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1、 STD-JIS B 4802-ENGL 1790 1i733b08 0550834 8OLi I JIS JAPANESE I NDUSTRIAL STAN DARD Translated and Published by Japanese Standards Association Circular saw blades for woodworking ICs 79.120.20 Descriptors : circular saws (machines), woodworking machines, cutting tools, Reference number : JIS B 4802
2、 : 1998 (E) woodworking, blades 4s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or networking permitted without license from IHS -,-,- STDDJIS B 4802-ENGL 179
3、8 m i733bO8 0550835 740 m B 4802 : 1998 Foreword This translation has been made ,ased on the origina Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardiza
4、tion Law. Consequently, JIS B 4802:1973 is replaced with JIS 3 4802:1998. This revision is intended to conform to corresponding International Standard, IS0 2935:1974, Circular saw blades for woodworking - Dimensions and practical use. Attention is drawn to the possibility that some parts of this Sta
5、ndard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are no
6、t responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 1950-08-14 Date of Revision: 1998-03
7、-20 Date of Public Notice in Official Gazette: 1998-03-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Machine Elements JIS B 4802 :1998, First English edition published i n 1998-07 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-
8、ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. Q JSA 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,
9、 including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or netw
10、orking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD (;13 JIS B 4802 : 1998 Division of outside diameter 630 or under Exceeding 630 Circular saw blades for woodworking Variation of thickness (in a single saw) 0.06 or under 0.1 or under Introduction This Japanese Industrial St
11、andard has been made on the basis of IS0 2935, Circular saw blades for woodworking - Dimensions published in 1974 as the first edition, without changing the technical contents except the classes and their shapes and dimensions specified conventionally in the Japanese Industrial Standard. Besides, th
12、e items (quality, material, test method, inspection, designation of products and marking) not specified in the corresponding International Standard were also added to this Japanese Industrial Standard. 1 This Japanese Industrial Standard specifies the circular saw blades for woodworking (hereafter r
13、eferred to as “circular saw“). Those of special type such as miter saws are excluded. Scope Remarks: The following is the corresponding International Standard to this Standard: IS0 2935:1974 Circular saw blades for woodworking - Dimensions 2 Normative references The following standards contain provi
14、sions which, through references in this Standard, constitute provisions of this Standard. The most recent editions of the standards indicated below shall be applied. JIS B 7502 Micrometer callipers JIS B 7503 Dial gauges JIS B 7726 JIS G 4401 JIS Z 2245 Rockwell and Rockwell superficial hardness tes
15、ting machines Carbon tool steels Method of Rockwell and Rockwell superficial hardness test 3 Quality 3 . 1 and the finish shall be good. Appearance The appearance shall be free from cracks, flaws harmful in use 3 . 2 Variation of thickness be as given in Table 1. The variation of thickness of the ci
16、rcular saw shall Table 1 Variation of thickness Unit: mm Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or networking permitted without license from IHS -,-,- S
17、TDOJIS B Li802-ENGL 1998 E 4933b08 0550837 513 = Division of outside diameter Hardness mm HRC 2 B 4802 : 1998 Variation of hardness (in single saw) HRC 3.3 Thickness The hardness and variation of hardness of the circular saw shall be as given in Table 2. Exceeding 630 Table 2 Hardness 40 to 51 5 or
18、under Division of 300 or under Exceeding 300 Exceeding 630 outside diameter up to and up to and including 630 including 1 O00 Axial runout 0.5 max. 0.9 max. 1.5 max. I 4 or under I 630 or under I 43 to 54 I Exceeding 1 O00 2.5 max. 3.4 Axial runout The axial runout of the circular saw shall be as gi
19、ven in Table 3. 4 Shape and dimensions Attached Table 1. The shape and dimensions shall be as given in 5 4401 or the materials equivalent or superior thereto in performance. Materials The materials for the circular saw shall be SK5 specified in JIS G 6 Test method 6.1 Thickness The thickness shall b
20、e measured at any four points on the circumference approximately 5 mm to 15 mm inside the bottom of gullet, using a micrometer specified in JIS B 7502. The variation of thickness shall be expressed with the difference between the maximum value and the minimum value out of the values measured on a si
21、ngle saw. 6.2 Hardness The hardness shall be measured at the similar points to those in 6 . 1 using a Rockwell hardness testing machine specified in JIS B 7726 in accordance with the test method specified in JIS Z 2245. The variation of hardness shall be expressed with the difference between the max
22、imum value and the minimum value out of the values measured on a single saw. 6.3 Axial runout The axial runout shall be measured, as shown in Fig. 1, on the circumference approximately 5 mm to 15 mm inside the bottom of gullet using a dial gauge specified in JIS B 7503, and the maximum value of the
23、measured values shall be taken as the axial runout. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or networking permitted without license from IHS -,-,- STDeJI
24、S B Y802-ENGL 1478 m 11933b08 0550838 45T I 3 B 4802 : 1998 E E m rl Measuring position of axial runout Circular saw shaft Fig. 1 Axial runout Remarks: The measuring apparatus shown is an example. The diameter of the flange in this case shall be not more than of the outside diameter of the circular
25、saw. 7 the result shall conform to the requirements in 3 and 4. Inspection Inspection shall be carried out on quality, shape and dimension and 8 The designation of products shall be given by the number of Standard or title of Standard, outside diameter, thickness and diameter of hole. Designation of
26、 products Examples: JIS B 4802 4001.630 4001.630 Circular saw blades for woodworking 9 Marking The following information shall be marked on the product. a) Outside diameter (O) x thickness (2) x diameter of hole (d) b) c) Name of material or symbol Manufacturers name or its abbreviation Copyright Ja
27、panese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or networking permitted without license from IHS -,-,- 4. B 4802 : 1998 12.5 Attached Table 1 Shape and dimension I 80, 9 0 .
28、 loo The shape of teeth is shown as an example. Unit: mm T Thickness Tolerance 0.8 0 . 8 , 1 0 . 8 , 1 , 1.2 0 . 8 , 1, 1 . 2 , 1 . 4 1 , 1 . 2 . L & 1 . 6 , 2 1 . 2 . 0. 1 . L 2 , 2 . 5 - 1 . 2 , 0, 1 . 6 . 2 , 2 . 5 , 3 . 2 - 1 . 4 , 0, 2 , 2 . 5 , 3 . 2 , 4 0, z, 2 . 5 , 3 . 2 , 4 - 2 , u, 3.6, 4
29、 5 4 . 5 , 5, 6 5 , 7 in the case of the thickness of 2 or under * 0.06 In the case of the thickness exceeding 2 kO.1 Number of 2 5 . 4 , 3 0 , a5 31.75, 40 38.1, 40 70. 80, 100 60 Remarks 1 The tolerance on the diameter of hole shall be H11. However, H9 is intended for particular uses, such as: use
30、 on the same spindle with several blades, blades turning at high speed. 2 The values underlined in the Table are the dimensions not included in the original International Standard. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=
31、Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or networking permitted without license from IHS -,-,- Errata for JIS (English edition) are printed in Standardization journal, published monthly by the Japanese Standards Association, and also provided to subscribers of JIS (Englis
32、h edition) in Monthly Information. Errata will be provided upon request, please contact: Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:17:44 MSTNo reproduction or networking permitted without license from IHS -,-,-