GB/T 12613.3-2011Plain bearings -- Wrapped bushes -- Part 3: Lubrication holes, grooves and indentations (English PDF)

Foreword

GB/T 12613 "Plain bearings - hub" consists of the following seven parts.

--- Part 1. Dimensions;

--- Part 2. outside and inside diameter of the test data;

--- Part 3. Lubrication holes, grooves and pockets;

--- Part 4. Materials;

--- Part 5. diameter test;

--- Part 6. inner diameter of the test;

--- Part 7. Measurement of wall thickness of thin-walled sleeve.

This part of GB/T 12613 Part 3.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB/T 12613.3-2002 "Plain bearings - Wrapped bushes - Part 3. Lubrication holes, lubrication grooves and lubrication hole". Compared with GB/T 12613.3-2002, the main changes are as follows.

--- Chapter 2 delete references GB/T 12613.2-2002, GB/T 12613.4-2002;

--- Increase in Chapter 4, "Symbols and units";

--- Increase in Chapter 5, "Overview";

--- Increasing the N1 type oil hole depth limit deviations (see Table 7);

--- Increased N3 lubricants hole pattern (see 8.4);

--- Increased Chapter 9 "mark." this section uses the translation method identical with the international standard ISO 3547-3:2006 section "sliding bearings - Wrapped bushes 3. Lubrication Holes, grooves and pockets. " Consistency correspondence between this part of international documents and normative references of our files are as follows.

--- GB/T 2889.1-2008 Plain bearings - Terms, definitions and classification - Part 1. Design, bearing materials and their properties (ISO 4378-1:1997, IDT).

And ISO 3547-3:2006 as compared to this section made the following editorial changes.

--- To increase the range. "Note 2. Except otherwise specified and the specified unit, GB/T 12613 in this section All dimensions in mm Meter. "Delete the text on the table," millimeters ";

--- Equivalents adoption of international standards in place of the standard corresponding to international standards.

This part is proposed by China Machinery Industry Federation.

Bearing this in part by the National Standardization Technical Committee (SAC/TC236) centralized.

This section is responsible for drafting unit. Productivity Promotion Center in the machine.

Participated in the drafting of this section. Zhejiang Changsheng Sliding Bearings Co., Ltd., Zhejiang SF Oilless Bearing Co., Ltd., Zhejiang Bearing Co., Ltd., Bearing Co., Ltd. Jiashan Feng into three complex.

This part of the standard replaces the previous editions are.

--- GB/T 12613-1990;

--- GB/T 12613.3-2002.

Plain bearings - Wrapped bushes Part 3. Lubrication holes, grooves and pockets

1 Scope

GB/T 12613 provisions of this part of the lubrication holes Single- and multi-bearing material Plain bearings - bushes, grooves and Oil hole size.

Note 1. Lubrication holes, grooves and pockets in line with the provisions of this part of the rolling bush, dimensions and materials shall conform to GB/T 12613.1 and GB/T 12613.4 Provisions.

Note 2. In addition to the marked and designated special units, GB/T 12613 in this section All dimensions are in millimeters.

2 Normative references

The following documents for the use of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 12613.1-2011 Plain bearings - Wrapped bushes - Part 1. Dimensions (ISO 3547-1:2006, IDT) ISO 4378-1 Plain bearings - Terms, definitions and classification - Part 1. Design, bearing materials and their properties (Plainbearings-Terms, definitionsandclassification-Part 1. Design, bearingmaterialsandtheirproperties)

3 Terms and Definitions

Terms and definitions, as defined in ISO 4378-1 apply to this document.

4 Symbols and units

Symbols and units used in this section are shown in Table 1.

Table 1 Symbols and units

Symbol Description Unit B bush width mm c diamond lubricant pockets side length mm Di mm inner diameter of the sleeve db lubricant hole diameter mm dL lubricant hole diameter mm Do sleeve diameter mm e lubrication groove spacing mm n1, n2 lubricating groove width mm R Radius mm