GB/T 2861.10-1990 Die guide steel ball retaining ring

GB/T 2861.10-1990 Die guide steel ball retaining ring GB/T2861.10-1990 Standard download decompression password: www.bzxz.net

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:bzxz.net
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 diameter
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
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