Source for good quality ER11 collets

[MadHatter]

@TDA

Hopefully that’s helpful and doesn’t come off as “marketing”, advertising, or defensive.

I’m pretty sensitive to people pretending to not be marketing their products, while doing that exact thing, and I did not get that feeling from reading your post. It was good info as far as I am concerned.

[LiamN (Liam Newcombe)]

Agreed,

Even if one did read it as marketing, it’s informative and helpful so valuable anyway.

[gmack (Gerald Mackelburg)]

@TDA

Short version:
Anytime you see someone list a balance spec of GX at/for X RPM this is a ISO 1940-1 spec. It doesn’t mean that it’s only balanced for use up to that specific RPM. Balanced to 100KRPM with no other spec means functionally nothing. EVERYTHING can be called balanced to a million RPM at some absurd error level. Well, assuming it stays in one piece I guess…

I guess I assumed that manufacturers of pro quality tooling like Rego Fix and Techniks would use some standard (like ISO 1940-1?) for their balance ratings, but I couldn’t find that so I’ll ask them; particularly about this beauty from Rego Fix.

[gmack (Gerald Mackelburg)]

@TDA

Not to be pedantic but runout is specifically a rotational error. So you can’t get it from mounting issues. You can get other errors from mounting like movement, orthogonality, etc.

I assumed that the OP, like most, would try to measure runout from the spoil-board. The measurement error caused by imperfections in the spindle mounting and spoil-board could greatly exceed any spindle/collet runout. That’s what I was attempting to express in my post.

@TDA

I only know of 3 companies that measure the actual collets that you receive Us, Techniks’ UP grade, and REGO-FIX. There are probably more but those are the ones I’m aware of. To make it extra fun we all use different measurement standards.

Rego Fix uses a DIN standard (note the clamping ranges), I suspect that Techniks does too, but I’ll ask them.

[Moded1952 (Lucas)]

@jwr

As a European, I tend to get annoyed whenever I encounter imperial units, but I have to admit that it’s much nicer to have one 1/8" collet and one 1/4" collet rather than the entire metric collection of 14 collets.

I’m also living in Europe and I rarely need anything other than 3mm and 6mm, 4 and 5mm seem pretty rare to me…

And back on topic, don’t know about the US but in Switzerland, I usually buy my ER-11 collets from:

• SFS high-precision (metric-only)
• SFS low-precision (metric, Imperial-compatible)

I’ve also bought some from Sorotec (metric, Imperial-compatible) and CNCFraises (1/8" and the rest metric for some reason).

And REGO-FIX can be bought here but I haven’t tried these yet. Really should though…

[TDA (John Torrez)]

@MadHatter

I’m pretty sensitive to people pretending to not be marketing their products, while doing that exact thing, and I did not get that feeling from reading your post. It was good info as far as I am concerned.

@LiamN

Agreed,

Even if one did read it as marketing, it’s informative and helpful so valuable anyway.

Appreciate the feedback from you both. My goal in this is to provide good information.

@gmack

I guess I assumed that manufacturers of pro quality tooling like Rego Fix and Techniks would use some standard (like ISO 1940-1?) for their balance ratings, but I couldn’t find that so I’ll ask them; particularly about this beauty from Rego Fix.

I’m sure they do have a standard or they wouldn’t have the reputation that they do. It just frustrating that it’s not listed. The way I see this is that they are picking a standard and putting their name behind it that the one they have picked is universally good for that RPM.

To expand a little on the 1940-1. It actually a rotor balancing standard (title is Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state). It has been used for pretty much anything that can be rotationally balanced.

A lot of manufacturers have started moving away from it to 16084. This allows for multi component accepted unbalance. Which is fine but requires a lot more information about all the pieces in the system, spindle, and tooling.

@gmack

Rego Fix uses a DIN standard (note the clamping ranges), I suspect that Techniks does too, but I’ll ask them.

Not sure as I’ve never seen it. Might want to check if SYIC list one, as if memory serves, Techniks is SYIC’s US distributor.