Standard Specification for Car and Tender Journal Bearings, Lined

ABSTRACT
This specification covers the establishment of requirements for lined journal bearings for use on locomotive tenders, passenger cars, and freight equipment cars. Before lining, the brass backs shall be bored and thoroughly tinned in accordance with the best standard practice. After lining, the ends of the bearings shall be made smooth by scraping, filing, or machining. The backing metal shall conform to the requirements specified for named elements for copper alloy UNS No. C94100. The lining metal shall conform to the chemical composition requirements specified for named elements. The finished bearing representing a lot for acceptance shall be broken, either longitudinally or transversely, or both, in order to ascertain the uniformity of the grain of the metal. The chemical analysis of the lining shall be made accordingly.
SCOPE
1.1 This specification covers the establishment of requirements for lined journal bearings for use on locomotive tenders, passenger cars, and freight equipment cars. The alloy specified is UNS No. C94100.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Mar-2011
Current Stage
Ref Project

Relations

Buy Standard

Technical specification
ASTM B67-05(2011) - Standard Specification for Car and Tender Journal Bearings, Lined
English language
3 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B67 −05(Reapproved 2011)
Standard Specification for
Car and Tender Journal Bearings, Lined
This standard is issued under the fixed designation B67; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3. General Requirements
1.1 This specification covers the establishment of require- 3.1 The following sections of Specification B824 constitute
ments for lined journal bearings for use on locomotive tenders, a part of this specification:
passenger cars, and freight equipment cars. The alloy specified 3.1.1 Terminology (Section 3).
3.1.2 Sampling (Section 10).
is UNS No. C94100.
3.1.3 Number of Tests and Retests (Section 11).
1.2 The values stated in inch-pound units are to be regarded
3.1.4 Specimen Preparation (Section 12).
as standard. The values given in parentheses are mathematical
3.1.5 Test Methods (Section 13).
conversions to SI units that are provided for information only
3.1.6 Significance of Numerical Limits (Section 14).
and are not considered standard.
3.1.7 Inspection (Section 15).
1.3 This standard does not purport to address all of the
3.1.8 Rejection and Rehearing (Section 16).
safety concerns, if any, associated with its use. It is the
3.1.9 Certification (Section 17).
responsibility of the user of this standard to establish appro-
3.1.10 Test Report (Section 18).
priate safety and health practices and determine the applica-
3.1.11 Product Marking (Section 19).
bility of regulatory limitations prior to use.
3.1.12 Supplementary Requirements (S1–S4).
2. Referenced Documents
4. Ordering Information
2.1 ASTM Standards: 4.1 Include the following information when placing orders
B824 Specification for General Requirements for Copper for bearings under this specification as applicable:
Alloy Castings
4.1.1 Quantity of bearings required,
E57 Methods for ChemicalAnalysis ofWhite Metal Bearing 4.1.2 ASTM designation and year of issue (for example,
Alloys (Withdrawn 1986)
B67 – 05)
E255 Practice for Sampling Copper and Copper Alloys for 4.1.3 Pattern and drawing number and condition (as cast,
the Determination of Chemical Composition
machined, and so forth),
E527 Practice for Numbering Metals and Alloys in the 4.1.4 Chemical analysis of residual elements, if specified in
Unified Numbering System (UNS)
the purchase order (Section 6),
4.1.5 Fracture testing (Section 8),
4.1.6 Witness inspection (Specification B824), and
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.1.7 Product marking (Section 13).
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting.
5. Materials and Manufacture
Current edition approved April 1, 2011. Published September 2011. Originally
approved in 1927. Last previous edition approved in 2005 as B67 – 05. DOI: 5.1 Before lining, the brass backs shall be bored and
10.1520/B0067-05R11.
thoroughly tinned in accordance with the best standard prac-
The UNS system for copper and copper alloys (see Practice E527) is a simple
tice.Afterlining,theendsofthebearingsshallbemadesmooth
expansion of the former standard designation system accomplished by the addition
by scraping, filing, or machining. They shall not be ground or
of a prefix “C” and a suffix “00”. The suffix can be used to accommodate
composition variations of the base alloy. rubbed with abrasive materials.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 The purchaser reserves the right to inspect the brass
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on backs after boring and previous to tinning and lining.
the ASTM website.
4 5.3 Unless otherwise specified, bearings will be furnished
The last approved version of this historical standard is referenced on
www.astm.org. with linings ⁄4 in. (6.35 mm) in thickness.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B67−05 (2011)
TABLE 1 Chemical Composition of Backing, Copper Alloy UNS No. C94100
NOTE 1—Composition percentages are maximum unless otherwise noted.
Major Elements Residual Elements
Nickel,
Phospho-
Copper Tin Lead Zinc Iron Antimony including Sulfur Aluminum Silicon
rous
Cobalt
A B C
72.0–79.0 4.5–6.5 18.0–22.0 1.0 0.25 0.8 1.0 0.08 0.50 0.005 0.005
A
Cu + Sum of Named Elements, 98.7 %.
B
For continuous castings, S shall be 0.25 % maximum.
C
For continuous castings, P shall be 1.5 % maximum.
5.4 The bearings shall be sound and free of blowholes, When this fracture shows separation, imperf
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.