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KMFE Lock Nut with Set Screw

KMFE / SKF (Official website) / Listed on page 21 of the document

Metric lock nut with set screw. Supports M20 to M200, with many part numbers.

Last verified: (date the content was verified against the source document)

KMFE Lock Nut with Set Screw on page 21 of SKF "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）"
Source: SKF「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）」page 21
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Specifications

Nominal thread size G M20x1~M200x3
Mass 0.031~3.3 kg
Recommended Tightening Torque 4~18 Nm

How to choose Lock nuts

Points to check when selecting, with the values for this product (KMFE Lock Nut with Set Screw).

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

    This product: Nominal thread size G M20x1~M200x3

    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

    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 nut with set screw, thread designation M20x1 to M200x3. Part numbers KMFE4 to KMFE40, with derivative products marked L or H. Secured with set screws M6 to M10.

Features

  • With set screw
  • Derivative products (L and H) available

Applications

  • Bearing fixing

FAQ

Q. Which thread sizes does the KMFE Lock Nut with Set Screw support?
A. It is a lock nut with set screw, thread designation M20x1 to M200x3. Part numbers are KMFE4 to KMFE40.
Q. How is the KMFE Lock Nut with Set Screw secured, and what is the recommended tightening torque?
A. It is secured with set screws M6 to M10. The recommended tightening torque is 4 to 18 Nm.
Q. What are the main applications of the KMFE Lock Nut with Set Screw, and what types of derivative products are available?
A. The main application is bearing fixing. Derivative products marked with L or H are available.
Q. What is the mass of the KMFE Lock Nut with Set Screw?
A. The mass is 0.031 to 3.3 kg.

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

Source documents

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