Lock Nut (HM(E)・N・KM(L)・AN Series)

Specifications

How to choose Lock nuts

Points to check when selecting, with the values for this product (Lock Nut (HM(E)・N・KM(L)・AN Series)).

1. 1. Select the size and standard to match the shaft thread

   The nut must fully match the thread of the shaft or sleeve. Metric fine pitch such as M10×0.75, trapezoidal threads such as Tr220×4, and inch series (ANSI/ABMA) are all listed, so verify the nominal diameter, pitch, and thread standard against the drawing.

2. 2. Do not confuse thread standard series

   Metric KM and HM series and inch N and AN series may look similar but are not interchangeable. Some larger sizes in certain series use trapezoidal threads, so confirm the original standard when repairing existing equipment.

3. 3. Decide the anti-rotation method

   Methods using lock washers, fixing clips, or locking plates require a keyway on the shaft. Integrated types that rotate-lock with set screws or locking pins do not require a keyway and allow quick installation. Also confirm whether accessories are required.

4. 4. Verify axial load capacity

   Nuts receive thrust loads and pressing force during tightening. Listed axial load capacities range widely from 20 to 1340 kN, so confirm sufficient margin against the axial load on the bearing and the force required to press onto a tapered shaft.

5. 5. Check side face runout for precision applications

   This product: Side reference face axial runout Max 0,06 ~ 0,16 mm

   In applications such as main spindles with high rotational speed and accuracy, if the nut side face runs out relative to the thread, the bearing tilts and rotational accuracy decreases. Select a precision lock nut and check the axial runout value of the reference side face.

6. 6. Check outer diameter and width for clearance

   Confirm that the nut outer diameter does not interfere with housings or seals, and that the width fits within the thread length of the shaft. Also confirm the applicable spanner number used for tightening and the recommended tightening torque.

This guide was written by AI based on the listed products' documents and specification items.

About Lock nuts and all products

Description

Lock nuts with dimensions conforming to ISO and ANSI standards, including trapezoidal thread type (HM) and lightweight series (HML, N 0), among others. When installing, retaining clips and similar components must be replaced with new ones each time.

FAQ

Q. Which standard do the dimensions of the Lock Nut (HM(E)・N・KM(L)・AN Series) conform to?

A. The dimensions conform to ISO 2982-2 and ANSI/ABMA Standard 8.2.

Q. Can the retaining clip be reused when installing the Lock Nut (HM(E)・N・KM(L)・AN Series)?

A. No. When installing, retaining clips and similar components must be replaced with new ones each time.

Q. What applications can the Lock Nut (HM(E)・N・KM(L)・AN Series) be used for?

A. It is used for bearing fixing and bearing mounting in general machinery. It is used in combination with lock washers, retaining clips, and retaining plates.

Q. What types of Lock Nut (HM(E)・N・KM(L)・AN Series) are available?

A. Types include trapezoidal thread type (HM) and lightweight series (HML, N 0), among others. They are standard lock nuts in metric and inch systems.

Q. What is the axial runout of the reference side face of the Lock Nut (HM(E)・N・KM(L)・AN Series)?

A. The maximum axial runout of the reference side face is 0,06 to 0,16 mm.

Written by AI based on the content of the source documents.

Source documents

• Catalog 軸受付属品（アダプタスリーブ・取り外しスリーブ・ロックナット） 74 pages
  Found on: https://azuma-eg.com/catalogue/