一、适用于GB1144-74《矩形花键联结》规定的花键孔加工。技术条件：JB3252-83
二、拉刀结构分三种形式:I型:花键拉刀。II型：倒角-花键复合拉刀。III型：圆孔-花键复合拉刀。
三、花键的外径配合精度有D和D4。键宽的配合精度有Dd和Dc4。以D*d*b组成下列A、B、C三种精度。
1、D(D)*d(D7)*b(Dd) (编号全加A表示）2、D(D)*d(D7)*b(De4) (编号全加B表示）3、D(D4)*d(D7)*b(De4) (编号全加C表示）
四、规格范围键数468101620如用户需要上述系列以外订货标注示例：
矩形花键接刀、BL1-1030-50
编 号 BL1-花键规格拉削长度10-1818-3030-5010-1818-3030-5010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-80D(D)*d(D7)*b(Dd) D(D)*d(D7)*b(De4) D(D4)*d(D7)*b(De4) I型II型I型II型I型II型4-101A4-201A4-101B4-201B4-101C4-201C102A202A102B202B102C202C103A203A103B203B103C203C104A204A104B204B104C204C105A205A105B205B105C205C106A206A106B206B106C206C107A207A107B207B107C207C108A208A108B208B108C208C109A209A109B209B109C209C110A210A110B210B110C210C111A211A111B211B111C211C112A212A112B212B112C212C113A213A113B213B113C213C114A214A114B214B114C214C6-101A6-201A6-101B6-201B6-101C6-201C102A202A102B202B102C202C103A203A103B203B103C203C104A204A104B204B104C204C105A205A105B205B105C205C106A206A106B206B106C206C107A207A107B207B107C207C108A208A108B208B108C208C109A209A109B209B109C209C110A210A110B210B110C210C111A211A111B211B111C211C112A212A112B212B112C212C113A213A113B213B113C213C114A214A114B214B114C214C115A215A115B215B115C215C4-15*12-44-18*15*54-20*17*64-22*19*86-16*13*3.56-20*16*46-22*18*56-25*21*56-26*23*66-28*23*66-30*26*66-32*26*66-32*28*76-34*28*76-35*30*106-38*33*106-40*35*1010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-8010-1818-3030-5050-8018-3030-5050-8080-120116A117A118A119A120A121A122A123A124A125A126A127A128A129A130A131A132A133A134A135A136A137A138A139A140A141A142A143A144A145A146A147A148A149A150A151A216A217A218A219A220A221A222A223A224A225A226A227A228A229A230A231A232A233A234A235A236A237A238A239A240A241A242A243A244A245A246A247A248A249A250A251A116B117B118B119B120B121B122B123B124B125B126B127B128B129B130B131B132B133B134B135B136B137B138B139B140B141B142B143B144B145B146B147B148B149B150B151B216B217B218B219B220B221B222B223B224B225B226B227B228B229B230B231B232B233B234B235B236B237B238B239B240B241B242B243B244B245B246B247B248B249B250B251B116C117C118C119C120C121C122C123C124C125C126C127C128C129C130C131C132C133C134C135C136C137C138C139C140C141C142C143C144C145C146C147C148C149C150C151C216C217C218C219C220C221C222C223C224C225C226C227C228C229C230C231C232C233C234C235C236C237C238C239C240C241C242C243C244C245C246C247C248C249C250C251C、规格范围花键规格范围拉削长度范围15*12*4～22*19*810-18-50-8016*13*3.5～90*80*2010-18-80-12036*32*6～72*62*1210-18-80-12026*21*3～125*112*1810-18-80-12038*33*3.5～82*72*730-50-80-12092*82*6～102*92*730-50-80-120用户需要上述系列以外的其他矩形花键拉刀、亦欢迎订货。货标注示例：
形花键接刀、BL1-10-111A 10-30D*26D7*4Dd
拉刀全长455575535400500465365510660745445590740755425585530460640850775540720860860495650770950420530620755500655780960460590700860605730870108050559070090560573087011405306257409555306257409556257409551090
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