Recommended tightening torque for ER and MR clamping nuts Maximum torques for retention knobs (Nm)

Product catalog summary

Overview: This document provides detailed specifications and recommendations for tightening torques of ER and MR clamping nuts, as well as maximum torques for retention knobs. It includes both metric (Nm) and imperial (ft-lbs) measurements.

Specifications:

ER Clamping Nuts: The document lists torque values for various ER clamping nut types (ER, ERB, ERM, ERMX, ERAX, ER MS) across different collet sizes, ranging from ER 8 to ER 50. Torque values are provided in both Nm and ft-lbs.
MR Clamping Nuts: Similar torque specifications are provided for MR clamping nuts (MR, MRC, MRM, MRMC) for collet sizes MR 11 to MR 32.

Procedures:

It is recommended to use a TORCO-BLOCK or torque wrench for tightening clamping nuts to ensure accuracy and prevent damage.

Standards and Recommendations:

Steep Taper Maximum Tightening Torque: Specific maximum torque values are provided for SK, BT, CAT 30, 40, and 50 tapers, with a warning that exceeding these values can lead to deformation and poor runout.
Original REGO-FIX accessories are recommended for optimal performance.

Expert Advice: The document emphasizes the importance of adhering to recommended torque values to avoid deformation and ensure proper tool performance.

Catalog excerpts

Recommended tightening torque for ER and MR clamping nuts Maximum torques for retention knobs (Nm)-1

Recommended tightening torque for ER and MR clamping nuts Maximum torques for retention knobs (Nm) Hi-Q® ER clamping nuts / ER / ERC *Includes ER standard and ER-UP micRun® clamping nuts MR / MRC Collet size Steep taper maximum tightening torque Expert advice

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Recommended tightening torque for ER and MR clamping nuts Maximum torques for retention knobs (Nm)-2

Recommended tightening torque for ER and MR clamping nuts Maximum torques for retention knobs (ft-lbs) Hi-Q® / ER clamping nuts ER / ERC Collets [ft-lbs] Collet size Collets [ft-lbs] *Includes ER standard and ER-UP micRun® clamping nuts MR / MRC Steep taper maximum tightening torque MRM / MRMC micRun® collets Collet size

Open the catalog to page 2