BS-7823-1-1995 ISO-11687-1-1995.pdf
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1、BRITISH STANDARD BS 7823-1: 1995 ISO 11687-1: 1995 Pedestal plain bearings Part 1: Specification for pillow blocks Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:25:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7823-1:1995 This British Standard, having be
2、en prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1995 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference MCE/12 Draft for comment 92/79414 DC ISBN
3、0 580 24381 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee MCE/12, Plain bearings, upon which the following bodies were represented: Association of Bronze and Brass Founders British Plastics Federation Copper Developme
4、nt Association Institution of Diesel and Gas Turbine Engineers Institution of Mechanical Engineers Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:25:17 G
5、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7823-1:1995 BSI 10-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Types of pillow block1 4Dimensions2 5Shaft design2 6Materials2 7Design2 8Designation2 Figure 1 Examples of pillow blocks Si
6、ze range 9 to 283 Figure 2 Examples of pillow blocks Size range 35 to 715 Figure 3 Shaft design for non-locating (free) bearing (thrust bearing part Q)7 Figure 4 Shaft design for fixed bearing (thrust bearing parts A, B and K)7 Table 1 Pillow blocks Size range 9 to 284 Table 2 Pillow blocks Size ran
7、ge 35 to 716 Table 3 Shaft dimensions Size range 9 to 288 Table 4 Shaft dimensions Size range 35 to 719 List of referencesInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:25:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7823-1:1995 ii BSI
8、10-1999 National foreword This British Standard has been prepared by Technical Committee MCE/12. It is identical with ISO 11687-1:1995 Plain bearings Pedestal plain bearings Part 1: Pillow blocks, published by the International Organization for Standardization (ISO). The Technical Committee has revi
9、ewed the provisions of ISO 185:1988, ISO 426-1:1983, ISO 426-2:1983, ISO 630:1980, ISO 683-11:1987, ISO 2768-1:1989, ISO 2768-2:1989, ISO 3755:1991, ISO 4381:1991, ISO 12129-1 and ISO 12129-2 to which normative reference is made in the text, and has decided that they are acceptable for use in conjun
10、ction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference
11、s International StandardCorresponding British Standard ISO 1302:1992BS 308 Engineering drawing practice Part 2:1972 Recommendations for dimensioning (Technically equivalent) ISO 8602:1994BS 6615:1985 Specification for dimensional tolerances for metal and metal alloy castings (Identical) Summary of p
12、ages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 10, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cov
13、er. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:25:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7823-1:1995 BSI 10-19991 1 Scope This part of ISO 11687 specifies design characteristics for pillow blocks for size ranges 9 to 28 and 35 to 71, as well as
14、 design characteristics for shafts. It is applicable to pillow blocks used mainly in electrical and turbo engineering industries. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 11687. At the time of p
15、ublication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 11687 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registe
16、rs of currently valid International Standards. ISO 185:1988, Grey cast iron Classification. ISO 426-1:1983, Wrought copper-zinc alloys Chemical composition and forms of wrought products Part 1: Non-leaded and special copper-zinc alloys. ISO 426-2:1983, Wrought copper-zinc alloys Chemical composition
17、 and forms of wrought products Part 2: Leaded copper-zinc alloys. ISO 630:1980, Structural steels. ISO 683-11:1987, Heat-treatable steels, alloy steels and free-cutting steels Part 11: Wrought case-hardening steels. ISO 1302:1992, Technical drawings Method of indicating surface texture. ISO 2768-1:1
18、989, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications. ISO 2768-2:1989, General tolerances Part 2: Geometrical tolerances for features without individual tolerance indications. ISO 3755:1991, Cast carbon steels for general engineering p
19、urposes. ISO 4381:1991, Plain bearings Lead and tin casting alloys for multilayer plain beatings. ISO 8062:1994, Castings System of dimensional tolerances and machining allowances. ISO 12129-1:, Plain beatings Part 1: Fits1). ISO 12129-2:, Plain beatings Part 2: Tolerances on form and position and s
20、urface roughness for shafts, flanges and thrust collars1). 3 Types of pillow block According to their design, pillow blocks can be devised as follows, each characteristic being designated by a letter symbol. Housing: Heat dissipation: Shape of bore for journal bearing and type of lubrication: Thrust
21、 bearing: Seal: Type and dimensions subject to agreement Figure 1 and Figure 2 show examples of pillow blocks. These represent pillow blocks, which are ready to be installed, in the size ranges 9 to 28 and 35 to 71, respectively. The symbols above Figure 1 and Figure 2 explain only the type illustra
22、ted; the complete type required shall be specified in the above-mentioned sequence when ordering. 1) To be published. GPillow block, without cooling fins RPillow block, with cooling fins NNatural cooling WWater cooling in oil sump UCirculation pump and natural cooling TCirculation pump and water coo
23、ling in oil sump ZRecirculating oil lubrication with external cooling of oil CCircular cylindrical bore without oil ring LCircular cylindrical bore with split oil ring not fixed on a rotating shaft YLobed bearing with two sliding surfaces without oil ring VLobed bearing with four sliding surfaces wi
24、thout oil ring QWithout sliding surfaces non-locating (free) bearing BPlain sliding surfaces with oil grooves (guide bearing) KWedge surfaces(design and dimensions at the manufacturers discretion) ATilting pads Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:
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