ENGINEERING CALCULATORS
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Engineering calculators (Beta)
Compare two-part pitch mismatch with available bolt clearance under optimal translation along the row.
Click the grid to add ordered vertices. Edit coordinates in mm; separate holes with a blank line. The last vertex closes to the first automatically.
Choose units and enter numbers. Full-width digits and fractions such as 1/8 or 1 3/8 are accepted. Changing a unit converts the entered value.
Reference calculation only. Results do not certify suitability for an actual design or its safety.
Inputs: select a blue symbol to edit Results: red-orange values and lines
3D shows an illustrative extrusion. Its display length does not enter the section calculations. Edit dimensions in 2D.
ΔP=|PA−PB|+tA+tB; c=(DA−d)/2+(DB−d)/2+(LB−DB)/2 [slot only]; assemble if ΔP/2≤c.
Displayed values are rounded. Diagrams illustrate the calculation conditions. Initial material and fluid properties are examples; replace them with values for the actual material, temperature and conditions.
ReferenceEquations assume particular loads, supports and deformation ranges. Check inputs, units and the applicability of each equation. Diagrams explain conditions; they are not manufacturing drawings or proof of safety.
Material values are typical values or reference ranges, not certified product properties or ready-to-use design allowables. They vary with standards, product form, dimensions, temper and temperature. Check the specifications and inspection certificates for the actual product.
Displayed safety factors and checks apply only to the supplied inputs and calculation model. They do not automatically establish the safety of a complete design, including code compliance, service life, fatigue or joints. For actual design, manufacture and use, separately verify applicable regulations and standards, product specifications, and the necessary tests and engineering review.
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2枚の部品の穴ピッチ差とボルトのすきまから、平行移動で組み付けられる範囲を比較します。
ΔP=|PA−PB|+tA+tB; c=(DA−d)/2+(DB−d)/2+(LB−DB)/2 [slot only]; assemble if ΔP/2≤c.
同じ直線上の2穴だけを持つ2部品で、2本のボルトが両部品の穴の中で自由に動ける1次元モデルです。部品全体をピッチ方向に平行移動して差を2穴へ等分します。片側がタップ穴・固定ピン・位置決め済みの条件には使えません。穴径は最小、ボルト径は最大、長穴はピッチ方向の最小全長を入れます。ゼロ余裕は接触限界で、実用的な組付け余裕を意味しません。直角方向の位置ずれ、3穴以上、回転、同軸度・姿勢・位置度などの幾何公差を一括評価しません。
Compare two-part pitch mismatch with available bolt clearance under optimal translation along the row.
ΔP=|PA−PB|+tA+tB; c=(DA−d)/2+(DB−d)/2+(LB−DB)/2 [slot only]; assemble if ΔP/2≤c.
One-dimensional model of two collinear holes per part with both bolts free to float in holes in both parts. Optimal translation along the row splits pitch mismatch equally between the pairs. Not applicable to tapped holes, fixed dowels or an already located part. Use minimum hole diameters/slot overall length and maximum bolt diameter. Zero clearance is a contact boundary, not practical assembly margin. Transverse errors, three or more holes, rotation and full geometric-tolerance analysis are excluded.
図で条件を整理してから計算し、最後に実際の部品仕様を確認します。
Understand conditions with diagrams, calculate, then verify actual specifications.
説明用の別モデルです。適用条件を確認してください。数値は自動転記しません。
A separate explanatory model. Check its assumptions; values are not transferred.
