GB/T 17477-2012Automotive gear lubricant viscosity classification (English PDF)

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard replaced GB/T 17477-1998 Axle and Manual Transmission Lubricant

Viscosity Classification. Compared with GB/T 17477-1998, this Standard has the major

changes as follows.

--- The standard name was changed from "Axle and Manual Transmission Lubricant

Viscosity Classification" to "Automotive Gear Lubricant Viscosity Classification";

keep consistent with the standard name of reference standard SAE J306-2005

Automotive Gear Lubricant Viscosity Classification.

--- Add "NB/SH/T 0845 Determination of Viscosity Shear Stability of Transmission

Lubricants Using the Tapered Roller Bearing Rig" (see Clause 2);

--- Increase four viscosity grades of 80, 85, 110 and 190 (see Table 1 in Clause 4 of

this Edition; Table 1 of Clause 4 of 1998 Edition);

--- Add footnote c "after the test of NB/SH/T 0845 (20h), it shall also meet the limit

requirements" (see Table 1 of Clause 4);

--- Replace the connection symbol of the multi-level oil of "/" by "-" (see 3.2.2);

--- Delete the Appendix A (prompt appendix) "Typical Gear Lubricant Low

Temperature Viscosity (Brookfield Viscosity) – Temperature Chart" (see

Appendix A of 1998 Edition).

This Standard was prepared on the reference of American Society of Automotive

Engineer SAE J306. 2005 Automotive Gear Lubricant Viscosity Classification (English

Version); its technical contents are consistent with SAE J306. 2005.

This Standard was proposed by National Technical Committee for Standardization of

Petroleum Products and Lubricants (SAC/TC 280).

This Standard shall be under the jurisdiction of Petroleum Fuels and Lubricants

Subcommittee of National Technical Committee for Standardization of Petroleum

Products and Lubricants (SAC/TC 280/SC 1).

Drafting organization of this Standard. Sinopec Research Institute of Petroleum

Processing.

Drafting staff of this Standard. Xu Shuyan.

This Standard was first-time published in August 1998.

Automotive Gear

Lubricant Viscosity Classification

1 Scope

This Standard specifies the viscosity grade, code instruction, detailed classification of

automotive gear lubricant.

This Standard is applicable to the viscosity classification and marking of automotive

gear lubricant.

The viscosity grades in the Table 1 only specify the classification limits for automotive

gear lubricants from the aspects of rheological properties, other lubricant

characteristics are not considered.

2 Normative References

The following documents are essential to the application of this document. For the

dated documents, only the versions with the dates indicated are applicable to this

document; for the undated documents, only the latest version (including all the

amendments) are applicable to this document.

GB/T 265 Petroleum Products - Determination of Kinematic Viscosity and

Calculation of Dynamic Viscosity

GB/T 11145 Standard Test Method for Measurement of Low-Temperature

Viscosity of Lubricants - Brookfield Viscometer Method

NB/SH/T 0845 Determination of Viscosity Shear Stability of Transmission

Lubricants Using the Tapered Roller Bearing Rig

3 Viscosity Grades and Code Instructions