- Joined
- May 16, 2016
- Messages
- 1,693
I'm trying to identify a spline on a shaft The OD is 28mm or 1.1", ID is 23mm or 0.906" with 6 splines. Spline width is 6.36mm or 0.25" it appears to be a bit of a mix between metric and imperial. Any ideas please.
First you must determine the tooth profile, straight, involute or other, this may be difficult.
The dimension data is readily available on the web, spline pitch diameters may be measured over wires as is done with threads and spur gears. MH has a few pages of data for measuring odd number tooth gears and splines over wires
I checked my mill/drill spindle and it is a 23 x 28 mm with 6.32mm at the root of the spline and 5.97mm at the O.D. I suspect that yours is a 23 x 28 x 6 mm.Thanks RJ, It looks like I may have a hybrid the ID and OD are standard metric sizes 23 and 28 mm but the tooth width is odd, should be 6mm but is 6.36 = 1/4"It's a milling machine spindle, and maybe they don't want anyone buying standard spline parts off the shelf from other suppliers. I'll talk to the machines agent here see what they can offer.
I checked my mill/drill spindle and it is a 23 x 28 mm with 6.32mm at the root of the spline and 5.97mm at the O.D. I suspect that yours is a 23 x 28 x 6 mm.