GB/T 22775-2008 English PDF

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GB/T 22775-2008: Gears for timekeeping instruments -- Contrate gears
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22775-2008	279	Add to Cart	3 days	Gears for timekeeping instruments -- Contrate gears	Valid

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Basic data

Standard ID: GB/T 22775-2008 (GB/T22775-2008)
Description (Translated English): Gears for timekeeping instruments -- Contrate gears
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y11
Classification of International Standard: 39.040.10
Word Count Estimation: 12,188
Date of Issue: 2008-12-30
Date of Implementation: 2009-09-01
Regulation (derived from): National Standard Approval Announcement 2008 No.24 (Total No.137)
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 terms timing equipment face gear, tooth, Code and its parameters. This standard applies to watch, time pocket watch dial needle institutions face gear and cylindrical gear, gear face gear is active, modulus of 0. 07 mm ~ 1 mm in the perpendicular axis, perpendicular to the axis of the instrument geared can also refer to the use. NOTE: To enable the sub face gear transmission having good properties. This standard face gear tooth parameters given in Appendix A cylindrical gear should match use.

GB/T 22775-2008: Gears for timekeeping instruments -- Contrate gears

---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.
Gears for timekeeping instruments. Contrate gears ICS 39.040.10 Y11 National Standards of People's Republic of China Timing equipment gear face gear Posted 2008-12-30 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is based on the original development of light industry standard QB/T 2092-1995 "timing equipment gear face gear" on. Appendix A of this standard is a normative appendix. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee of the watch. This standard was drafted. Tianjin Seagull Watch Group Co., Ltd., Institute of Light Industry watch. The main drafters of this standard. Ma Guangli, Wang Lixin, Zhou Wenxia, \u200b\u200bKim Young-sook. From the date of implementation of this standard, the original light industry standard QB/T 2092-1995 "timing equipment gear face gear" on its own Abolished. Timing equipment gear face gear

1 Scope

This standard specifies the terms, tooth, code and timing equipment face gear parameters. This standard applies to watches, pocket watch dial needle institutions face gear and cylindrical gear, face gear for the active, modulus Gear 0.07mm ~ 1mm vertical axis intersect, gear instrumentation orthogonal axes can also refer to use. Note. To make a good vice face gear transmission characteristics of the face gear tooth parameters of this standard given in Appendix A cylindrical gear should match use.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 Surrounded by the cylindrical surface of the outer ring of the face gear. 2.2 The planes of the tooth top arc through the center of the face gear [the plane perpendicular to the face gear axis line) in Fig. 1c) are shown in Fig. 1b A straight line]. 2.3 A specific location in the alveolar symmetrical face gear centerline of [Fig. 1b)].

3 face gear tooth and code

3.1 toothed configuration Toothed face gear distributed over its outer cylindrical surface, constituted by the space curve. When alveolar symmetrical to the center line of the face gear when [Fig. 1a) and Figure 1b)], in A tooth to tooth projection view from the top of the arc, the arc root and arc tangent connecting addendum and the tooth root arc straight Line constituted. a) front view Figure 1 and face gear tooth code ......

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