Standard No.:	JB/T 10857-2008
Chinese Name:	滚动轴承 农机用圆盘轴承
English Name:	Rolling bearings—Disc bearings for agricultural machinery
Professional Classification:	J11 Rolling bearing
Professional Classification:	JB Professional Standard - Machinery
ICS Classification:	21.100.20 Rolling bearings
Issued by:
Issued on:	2008-03-12
Implemented on:	2008-09-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:	8000 words
Price(USD):	240 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard specified the structural types, designation methods, boundary dimensions and technical conditions of disc bearings for agricultural machinery (hereinafter referred to as “bearings”).
This standard is applicable to production, inspection and customer’s type selection and acceptance of disc harrow (plough) bearings for agricultural machinery. Bearings of other types for agricultural machinery may also refer to this standard.

2 Normative References

The provisions of following documents are recognized as the provisions of this standard after quoting. All dated reference, subsequent amendments (excluding corrections), or revisions are not suitable for this. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents applies. For undated references, the latest edition of the normative document referred to applies.
GB/T 272-1993 Rolling Bearing-Identification Code
GB/T 276-1994 Rolling Bearings-Deep Groove Ball Bearings-Boundary Dimensions
GB/T 307.2-2005 Rolling Bearings-Measuring and Gauging Principles and Methods (ISO 1132-2: 2001, Rolling Bearings-Tolerances-Part 2: Measuring and Gauging Principles and Methods, MOD)
GB/T 708-2006 Dimension Shape Weight and Tolerance for Cold-rolled Steel Plates and Sheets
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 7324-1994 General Purpose Lithium Lubricating Grease
GB/T 7811-2007 Rolling Bearings-Symbols for Quantities (ISO 15241: 2001, IDT)
GB/T 8597-2003 Rolling Bearings-Rust Proof Packaging
GB/T 13237-1991 Cold-rolled Quality Carbon Structural Steel Sheets and Strips
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/T3574-1997 Rolling Bearings-Marking for Products
JB/T 6639-2004 Rolling Bearing Parts-Skeleton Acrylonitrile-buta-diene Copolymers Seal-Specifications
JB/T 6641-2007 Rolling Bearings-Residual Magnetism and Its Assessment Method
JB/T 7048-2002 Rolling Bearing Parts-Plastic Cage-Specifications
JB/T 7051-2006 Rolling Bearing Parts-Methods for the Measurement and Assessment of Surface Roughness
JB/T 8921-1999 Rolling Bearings and Commercial Parts-Inspection Rules