select
navigate
switch tabs
Esc close

OD and ID vs OD and Wall Thickness - which is the best method of dimensioning?

0
1

Hello All, 

I am designing a conical-shaped plastic bushing and am confused if specifying the OD and the wall thickness is better for controlling the manufacturing process, or OD and ID separately, with their tolerance ranges individually specified?

    • Hello All, 

      I am designing a conical-shaped plastic bushing and am confused if specifying the OD and the wall thickness is better for controlling the manufacturing process, or OD and ID separately, with their tolerance ranges individually specified?

      0
    • Xometry Engineer

      Hi! This sounds like it’s potentially a sleeve bushing/bearing. You should always dimension to its function. In this case, the OD is important because I’m sure it’s going into something. The ID is also important because there is likely a rod or shaft location. The hole for the rod and the outer diameter for the fit are independent, and need independent dimensions. Dimensioning the wall thickness may not convey the design intent to the manufacturer. Things that may be important other than the diameters are concentricity GD&T callouts.

      0
      Reply
OD and ID vs OD and Wall Thickness – which is the best method of dimensioning?
Your information:




Suggested Topics

Topic
Replies
Views
Activity
Best way to mount NEMA 17 motor on 2 mm aluminum base?
I'm working on a compact test rig where I need to mount a NEMA 17 stepper motor onto a 2 mm thick aluminum sheet (EN AW-5754). The base has to stay as light as possible,... read more
T
r
1
31
May 28
Sheet metal hem
Hello, I'm trying to create a hem on the edge of steel sheets between 200mm and 400mm long. I can't find any manufacturer in France who can perform such bending/rolling/shaping with a radius of... read more
s
P
1
40
May 23
Mesh accuracy concerns with FDM
I'm working on a small gear-driven mechanism for a camera panning rig and considering printing the 45° bevel gears in PETG (FDM). Tooth pitch is 1.5 mm, and the gears will be rotating slowly... read more
M
n
3
121
Apr 29
Metal 3D printing for watertight watch cases
Hi! I'm prototyping a watch case and considering metal laser sintering (DMLS or SLM) due to cost constraints—CNC machining is out of budget. My main concern is whether an as-printed sintered metal part will... read more
H
R
2
200
Mar 25
99 model kia sephia kontak termiği yapabilir misiniz
99 model kia sephia kontak termiği yapabilir misiniz kontak anahtarının girdiği yerde 3 tane kırık var onun için anahtarı tam olarak kavramıyor ve motoru çalıştırmıyor bu kırığın yapılması gerekiyor veya değişmesi gerekiyor fakat piyasa... read more
S
1
150
Mar 19