What’s on the Selecting a Fit poster?

6 numbered steps. Function first, then class, then grade, then the worst cases. Say what the joint must do — Rotate, slide, locate accurately, or transmit torque by…; Pick the fit class — Clearance to move, transition to locate, interference to grip.; Work on hole basis — Make the hole with a standard reamer, then adjust the shaft.; Choose the IT grades — H7/g6 is the workhorse. Each tighter grade multiplies cost.; Check both extremes — Worst-case clearance and worst-case interference, not just nomi…; Check the assembly method — Interference fits need press force, or heating and cooling.. Temperature, surface finish and roundness all shift a real fit. Educational reference; standards govern.

Who is the Selecting a Fit poster for?

Selecting a Fit belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning machine design can pin it up — a beginner, a student mid-course, or someone revising years later.

When should you use the Selecting a Fit poster?

Whenever two parts must locate, slide or grip each other without a fastener. A wall chart earns its place by being glanceable from where the work is happening, so Selecting a Fit belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.

What other posters go with Selecting a Fit?

Bearing Life, Choosing a Bearing and Belt or Chain? sit alongside Selecting a Fit in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.

Is the Selecting a Fit poster free to download and print?

Yes. Selecting a Fit downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.

What size does the Selecting a Fit poster print at?

Selecting a Fit is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Selecting a Fit loses nothing.

Selecting a Fit — free printable poster

Selecting a Fit — printable engineering wall chart from LearnPosters. Free vector PDF, US Letter and A4.

Selecting a Fit, step by step

Function first, then class, then grade, then the worst cases.

Say what the joint must doRotate, slide, locate accurately, or transmit torque by grip.
Pick the fit classClearance to move, transition to locate, interference to grip.
Work on hole basisMake the hole with a standard reamer, then adjust the shaft.
Choose the IT gradesH7/g6 is the workhorse. Each tighter grade multiplies cost.
Check both extremesWorst-case clearance and worst-case interference, not just nominal.
Check the assembly methodInterference fits need press force, or heating and cooling.

Temperature, surface finish and roundness all shift a real fit. Educational reference; standards govern.

Questions about the Selecting a Fit poster

What’s on the Selecting a Fit poster?: 6 numbered steps. Function first, then class, then grade, then the worst cases. Say what the joint must do — Rotate, slide, locate accurately, or transmit torque by…; Pick the fit class — Clearance to move, transition to locate, interference to grip.; Work on hole basis — Make the hole with a standard reamer, then adjust the shaft.; Choose the IT grades — H7/g6 is the workhorse. Each tighter grade multiplies cost.; Check both extremes — Worst-case clearance and worst-case interference, not just nomi…; Check the assembly method — Interference fits need press force, or heating and cooling.. Temperature, surface finish and roundness all shift a real fit. Educational reference; standards govern.
Who is the Selecting a Fit poster for?: Selecting a Fit belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning machine design can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Selecting a Fit poster?: Whenever two parts must locate, slide or grip each other without a fastener. A wall chart earns its place by being glanceable from where the work is happening, so Selecting a Fit belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
What other posters go with Selecting a Fit?: Bearing Life, Choosing a Bearing and Belt or Chain? sit alongside Selecting a Fit in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Bearing Life Choosing a Bearing Belt or Chain?
Is the Selecting a Fit poster free to download and print?: Yes. Selecting a Fit downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Selecting a Fit poster print at?: Selecting a Fit is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Selecting a Fit loses nothing.Printing guide

Selecting a Fit, step by step

Questions about the Selecting a Fit poster

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