GB/T 39545.3-2020Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits (English PDF)

1 Scope

This part of GB/T 39545 specifies the keyless connection of the shaft and hub of the closed gear transmission (hereinafter referred to as the interference connection)

Terms and definitions, symbols, calculation basis and design considerations, design and verification of interference connections, general requirements for longitudinal interference connections, liquid

Hub configuration for pressure installation or removal, hydraulic installation and removal equipment, inspection, installation, fixing and removal of conical hole hubs, cylindrical hole hubs

Inspection, installation and removal:

This section applies to general industrial closed gears in the form of spur gears, helical gears, herringbone gears, bevel gears and worms made of metal materials:

The interference connection between the shaft and the hub when the transmission device adopts a conical hole and a cylindrical hole is not suitable for the shaft with keyway, spline, non-integral hub or

Connection of polygonal hole hub:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article

Pieces: For undated references, the latest version (including all amendments) applies to this document:

GB/T 1800:1 Product Geometric Technical Specification (GPS) Linear Dimension Tolerance ISO Code System Part 1: Tolerances, Deviations and Matching

The basis of integration (ISO 286-1:2010, MOD)

GB/T 1800:2 Product Geometric Technical Specification (GPS) Linear Dimensional Tolerance ISO Code System Part 2: Standard Tolerance Zone Code

No:, hole and shaft limit deviation table (ISO 286-2:2010, MOD)

GB/T 11334-2005 Product Geometrical Technical Specification (GPS) Cone Tolerance

GB/T 12360-2005 Product Geometrical Technical Specification (GPS) Cone Fit

3 Terms and definitions

The following terms and definitions apply to this document:

3:1

Juncturewithkeylessfits

Interference fit connection without keys:

3:2

Amount of interference

The difference between the outer diameter of the contained part and the inner diameter of the contained part at the matching diameter:

Note 1: The hub of this standard is a contained part, and the shaft is a contained part: In the following descriptions, the terms "hub" and "shaft" are generally used instead of "containment

Pieces" and "Included Pieces":

Note 2: Rewrite GB/T 5371-2004, definition 3:1:

3:3

Interferencejuncture

The connection method of the fixed structure formed by the shaft and the hub using the interference:

Note: Rewrite GB/T 5371-2004, definition 3:3: