JB/T 7645.3-2008Guide units of stamping dies - Part 3: Small guide bushes (English PDF)

1 Foreword

JB/T 7645.3-2008 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 1 February 2008 and has been in force since 1 July 2008.

It replaces the earlier edition JB/T 7645.3-1994.

It is one of 15 parts of the JB/T 7645 series.

2 Scope

This standard is a recommended Chinese machinery industry standard and the third part of the series on guide units of stamping dies, the part devoted to small guide bushes. It specifies the dimensions of the small guide bush used in the guide unit of a stamping die and the marking by which it is identified. The components themselves belong to the guide units of stamping dies. It quotes JB/T 7653. The Ministry of Industry and Information Technology issued the standard in place of JB/T 7645.3-1994, and the classifications recorded for it are J46 in the Chinese system and 25.120.30 in the international system.

3 Normative references

JB/T 7645.3-2008 cites the following standards, which apply in full or in part through the references made to them in its clauses.

JB/T 7653

4 About this standard

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

English translation: about 15 pages

5 Related standards

Other parts of this standard:

JB/T 7645.1-1994 — Guiding devices for stamping dies - Type A small guide pillars

JB/T 7645.1-2008 — Part 1: Small guide pillars - Type A

JB/T 7645.2-1994 — Guiding devices for stamping dies - Type B small guide pillars

JB/T 7645.2-2008 — Part 2: Small guide pillars - Type B

JB/T 7645.4-1994 — Guiding devices for stamping dies - Plate-clamped guide pillars

JB/T 7645.4-2008 — Part 4: Plate-clamped guide pillars

JB/T 7645.5-1994 — Guiding devices for stamping dies - Plate-clamped guide bushings

JB/T 7645.5-2008 — Part 5: Plate-clamped guide bushes

JB/T 7645.6-1994 — Guiding devices for stamping dies - Clamping plates

JB/T 7645.6-2008 — Part 6: Clamping plates

JB/T 7645.7-1994 — Guiding devices for stamping dies - Guide pillar holders

JB/T 7645.7-2008 — Part 7: Guide pillar holders

JB/T 7645.8-1994 — Guiding devices for stamping dies - Guide bushing holders

JB/T 7645.8-2008 — Part 8: Guide bush holders

Other editions:

JB/T 7645.3-1994 (earlier edition)

6 Classification and status

International classification (ICS): 25.120.30

Chinese Standard Classification (CCS): J 46

Prefix JB/T: recommended standard.