Standard No.:	JB/T 7754-2007
English Name:	Rolling bearings--Double row full complement cylindrical roller bearing track rollers
Chinese Name:	滚动轴承 双列满装圆柱滚子滚轮轴承
Chinese Classification:	J11    Rolling bearing
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	21.100.20 21.100.20    Rolling bearings 21.100.20
Issued by:	NDRC
Issued on:	2007-03-06
Implemented on:	2007-9-1
Status:	valid
Superseding:	JB/T 7754-1995 Rolling Bearings - Double Row Full Complement Cylindrical Roller Bearing Track Rollers
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	214.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the structural types, boundary dimensions, technical requirements, measurement methods, inspection rules, marking, rust prevention and packaging of loose rib and stud-type double row full complement cylindrical roller bearing track rollers (hereinafter referred to as “bearings”). This standard is applicable to production, inspection and customer acceptance of finished bearings. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated references, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 197-2003 General Purpose Metric Screw Threads-Tolerances (ISO 965-1: 1998, MOD) GB/T 272-1993 Rolling Bearing-Identification Code GB/T 307.2-2005 Rolling Bearings - Measuring and Gauging Principles and Methods (ISO 1132-2: 2001, Rolling Bearings-Tolerances-Part 1: Measuring and Gauging Principles and Methods, MOD) GB/T 3203-1992 Specification for Carburizing Steels of Bearings GB/T 3098.1-2000 Mechanical Properties of Fasteners-Bolts, Screws and Studs (idt ISO 898-1: 1999) GB/T 4199-2003 Rolling Bearings-Tolerances-Definitions (ISO 1132-1: 2000, Rolling bearings-Tolerances-Part 1: Terms and definitions, MOD) GB/T 4604-2006 Rolling Bearings - Radial Internal Clearance (ISO 5753:1991, MOD) GB/T 6930-2002 Rolling Bearings - Vocabulary (ISO 5593: 1997, IDT) GB/T 7811-1999 Rolling Bearings-Symbols for Quantities GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging GB/T 18254-2002 High-carbon Chromium Bearing Steel JB/T 1255-2001 Specification for Heat-treatment of Rolling Bearing Parts Made from High Carbon Chromium Steel JB/T 2974-2004 Rolling Bearings-Identification Code - Supplemental Regulations JB/T 3573-2004 Rolling Bearings-Methods for the Measurement of Radial Internal Clearance JB/T 3574-1997 Rolling Bearings-Marking for Products JB/T 6641-2007 Rolling Bearings-Residual Magnetism and Its Assessment Method JB/T 7051-2006 Rolling Bearing Parts-Methods for the Measurement and Assessment of Surface Roughness JB/T 8881-2001 Specifications for Carburizing Heat Treatment of Rolling Bearing Parts JB/T 8921-1999 Rolling Bearings and Commercial Parts-Inspection Rules

Contents Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbols 5 Designation Methods 6 Structural Types 7 Boundary Dimensions 8 Technical Requirements 9 Measurement Methods 10 Inspection Rules 11 Marking, Rust Prevention and Packaging Figure 1 NUTR Type Figure 2 NUKR Type Table 1 Loose Rib Track Roller Bearings (Light Series) Table 2 Loose Rib Track Roller Bearings (Heavy Series) Table 3 Stud-type Track Roller Bearings Table 4 Inner Ring Table 5 Outer Ring Table 6 Tolerances of Stud Diameter and Length Table 7 Outer Ring Surface Roughness Table 8 Surface Roughness of Stud