screw for THK HSR15 LM blocks?

[slp_prlzys]

Hi,
I'd like to know the thread size of screw for the mention blocks
if any1 has any info. I've been looking the HSR specsheet but
couldn't find anything bout screw size for the block, but I did
find the size for the rail, my rails are not tapped tho.

The story:
Last year, 'bout Sept., a friend gave me 4 thk rails (I think
it came from a pick n place machine as he works in electronics mfg.)
They're 30" long it only has 2 bearings type HSR-A.
Three weeks ago I won an ebay auction for three 8 1/2" rails with
two bearings each, and four 6 1/4 rails with one bearing each.
They are actually on separate auctions I happened to win on both.
Total cost $72US. I took a chance the bearings on my rails has wings on it
(type HSR-A as I found out now), but the ones I won doesn't have wings
type HSR-R).They came yesterday, and boy was I glad they fit the 30" rails
perfectly. Woohoo!! I now have complete set of rails for X,Y,Z axis. I just hope I could build something that's useable
Patience and a bit of luck does helps.

[PEU]

My SHS15 blocks, I have 2 types, are M4 and M5, Im almost sure yours are the same thread.


Pablo

[slp_prlzys]

Would that be metric?
I attached the pictures,
if the descriptions are not enough

[PEU]

I have the same kind of blocks, the wider ones are Metric 5, and the others are Metric 4.


Pablo

[slp_prlzys]

Thanks, I ask yesterday for screws
they cost $0.54CAD a piece for 3/4" 8-36,
I thought would fit, but didn't. The places I went to doesn't
carry metric screws.

[PEU]

Here you have the complete specs of the HSR line:

http://www.thk.com/archive_file/tech...n/A262-287.pdf


Pablo

[slp_prlzys]

That's the exact specsheet I got
from the same site, but I only found
sizes for tapped rails, but none on
the blocks. I may have missed it.
But I do think you were right that
it has the same screw sizes as yours,
as I found out that the SHS's type has
caged balls while the HSR's are not.

thanks again.


EDIT: I found it, it's on page A282.
I still don't know what it meant tho
it says M4x5, is it size/type?

EDIT2:
google got me this:
"A metric screw thread is specified by how far, in millimeters it advances in one turn of the screw. For example, if one turn of a filter brings it 1 mm closer to the lens then it is called "M1.0". It is the distance from one peak of the thread to the next one. This number is referred to as "The Pitch" "
(it's about camera lens thread tho)