GB/T 2861.10-1990 Die guide steel ball retaining ring GB/T2861.10-1990 Standard download decompression password: www.bzxz.net
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National Standard of the People's Republic of China Guide unit for press tools Subject content and scope of application GB/T 2861.10--90 Replaces GB2861.10-81 This standard specifies the materials, technical conditions, structural types and specifications of the steel ball retaining ring of the die guide unit. This standard is applicable to the rolling guide die frame of the die. Reference standards GB/T12446 Technical conditions for die frame parts GB3190 Chemical composition of aluminum and aluminum alloy processed products GB308 Rolling bearing steel balls GB2041 Brass plate Material, technical conditions, structural type and specifications of steel ball retaining rings 3 3.1 Material: LY11 GB3190 GB2041 2 Technical conditions are in accordance with the provisions of GB/T12446. 3.2 Structural type and specifications are shown in the figure and table. Approved by the State Administration of Technical Supervision on July 23, 1990 118 Implementation from May 1, 1991 3.4 Marking example: GB/T2861.10—90 Guide column diameter d=25mm, d. =30.5mm, length H=64mm, steel ball retaining ring made of LY11: steel ball retaining ring 25×30.5×64LY11GB/T2861.10119 Guide post diameter Steel ball retaining ring diameterwww.bzxz.net GB/T 2861.10--90 Part number, name and standard number Steel ball retaining ring length Retaining ring GB/T 2861.10 18 × 23.5 × 64 20 ×25.5×64 22×27.5×64 25 ×30.5 ×64 25×32.5× 28 ×35.5 × 23 × 39.5 × 35×42.5× 3(0I grade〉 4(0I grade) Number of steel balls Diameter of pillar GB /T 2861.10--90 Appendix A Structural type and specification of retaining ring (Supplement) GB/T2861.10—90 Additional remarks: This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Mould Standardization. This standard was drafted by the Mould Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Wang Huachang and Qin Guangwei. This standard is entrusted to the Mould Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation. 122 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.