GB/T 6445-2021

Active

Rolling bearings—Needle roller bearing track rollers—Boundary dimensions, geometrical product specifications (GPS) and tolerance values

滚动轴承滚轮滚针轴承外形尺寸、产品几何技术规范（GPS）和公差值

Standard Type

GBT

ICS

21.100.20

CCS

J 11

Status

Active

Issue Date

2021-12-31

Implementation

2022-07-01

Centralized Committee

中国机械工业联合会

Issuing Authority

国家市场监督管理总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the boundary dimensions, geometrical product specifications (GPS), and tolerance values for needle roller bearing track rollers. It is applied in the design, manufacturing, and quality inspection of rolling bearings used in mechanical systems, such as linear motion guides, cam followers, and conveyor systems. The standard ensures interchangeability and consistent performance of these components across industrial machinery and automotive applications.

Related Standards

JB/T 51110-1999 Internal Combustion Engines - Cylinder Head Gaskets - Product Quality Grading (Internal Use) JB/T 51134-1999 Product quality grading of agricultural deep groove ball bearing GB/T 5868-2003 Rolling bearings--Mounting dimensions GB/T 4605-2003 Rolling bearings--Thrust needle roller and cage assemblies，thrust washers GB/T 4199-2003 Rolling bearings--Tolerances--Definitions GB/T 307.2-2005 Rolling bearings-Measuring and gauging principles and methods GB/T 307.3-2005 Rolling bearings-General technical regulations GB/T 307.1-2005 Rolling bearings-Radial bearings-Tolerances

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.