GB/T 3478.7-2008

Active

Straight cylindrical involute splines - Metric module, side fit - Part 7: 37.5°pressure angle M and W values

圆柱直齿渐开线花键（米制模数齿侧配合) 第7部分：37.5°压力角M值和W值

Standard Type

GBT

ICS

21.120.30

CCS

J18

Status

Active

Issue Date

2008-09-27

Implementation

2009-05-01

Centralized Committee

国家标准委

Issuing Authority

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the M (measurement over pins) and W (measurement over teeth) values for straight cylindrical involute splines with a 37.5° pressure angle and metric module, used for side fit applications. It is applied in mechanical engineering for the design, manufacturing, and inspection of spline connections in automotive transmissions, machine tools, and industrial gearboxes to ensure precise dimensional control and interchangeability. The standard provides critical reference data for quality assurance and tolerance verification during production and assembly.

Related Standards

GB/T 12217-2005 Machines-Shaft heights GB/T 1569-2005 Cylindrical shaft ends GB/T 1570-2005 conical shaft ends GB/T 10081-2005 Straight-sided internal splines Length series GB/T 1563-2003 Taper keys--Cross section dimensions of keyways GB/T 10043-2003 Clutch--Classification GB/T 10042-2003 Clutch--Terminology GB/T 1567-2003 Square and rectangular thin keys

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.