1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 21.100.10 ISBN 0-626-16227-0 SANS 11687-2:2005Edition 1ISO 11687-2:1995Edition 1SOUTH AFRICAN NATIONAL STANDARD Plain bearings Pedestal plain bearing
4、s Part 2: Side flange bearings This national standard is the identical implementation of ISO 11687-2:1995 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012
5、 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 11687-2:2005 Edition 1 ISO 11687-2:1995 Edition 1 Table of changes Change No. Date Scope Abstract Specifies design characteristics for side flange bearings for the size range 9 to 28, as well as desig
6、n characteristics for shafts. Keywords bearings, designation, dimensions, manufacturing requirements, material specifications, plain bearings, specifications. National foreword This South African standard was approved by National Committee StanSA TC 5120.02, Bearings, in accordance with procedures o
7、f Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. INTERNATIONAL STANDARD ISO 11687-2 First edition 1995-02-01 Plain bearings - Pedestal plain bearings - Part 2: Side flange bearings Palier-s lisses - Paliers lisses 2 chaise sur Ie so/ - Partie 2: Paliers 2 bride Iat the
8、complete type required shall be speci- fied in the above-mentioned sequence when ordering. 4 Dimensions See figures 1 to 3 and tables 1 and 2. The side flange bearings are not expected to conform to the designs illustrated in figure 1; compliance is only required with respect to the dimensions speci
9、- fied. NOTE 1 All dimensions are given in millimetres. Details which are not specified shali be Chosen as appropriate. 5 Shaft design See figures 2 and 3 and table2. 6 Materials Housing: Grade 300 in accordance with ISO 185; other ma- terials subject to agreement Half-bearing: Bearing back: Fe 360
10、B in accordance with ISO 630 Cl0 or Cl 5 E 4 in accord- ante with ISO 683-11 Type of material at the manufacturers 200 to 400 in accordance with ISO 3755 discretion Bearing metal: Lead-tin-alloy in accordance with ISO 4381, or subject to agreement Seal: Copper alloy, aluminium alloy or plastic, subj
11、ect to agreement Oil ring, not fixed on rotating shaft: Copper-zinc alloy in accordance with ISO 426, or subject to agreement 0 ISO ISO 11687=2:1995(E) 7 Design housing shall be connected to each other by means of appropriate openings above the oil level. General tolerantes: All bearing housing conn
12、ections on both sides; other connecting dimensions and arrangements than those given in figure 1 as well as additional connections subject to agreement. For machined surfaces: ISO 2768-1 and ISO 2768-2 - mH Type of inspection plate at the manufacturers discretion. For unmachined surfaces: ISO 8062 -
13、 CT 9 (for grade 3001, or corre- sponding Standards for other materials agreed upon. With bolts and screws for housin at the manufacturers discretion. g park and Seals, Bolts and screws for the housing flange do not form part of the delivery. Surface roughness in accordance with ISO 1302: Flange bea
14、ring: General: Mounted surfaces: Ra = 3,2 Pm Sliding surfaces: Ra = 0,8 Pm Particular agreements shall be made for applica- tions under special conditions (e.g. inclined pos- itions). Shaft: Chamfered edges: type of edge chamfering at the manufacturers discretion. See table 2, footnote 1. Housing: I
15、f the bearing is only applica ble to one directi rotation, a directional arrow shall b #e provided on of Flange bearing housing with lifting eye bolts or means of conveyance at the manufacturers dis- cretion. 8 Designation EXAMPLE The inner surfaces of the housing shall be clean and shall have a coa
16、t of paint resistant to oil and solvents. Designation of a side flange bearing of size 14, shaft diameter 125 mm, housing with cooling fins (F), for recirculating oil lubrication with external cooling of oil (Z), circular cylindrical bore with Split oil ring not fixed on a rotating shaft for emergen
17、cy run (L) and thrust bearing with wedge surfaces (K): The outer surfaces of the housing shall be pro- tected against corrosion. For the purpose of pressure compensation, the individual oil spaces within the flange bearing Side flange bearing ISO 11687-2 - 14 - 125 - FZLK 3 ISO 11687=2:1995(E) F.LB
18、F.LK Inspection plate-1 Oil drainage (example) F LB L F.LK h F LQ 64 - s -d= bl /_ - .ow w 1 d15 4 e8 160/180 1401 4 225 250 280 I I d16 6 2,5 2,5 6 6 10 1) Limit deviations for shafts and tolerantes of form and Position and surface roughness in accordance with ISO 12129-1 and ISO 12129-2. 2) Normal
19、 axial clearance of 0,5 mm is provided. If a Change in direction of the axial loads of axial thrusts is to be expected, dimension 6, may be reduced by 0,2 mm. If a fixed bearing (thrust bearing Parts B, K) is only needed for the test run, di- mension b may be increased. 3) If the non-locating (free)
20、 bearing (thrust bearing part Q) has to allow major axial movements (e.g. due to thermal ex- pansion or large constitutional axial clearance), dimension b8 may be increased. 4) The clearance groove d15 may be omitted if it is equal to or smaller than the shaft diameter D. 5) The radii rl and r2 may be replaced by an undercut. 7 Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
