Impact Spanner

Specifications

How to choose Spanners

Points to check when selecting, with the values for this product (Impact Spanner).

1. 1. Match the locknut number

   Hook spanners are supplied for each corresponding locknut number, such as HN 4 or HN 5, so the number determines compatibility. If the claw and nut groove dimensions do not match, the tool slips and can damage the nut or groove, so confirm that the locknut number to be used falls within the compatible range.

2. 2. Check the outer diameter range

   The outer diameter range of locknuts that a spanner can engage is set for each product, and listed products cover 16 to 210 mm. Adjustable types cover multiple outer diameters with one tool, but the range is limited, so check that all the nut outer diameters you have fall within it.

3. 3. Select the spanner type for the task

   For reliably gripping a specific size, the hook type is suitable; where sizes are mixed on site, the adjustable type is suitable; and where manual force is insufficient for large nuts, the impact type used with a hammer is suitable. If the nut has holes in its face, the pin type is required. Decide the type based on the nut shape and the work content.

4. 4. Check large units against outer diameter d and dimensions

   This product: 外径d 148～746 mm

   For large locknuts, the catalogue may indicate compatibility by the applicable outer diameter d, and listed products cover 148 to 746 mm. Surrounding space and the swing radius are also relevant, so check together with overall length L whether the tool fits in the work area.

5. 5. Control angle for tapered seat mounting

   When mounting self-aligning ball bearings and similar units on tapered shafts or adapter sleeves, controlling the push-in amount by tightening angle prevents over- or under-tightening. Sets with a protractor are intended for this application, and for sets supplied with a carrying case, also confirm the storage dimensions.

6. 6. Check handle material and identification

   In humid sites, corrosion-resistant materials such as resin handles are easier to handle. When holding many sizes, markings showing the model number or compatible range help prevent mix-ups. Check the body material and markings, including storage methods.

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

About Spanners and all products

Description

Covers the range from TMFN 23-30 to TMFN 600-750, including corresponding SKF locknuts, adapter sleeves and DIN 1804 nuts. Cannot be used for driving bearings onto tapered seats.

FAQ

Q. Which SKF locknuts and adapter sleeves are compatible with the TMFN series impact spanner by model number?

A. Corresponding SKF locknuts, adapter sleeves and DIN 1804 nuts are listed in the range from TMFN 23-30 to TMFN 600-750.

Q. What applications can the TMFN series impact spanner be used for?

A. It is used for tightening and removing large locknuts and for mounting bearings with adapter sleeves. It is used in combination with a hammer to apply impact.

Q. What is the outside diameter d range of the TMFN series impact spanner, and what operations can it not be used for?

A. The outside diameter d is 148 to 746 mm. It cannot be used for driving bearings onto tapered seats.

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

Source documents

• Catalog SKFメンテナンス製品と潤滑製品 204 pages Open page 18
  Found on: https://azuma-eg.com/catalogue/