GB/T 2861.2-2008 English PDF

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GB/T 2861.2-2008: Guide unit for stamping dies -- Part 2: Guide pillars for ball-bearing
Status: Valid

GB/T 2861.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2861.2-2008	139	Add to Cart	3 days	Guide unit for stamping dies -- Part 2: Guide pillars for ball-bearing	Valid
GB/T 2861.2-1990	279	Add to Cart	3 days	Guide unit for press tools--Guide pillars, type B	Obsolete

Similar standards

GB/T 45677   GB/T 6110   JB/T 3943   GB/T 2861.1   GB/T 2861.3   GB/T 2861.11   

Basic data

Standard ID: GB/T 2861.2-2008 (GB/T2861.2-2008)
Description (Translated English): Guide unit for stamping dies -- Part 2: Guide pillars for ball-bearing
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J46
Classification of International Standard: 25.120.30
Word Count Estimation: 6,634
Date of Issue: 2008-04-10
Date of Implementation: 2008-10-01
Older Standard (superseded by this standard): GB/T 2861.3-1990
Quoted Standard: JB/T 8070; JB/T 8071
Regulation (derived from): National Standard Approval Announcement 2008 No.5 (Total No.118)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the die roll oriented guide pillar structure, dimensions and markings. This section applies to die with a rolling guide guide guide posts.

GB/T 2861.2-2008: Guide unit for stamping dies -- Part 2: Guide pillars for ball-bearing

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Guide unit for stamping dies Part 2. Guide pillars for ball-bearing ICS 25.120.30 J46 National Standards of People's Republic of China Replacing GB/T 2861.3-1990 Part 2 of the die guide. rolling guide pillar Posted 2008-04-10 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 2861 "die guide" is divided into 11 parts. --- Part 1. die guide slide guide pillar; --- Part 2. Die rolling guide guide guide column; --- Part 3. Die guide slide guide bushings; --- Part 4. guide die rolling guide bushings; --- Part 5. die guide the ball retainer; --- Part 6. die guide cylindrical spiral compression spring; --- Part 7. guide sliding guide die removable guide post; --- Part 8. die guide rolling guide removable guide post; --- Part 9. Die guide bushing; --- Part 10. Die guide washer; --- Part 11. Die guide plate. This section GB/T 2861 Part 2. This Part replaces GB/T 2861.3-1990 "die guide C-pillar." This section compared with the GB/T 2861.3-1990, the main changes are as follows. --- The standard name be changed to "die guide Part 2. rolling guide pillar"; --- Added "preface" and "normative references"; --- Increased rolling guide pillar of sizes; --- Material instead recommended. This part of the National Standardization Technical Committee proposed die. This part of the National Standardization Technical Committee mold (SAC/TC33) centralized. This section is drafted. Guilin Institute of Electrical Science, Guilin University of Electronic Science and Technology, Zhenjiang Chuanshan mold factory Hangzhou Xiaoshan precision molds standard Quasi Factory. The main drafters of this section. WENG Shi Zhen, Wang Yi Liao Qi Wei root, Zhang Yuqin, Bong double. This part of the standard replaces the previous editions are. --- GB 2861.3-1981; --- GB/T 2861.3-1990. Part 2 of the die guide. rolling guide pillar

1 Scope

This section provides a guide die rolling guide pillar structure, dimensions and marking. This section applies to the die guide with rolling guide pillar.

2 Normative references

The following documents contain provisions which, through reference to GB/T 2861 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. JB/T 8070 die mold parts and technical conditions JB/T 8071 to check the accuracy of the die mold

3 Dimensions

Rolling guide pillar structure and dimensions shown in Figure 1, Table 1. Un surface roughness R Rao 6.3μm. allowed to remain a center hole. b allowed to keep the center hole, and limit the process is related to the structure and size is determined by the manufacturer. c pressed into the end allows the use of imported stepped structure. NOTE. R determined by the manufacturer. Figure 1 rolling guide pillar

4 material and hardness

Materials selected by the manufacturer, recommended 20Cr, GCr15. 20Cr carburizing depth of 0.8mm ~ 1.2mm, hardness 60HRC ~ 64HRC; GCr15 Hardness 60HRC ~ 64HRC. ......

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