — the brake vs. non-brake sibling The closest peer is the R88M-1M11K015C-S2 — identical frame, same 11 kW / 1500 rpm / 480 VAC / absolute encoder spec, but without the brake. The -BS2 adds roughly 40 mm to the overall length and requires a brake power connection from the drive (Omron 1S drives have a dedicated brake output). If the original panel was wired for the -S2, dropping in the -BS2 means adding a brake cable and verifying the drive's brake transistor is enabled. Mechanically, the mounting flange and shaft dimensions are identical, so no re-machining is needed.","metaTitle":"Omron R88M-1M11K015C-BS2 Servo Motor, 11 kW, 1500 rpm, Brake","metaDescription":"Omron R88M-1M11K015C-BS2 1S servo motor, 11 kW, 1500 rpm, 480 VAC 3-phase, with brake and absolute encoder. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors"],"specifications":{"Brake":"Yes","Shape":"Cylindrical","Speed":"1500 rpm","Voltage":"480 VAC","Capacity":"11 kW","Key and tap":"Yes","Encoder type":"Absolute","Oil-tight seal":"No","lifecycle_stage":"current","Supply voltage and phase":"3 Phase 480 VAC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bbf4723aa1eb5bf9269d190c5eae9621.pdf","sourceUrl":"https://automation.omron.com/en/us/products/family/1S-Motors","alternativesUrl":"https://aoctrl.com/api/mcp/products/R88M-1M11K015C-BS2/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between the R88M-1M11K015C-BS2 and the R88M-1M11K015C-S2?","answer":"The -BS2 includes a holding brake; the -S2 does not. All other ratings — 11 kW, 1500 rpm, 480 VAC, absolute encoder, cylindrical shape, key and tap — are identical. The -BS2 is longer and requires a brake power connection from the drive."},{"question":"Does this motor have a brake?","answer":"Yes, the R88M-1M11K015C-BS2 is listed with a brake. It is a spring-set, power-off engaged holding brake."},{"question":"What is the shaft shape and encoder type?","answer":"The motor has a cylindrical shape, an absolute encoder, and a key and tap on the shaft for positive torque transmission."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/R88M-1M11K015C-BS2","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/R88M-1M11K015C-BS2 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}}