SAE J740_201110 PDF
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Countersunk Square Holes for Cutting Edges and End Bits(STABILIZED Oct 2011)
Description
To be used on cutting edges and end bits in conjunction with No. 3 head plow bolts (Ref. ANSI B18.9) typically used on off-road self-propelled work machines as described in SAE J1116.
Cutting edges are further defined in SAE J737, J739 and J1304.
End bits are further defined in SAE J63.
1
When section thickness exceeds A in drawing 1 (Figure 2) (countersunk one side) or B in drawing 4 (countersunk both sides), use counterbore with diameter D, as shown in cross section drawings 2, 5 and 6, or extended countersink C, as shown in cross section drawings 3 and 7.
2
The inscribed circle of the square holes shall be concentric with countersink or counterbore within 0.03 in (0.8 mm).
History
| J740_201110 | 2011-10-25 | Latest | Stabilized |
| J740_200602 | 2006-02-05 | Historical | Reaffirmed |
| J740_198607 | 1986-07-01 | Historical | Revised |
| ISSUING COMMITTEE | MTC1, Earthmoving Machinery |
|---|---|
| DATE | 2011-10-25 |
| DOI | |
| ISCURRENT | Current |
| PAGE | 3 |
| PUBLISHER | SAE International |
| REVISED | STABILIZED |
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