asi UDC 621.8866 Cancellation of designated item for JIS marking JAPANESE INDUSTRIAL STANDARD Split Pins JIS B 1351 Translated and Published i by Japanese Standards Association Printed in Japan 5s aMIn the event of any doubt arising, the original Standard in Japanese is to be final authority.08/ UDC 621.886.5 JAPANESE INDUSTRIAL STANDARD avis Split Pins B 1351-1987 This Japanese Industrial Standard specifies the steel split pins, herein- after referred to as the "steel pins", brass split pins, hereinafter referred to as the "brass pins" and stainless steel split pins, hereinafter referred to as the "stainless pins", all for general use. Furthermore, in this Standard, where the steel pins, brass pins and stainless pins are generically called, they shall be called simply the pins. Remark: The shape and dimensions of split pins specified in this Standard are in accordance with ISO 1284-1976 (Split pins- Metric series). a 2. “Bending Even after a pin is bent $ time repeatedly approximately 90 degrees outward in one direction as given in the following Figure, a crack shall not be produced on the pin. However, the bending radius (,) shall be approxi- mately the same as the diameter of the pin (d) . Figure a Applicable Standards and Corresponding International Standard: See page 6. of2 B 1351-1987 3. Hardnesses The hardnesses of the pins shall conform to Table 1. Table 1 Division of nosinal diameter "mm Over 1.6 to 2.5 incl. 4. Shape and Dimensions The shape and dimensions of the pins shall conform to Attached Table. O Appearance The surface of the pin shall be smooth and free from defects injurious to use, such as cracks, flaws, burrs, rust and gaps on contacting surfaces. 6. Materials The materials of the pins shall be in accordance with Table 2. Table 2 Division Yatersal Steel pin SHRM 6 to 17 of JIS G 3505 or SUCH 6 R to 17 R of JIS G 3539 Brass pin © 2600 W or C 2700 W of JIS H 3260 Stainiess pin | JIS ¢ 4315 7. Surface Treatment ‘The pins shall generally be not subjected to surface treatment. Par- ticularly in the case where plating or other surface treatment is required, it shall be designated by the purchaser. Furthermore, the steel pins which have been electroplated shall be subjected to the treatment of brittleness elimination, as required. 8. Inspection Inspection of the pins shall be in accordance with the following. However, the sampling inspection system in the lot inspection shall be as agreed on between the parties concerned. ayoRi B 1351-1987 (1) Bending Inspection In the. bending inspection of the pins, the results Shall conform to the requirements of 2. (2) Hardness Inspection The hardness inspection of the steel pins shall Be cartiod out In adcordanco with the Vickers hardness testing method of JIS Z 2244, Rockwell hardness testing method of JIS Z 2245 or the method in accordance with this, as appropriate, and the results shall ; conform to the requirements of 3. (3) Inspection of Shape and Dimensions Inspection of shape and di- Tenione of the pits chal be carried out by the direct measurement, the limit gauge and other methods, and the results shall conform to the requirements of 4. (4) Inspection on Appearance Inspection of appearance of the pins shall be gurried cut Ey the visual inspection, and the results shall conform to the requirements of 5. QD i 9. Designation The pins shall be designated by the Standard number or title of Standard, class, nominal diameter x length (/) and material (1). However, if any desig- nated items are particularly required, they shall be indicated after the designation. Note (1) The material may also be indicated by the general name of material of the products. Example: JIS B 1351 2%20 SWRM 10 Split_pins 2x20 Pointed end 1 1 ' Standard Nominal (Material) Pesignated number or diameter ‘item title of x a standard length 10, Marking on Package The package shell be marked with the following information on the outer surface. mM @) (3) «a @) at Title of Standard Nominal diameter x length Material (The general name of the material of the products may also be used.) Quantity and. designated items Manufacturer's name or its abbreviation (2) Note (2) For the abbreviation, the registered trademark should be used as far es possible.4 B 1351-1987 Attached Table. Shape and Dimension of Split Pins ecb 1a 2, (Cone point) (Flat point) Unit: mm Tooinal aveeer [04] 08] 1 [32] 16] 2 [BS] SaT eS TO wpe sts oso7 os TLép1ey a3} 29, 37] 4a) sop 7s] ss pa}is.4] 195 Foterance =O 82 —8s Tepe Tap szpm [ara] so. w.6 Totrance | 8 83] =Br| ~ 85) ~2 Pol Bs] Sa Bal Ef ape [2 3s safe 2 [6 Pe a tieieon| 1E[ LO] 1 x st s2t4 Ss} ea} eat ed bl Minimum [0.6 2] 1.6] 2 S27 3.2] 3.2] 3.2 Jone Loe x nae 3 | 0 fas [Te #4y [Pott [or unser z 1 | 20 0] 32070 -[ = Fu eto = o[ae a] [110 EH Eman [or maar [a my [110 [160-[— EEE —[eference] 0.6] 0 ab spat 4 oe | ie | a 3 6 3 7. i 1% 16 16 ze B Ea s 36 wo, Ss 30) 36. S slealelel= 35 G2ol 5 B 1351-1987 Note (3) In the case of crevice pins which are to be subjected to the repeated load in the direction vertical to axis the split pins, one step larger than the those in this Table shall be used. i Remarks 1, The nominal diameter shall be in accordance with the diameter of the pin hole. 2, The value ¢ shall be the value between the end and the point $ from the end. 3. ‘The shape of the end may be either cone point or flat point. In the case where either of them is requifed, it shall be 50 designated. 4, The length (/) shall be restricted to those given in the frame of the bold lines, and the numerical values in the frame indi- cate their tolerances. However, in the case where the viaue a of / other than given in this Table is particularly required, - the purchaser shall so designate. 5. The head shall not be inclined remarkably from the centre of axis. cara6. B 1351-1987 Applicable Standards: SIS G.3505-Low Carbon Steel Wire Rods JIS G 3539-Carbon Steel Wires for Cold Heading and Cold Forging JIS G 4315-Stainless Steel Wires for Cold Heading and Cold Forging JIS H 3260-Copper and Copper Alloy Wires JIS Z 2244-Method of Vickers Hardness Test JIS % 2245-Method of Rockwell and Rockwell Superficial Hardness Test Corresponding International Standard: ISO 1234-1976 Split pins-Metric series ne61 a B 1351-1987 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1952-03-08 Date of Revision: 1987-10-01 Cy Date of Public Notice in Official Gazette: 1987-10-03 Investigated by: Japanese Industrial Standards Committee Divisional Council on Machine Elements This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107’ Japan © ISA, 1988 Printed in Tokyo by Hobbunsha Co., Ltd 2001-02-14 Printed by JSA