(Clause 9.1)
All dimensions in millimetres.
Figure description:
- Entity: Mechanical BUSH.
- Views: Side-view cross-section and end-view showing a hexagonal profile.
- Dimensional Labels:
- A: Overall length.
- L: Length of the tapered/threaded shank.
- T: Thickness of the hexagonal head.
- B: Width across the flats of the hexagonal head.
- Key Features: Hexagonal head for tightening and internal threading (indicated by hidden dashed lines in the circular profile.
- Measurement Units: Millimetres.
BUSH i) | Normal Size: External Threads=8, Internal Threads=6, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=12.5, Thickness of Hexagon T, Max=6, Minimum Overall Lengths A, Min=18.5, Width Across Flats of Hexagon B=15.5 ii) | Normal Size: External Threads=10, Internal Threads=8, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=12.5, Thickness of Hexagon T, Max=7, Minimum Overall Lengths A, Min=20.5, Width Across Flats of Hexagon B=17.9 iii) | Normal Size: External Threads=15, Internal Threads=8, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=17.5, Thickness of Hexagon T, Max=8, Minimum Overall Lengths A, Min=25.5, Width Across Flats of Hexagon B=23.0 nan | Normal Size: Internal Threads=10, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=17.5, Thickness of Hexagon T, Max=7, Minimum Overall Lengths A, Min=25.5, Width Across Flats of Hexagon B=23.0 nan | Normal Size: Internal Threads=10, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=19, Thickness of Hexagon T, Max=10, Minimum Overall Lengths A, Min=29, Width Across Flats of Hexagon B=27.8
| Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min | Thickness of Hexagon T, Max | Minimum Overall Lengths A, Min | Width Across Flats of Hexagon B | External Threads | Internal Threads | ||
|---|---|---|---|---|---|---|---|
| i) | Normal Size | 12.5 | 6 | 18.5 | 15.5 | 8 | 6 |
| ii) | Normal Size | 12.5 | 7 | 20.5 | 17.9 | 10 | 8 |
| iii) | Normal Size | 17.5 | 8 | 25.5 | 23.0 | 15 | 8 |
| Normal Size | 17.5 | 7 | 25.5 | 23.0 | 10 | ||
| Normal Size | 19 | 10 | 29 | 27.8 | 10 | ||
| iv) | Normal Size | 19 | 10 | 29 | 27.8 | 20 | 15 |
| v) | Normal Size | 21 | 10 | 31 | 35.3 | 25 | 15 |
| Normal Size | 21 | 10 | 31 | 35.3 | 20 | ||
| vi) | Normal Size | 24 | 11 | 35 | 47.2 | 32 | 15 |
| Normal Size | 24 | 11 | 35 | 47.2 | 20 | ||
| Normal Size | 24 | 11 | 35 | 47.2 | 25 | ||
| vii) | Normal Size | 24 | 13 | 37 | 52.0 | 40 | 20 |
| Normal Size | 24 | 13 | 37 | 52.0 | 25 | ||
| Normal Size | 24 | 13 | 37 | 52.0 | 32 | ||
| viii) | Normal Size | 27 | 14 | 41 | 61.1 | 50 | 25 |
| Normal Size | 27 | 14 | 41 | 61.1 | 32 | ||
| Normal Size | 27 | 14 | 41 | 61.1 | 40 | ||
| ix) | Normal Size | 32 | 16 | 48 | 79 | 65 | 32 |
| Normal Size | 32 | 16 | 48 | 79 | 40 | ||
| Normal Size | 32 | 16 | 48 | 79 | 50 | ||
| x) | Normal Size | 35 | 19 | 54 | 92 | 80 | 40 |
| Normal Size | 35 | 19 | 54 | 92 | 50 | ||
| Normal Size | 35 | 19 | 54 | 92 | 65 | ||
| xi) | Normal Size | 40 | 22 | 62 | 117 | 100 | 50 |
| Normal Size | 40 | 22 | 60 | 117 | 65 | ||
| Normal Size | 40 | 22 | 62 | 117 | 80 | ||
| xii) | Normal Size | 45 | 25 | 70 | 143 | 125 | 80 |
| Normal Size | 45 | 25 | 70 | 143 | 100 | ||
| xiii) | Normal Size | 45 | 25 | 70 | 168 | 150 | 80 |
| Normal Size | 45 | 25 | 70 | 168 | 100 | ||
| NOTE — External and internal threads shall be made as per IS 554. | Normal Size | NOTE — External and internal threads shall be made as per IS 554. | NOTE — External and internal threads shall be made as per IS 554. | NOTE — External and internal threads shall be made as per IS 554. | NOTE — External and internal threads shall be made as per IS 554. | NOTE — External and internal threads shall be made as per IS 554. | NOTE — External and internal threads shall be made as per IS 554. |