{"rewrite":{"id":"r_4d1faebd6e4fa8b48231c63f","clusterId":"c_aceb8c93164620d91b3cd53c","slug":"isc-and-sorohamu-develop-world-s-smallest-bearing-spinning-top-big-wing-pico","model":"deepseek-v4-flash","headline":"ISC and Sorohamu Develop World's Smallest Bearing Spinning Top Big Wing pico","summary":"ISC and Sorohamu have developed the Big Wing pico, a 35 mm diameter spinning top that they call the world's smallest bearing-equipped top. It will be sold early at the Spin Gear booth at TOKYO TOY SHOW 2026, running August 27 to 30 at Tokyo Big Sight, with general release on September 1. Two models launch: a bimetal and a monometal.","whyItMatters":"The release follows the 2025 SG Kendama pico, making the bearing-equipped spinning top the second high-precision skill toy from the same collaboration, part of ISC's push to use bearings to teach science through toys.","webCardHtml":"\u003cp\u003eThe top measures about 41 percent of the diameter of the existing Big Wing model while keeping its spin performance, according to the developers. The precision bearing inside is the same type of ISC component used in cooling fan motors for data centers, and the body is manufactured in Japan using Mitsumi Seisakusho\u0026#39;s high-precision processing.\u003c/p\u003e\u003cp\u003eDesign work came from Sorohamu, which handled the SG Kendama pico that released in 2025. The shape was refined to be easy to handle even for professional performers. The bimetal model pairs an aluminum body with a stainless steel outer ring, while the monometal version uses stainless steel throughout to survive drops.\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eBimetal model\u003c/strong\u003e: Aluminum body, stainless steel outer ring, priced at 7,700 yen including tax\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eColored bimetal model\u003c/strong\u003e: Aluminum anodized body, brass outer ring\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eMonometal model\u003c/strong\u003e: Stainless steel body and outer ring, designed to withstand drops\u003c/li\u003e\u003c/ul\u003e","blueskyPost":"Big Wing pico's 35 mm body is small, but the real constraint is the bearing. NSK Micro Precision made the part, and a top only works if the bearing spins clean at that size.","twitterPost":"Big Wing pico's 35 mm body is the visible feat; the bearing from NSK Micro Precision is the actual constraint.","threadsPost":"Big Wing pico's 35 mm frame is the headline number, but the bearing is the real engineering constraint. NSK Micro Precision built the part, and a top only spins smoothly if the bearing holds tolerance at that scale.","newsletterBlurb":"ISC and Sorohamu have developed the Big Wing pico, a 35 mm bearing-equipped spinning top they say is the world's smallest of its kind. It goes on sale early at TOKYO TOY SHOW 2026 and hits general release September 1. Two versions launch: a bimetal model at 7,700 yen and a monometal model built to survive drops.","attributionJson":"[{\"source\":\"Dengeki Hobby Web\",\"url\":\"https://hobby.dengeki.com/news/3133012/\",\"title\":\"ISC and Sorohamu Develop the World's Smallest Spinning Top \\\"Big Wing pico\\\" Featuring Smooth-Rotating Precision Bearings! Early Release at TOKYO TOY SHOW 2026, General Release on September 1 (Tuesday)!\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4692,"outputTokens":757,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787981631,"createdAt":"2026-08-29T05:30:45.000Z","publishedAt":"2026-08-29T05:31:44.000Z","updatedAt":"2026-08-29T05:30:45.000Z"},"cluster":{"id":"c_aceb8c93164620d91b3cd53c","canonicalTitle":"スムーズに回転する精密ベアリングを搭載した世界最小の投げコマ「ビッグウィングpico」をISCとそろはむが開発！TOKYOおもちゃショー2026にて先行発売、9月1日（火）一般発売！","representativeArticleId":"a_d36497fe4a372057c8bb48f3","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"ビッグウィングpico\"],\"studios\":[\"NSKマイクロプレシジョン\",\"そろはむ\"],\"people\":[],\"type\":\"announcement\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-25T07:45:48.000Z","lastSeenAt":"2026-08-25T07:45:48.000Z","updatedAt":"2026-08-29T05:31:46.000Z"},"attribution":[{"source":"Dengeki Hobby Web","url":"https://hobby.dengeki.com/news/3133012/","title":"スムーズに回転する精密ベアリングを搭載した世界最小の投げコマ「ビッグウィングpico」をISCとそろはむが開発！TOKYOおもちゃショー2026にて先行発売、9月1日（火）一般発売！"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["ビッグウィングpico"],"studios":["NSKマイクロプレシジョン","そろはむ"],"people":[],"type":"announcement","domain":"other","is_roundup":false},"keyFacts":null}