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GB/T 40310.2-2021Ball splines - Part 2: Dynamic and static load ratings and rating life (English PDF)

滚动花键副第2部分：动态和静态额定载荷和额定寿命

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

May 21, 2021

Implementation date

December 1, 2021

Scope

GB/T 40310.2-2021 is the English-translated version of 滚动花键副第2部分：动态和静态额定载荷和额定寿命.

GB/T 40310.2-2021 is the Chinese standard "Ball splines - Part 2: Dynamic and static load ratings and rating life".

Its scope clause reads: This part of GB/T 40310 specifies the basic dynamic load rating and basic static load rating of Type AI, Type AII and Type R rolling spline pairs Calculation of load, calculation of basic rated life, and calculation of basic rated dynamic and static torque of AI and AII rolling spline pairs.

This section is used under the following preconditions. ---The ball and raceway are elastically deformed; ---The hardness of the raceway is greater than 58HRC; ---The steel used for the rolling spline pair is bearing steel or other similar alloy steel; --- Use proper lubrication.

This section applies to rolling spline pairs. Its clauses include terms and definitions.

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Document preview — GB/T 40310.2-2021

National Standard of the People's Republic of China

Classification: J 51

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbol
5 Type AI, Type AII (angle type)
5.1 Overview
5.2 Basic dynamic load rating
5.3 Basic static load rating
5.4 Basic dynamic torque rating
5.5 Basic static torque rating
6 R type (radial type)
6.1 Overview
6.2 Basic dynamic load rating
6.3 Basic static load rating
7 Basic rating life

1 Scope

This part of GB/T 40310 specifies the basic dynamic load rating and basic static load rating of Type AI, Type AII and Type R rolling spline pairs

Calculation of load, calculation of basic rated life, and calculation of basic rated dynamic and static torque of AI and AII rolling spline pairs.

This section is used under the following preconditions.

---The ball and raceway are elastically deformed;

---The hardness of the raceway is greater than 58HRC;

---The steel used for the rolling spline pair is bearing steel or other similar alloy steel;

--- Use proper lubrication.

This section applies to rolling spline pairs.

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 reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 40310.1-2021 Rolling spline pair Part 1.General characteristics and requirements (ISO 23848-1.2009, MOD)

3 Terms and definitions

The following terms and definitions defined in GB/T 40310.1-2021 apply to this document.

3.1 Basic dynamic load rating

The constant radial load that the rolling spline pair can withstand theoretically under the condition of a basic rating life of 50km.

3.2 Basic dynamic torque rating

CT The constant torque that the rolling spline pair can withstand theoretically under the condition of a basic rating life of 50km.

3.3 Basic rating life

L10

A set of rolling spline pairs operating under the same conditions can achieve the specified life when the probability of no fatigue is 90%.

3.4 Basic static load rating

The static radial load corresponding to the calculated Hertzian contact stress at the center of the contact surface at the maximum ball load position is shown in Table 1.

GB/T 17587.3 | JB/T 12396 | GB/T 29001.5 | GB/T 17587.2 | GB/T 39829 | GB/T 40310.1 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 40310.1-2021Ball splines - Part 1: General characteristics and requirements

ISO 23848

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