ER Clamping Nuts Series ER20A Collet Nut

ER Clamping Nuts Series ER20A Collet Nut,The self-locking function of the barrel clamp ensures that the barrel clamp will not fall off during installation. Specially designed for high-speed machinery, good balance. The special anti-corrosion treatment reduces the friction between the clamp and the nut, greatly improves the clamping force, and has the ability to block pollutants.
1. Er Nut  Materials: 42Crmo; 20CrMnTi
2.Er Collet Nut Hardness: HRC50-53
3. ER20A Nut for Cnc Tool Holder Accuracy: A class (8 micron), AA class (5 micron)
4.Er Clamping Nut Model: A, M, UM/RD, KM/RD
5. Cryogenic treatment and thermal aging treatment are used in the process to improve the accuracy and dimensional stability.
6. Thread and 30 degree inclined surface are processed once. The tolerance grade of thread is 4H, and the accuracy is gradually tested.
7. Preset dynamic balance G2.50000/25000/30000 RPM;
8. Surface coating treatment, improve surface hardness, wear resistance, improve cleanliness, better rust and corrosion resistance, more stable accuracy, smoother surface, more comfortable feel, more beautiful appearance