Quick Sleeve (Shaft Sleeve)

Specifications

How to choose Pins & Shafts

Points to check when selecting, with the values for this product (Quick Sleeve (Shaft Sleeve)).

1. 1. Select the outer diameter to match the mating hole

   The outer diameter is selected to suit the hole diameter of the mating part or the bore of a bearing. Listed products range from extra-fine 0.1 mm diameters to about 10 mm. Fine diameters bend easily, so the balance with load and length should also be checked. Compare the nominal diameter and the actual permissible range together with the diameter tolerance.

2. 2. Choose a diameter tolerance suited to the fit

   Tolerance symbols such as h7, g6 and m6 determine the range within which the outer diameter falls relative to the basic dimension. For press-fit fixing, choose a tighter interference fit such as m6; for sliding or rotation, choose a clearance fit such as g6 or h7. Combine these with the tolerance of the mating hole.

3. 3. Determine the required overall length and whether long lengths are available

   Overall length is determined from the hole depth of the mounting area and the support span. Listed products range from 2 mm to 150 mm, and long lengths may be offered as a separate series. The longer the part, the more deflection and straightness effects tend to appear, so consider a larger diameter or additional support points.

4. 4. Select a material suited to the operating environment

   This product: Material SUS304

   Stainless steels such as SUS304 and SUS303 resist rust and suit humid or washed environments. SUS303 is a steel grade with improved machinability. Where wear or high load is a concern, select hardenable steels or products with higher hardness.

5. 5. Check hardness and surface treatment of sliding areas

   Where the shaft rubs against a bearing or seal, surface hardness affects wear life. Some products have surfaces hardened by hard chrome plating or quenching, and repair sleeves for oil seal areas are available with hard chrome plating for high hardness. Also confirm whether the plating thickness is included in the stated dimensions.

6. 6. Check whether the end shape allows easy insertion

   Chamfered or rounded ends make insertion into holes easier and help prevent damage to the mating bore. Parallel pins may be classified by end shape, such as Type A and Type B, so select according to the assembly method and whether press-fitting is required.

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

About Pins & Shafts and all products

Description

Made of SUS304 with an ultra-thin wall of 0.3 t. The outer surface has a hard chrome plating finish for high hardness and corrosion resistance. Available in many sizes for shaft diameters from 18 mm to 200 mm, with same-day shipping support.

FAQ

Q. How can the Quick Sleeve (Shaft Sleeve) be used to repair a worn shaft?

A. It is a stainless steel sleeve that covers grooves worn into shafts by oil seals, allowing repair without re-machining the shaft. Its key feature is that it repairs the shaft without machining it.

Q. What shaft diameters does the Quick Sleeve (Shaft Sleeve) support, and can existing oil seals still be used?

A. It is applicable to shaft diameters of 18 to 200 mm. Due to its ultra-thin wall design, existing oil seal sizes can be used as is.

Q. What are the material, wall thickness, and surface treatment of the Quick Sleeve (Shaft Sleeve)?

A. The material is SUS304 and the wall thickness t is 0.3 mm. The outer surface has a hard chrome plating finish, providing a hardness of HV1200 and corrosion resistance.

Q. Is a dedicated tool required to install the Quick Sleeve (Shaft Sleeve)?

A. A dedicated installation jig is included.

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

Source documents

• Catalog スプリングネット 製品カタログ（ページ抜粋） 43 pages Open page 16
  Found on: https://www.samini.co.jp/catalog_list/