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Tegara Ball Bearing Collet Nut
- Internal ball bearing tapered raceway eliminates twisting where the collet and nut makes contact, resulting in a smooth and stable collapse of the collet around the cutting tool thus improving overall runout and clamping force
- Ball bearing is made from Taiwan and the collet nut is balanced to 12,000 RPM
- Made from alloy steel hardened to 55-56 HRC
- Internal thread and taper are precision ground
- Compatible with most standard ER tool holder and ER collets regardless of the brand
- Compatible with ER nose style collet wrench
High Speed Pre-Balanced
Design to minimize out-of-balance compare to the standard off-center o-ring design from other standard ER collet nut, achieving 12,000 RPM without needed to drill holes on the collet nut body when place on a dynamic balanced machine to preserve ER collet nut's body strength.
CLAMPING TORQUE
Mike
Reviewed in the United States on September 16, 2024
A worthwhile upgrade from the stock ER32 nut. Greater clamping power with less effort due to the bearings. Awin win in my books.
Research
Reviewed in the United States on December 2, 2024
People who purchase this need to know; standard ER32 collet chuck wrenches won’t work with this and it doesn’t come with a wrench which will. Out of the box, it’s pretty much useless.
Eli Winterburn
Reviewed in the United States on November 7, 2024
Works great
Eric
Reviewed in the United States on November 28, 2024
This is the nut I've been looking for! I tried balancing the other ER20 collet nuts too no avail! This collet nut fits my 2.2kw spindle perfectly. My spindle vibration at 12k rotation speed is gone. With a little finessing of my cheap collet, I can get zero runout on a ground 1/4" pin in a 1/4 inch collet. That works for me just fine. Thank you for a quality product!
Joseph Azzato
Reviewed in the United States on October 14, 2024
these are very accurate, any one trying to get as accurate precision Collet system this is it!I bought a set of Ericksons Collets for my ER20 Spindle but this is the best most accurate Collet nut I could find along with being a bearing type! will be buying more in the future as well
BobsMyUncle
Reviewed in the United States on October 23, 2023
Seems nice but haven't used it yet. Be aware that If you buy this you'll need a special wrench. Ordinary adjustable wrenches won't work, and neither will typical spanner wrenches that typically have 3-4 tangs. This one will only accept a single-tang tool.
David
Reviewed in the United States on September 6, 2022
I bought this hoping to fix runout on a cheap set of collets. Well, nope. But it did make the runout consistent for each collet. With the old nut I could get different runout by simply lossening and retightening. This one is smooth and I really like it. Another review said it was a 4 slot nut but mine is the standard 6 slot.
Customer
Reviewed in the United States on September 22, 2020
Given the price, my expectations were not high... I was initially pleasantly surprised by the fit and finish. After using it a few times and getting excellent concentricity, curiosity got the better of me and I disassembled it to check out the bearings and see if there was any indication of wear. Disassembly is pretty simple - remove the sealant from the small grub screw on the side, remove the screw, and then rotate the inner part of the assembly to remove the balls one-by-one. There are approximately 30 balls (didn't count them, sorry), and the handful that I mic'd were all on the same tenth. The bearing races were ground to an impressive finish, and showed no signs of contamination or uneven wear. Speaking of contamination - I was shocked to find an o-ring on the inner side of the bearing to prevent the grease from being washed out when using through-coolant.This seems to be the real deal, even if the price is a fraction of what a big-name ball bearing nut would cost.
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