ASTM F2591-06(2013)

Standard Specification for Bearing, Roller, Tapered, Single Row of Rollers (Metric Series)

SCOPE
1.1 This specification covers requirements for metric series, tapered roller bearings with a single row of rollers.  
1.2 Intended Use—The bearings covered in this specification are intended to be used in general industrial and vehicle applications where the operating temperature does not exceed 120°C (250°F).  
1.3 This specification contains many of the requirements of DS3225, which was originally developed by the Department of Defense and maintained by the Defense Supply Center in Richmond. The following government activity codes may be found in the Department of Defense, Standardization Directory SD-1.2    
Preparing Activity  
Custodians  
Review Activities  
DLA-GS4  
Army-AT  
Army-AV    
Navy-MC  
Navy –MC, SH  
Air Force-99  
Air Force-84  
Other-NS
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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: 30-Apr-2013
• ICS: 21.100.20 - Rolling bearings
• Technical Committee: F34 - Rolling Element Bearings
• Drafting Committee: F34.04 - Automotive/Industrial Bearing

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F2591 −06 (Reapproved 2013)
Standard Specification for
Bearing, Roller, Tapered, Single Row of Rollers (Metric
Series)
This standard is issued under the fixed designation F2591; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 2.2 ISO Standard:
ISO 5593 Rolling Bearings—Vocabulary
1.1 This specification covers requirements for metric series,
2.3 Military Standard:
tapered roller bearings with a single row of rollers.
MIL-C-11796 Corrosion Preventative Compound,
1.2 Intended Use—The bearings covered in this specifica-
Petrolatum, Hot Application
tion are intended to be used in general industrial and vehicle
2.4 SAE Standard:
applications where the operating temperature does not exceed
SAEAMS-STD-66 Steel: Chemical Composition and Hard-
120°C (250°F).
enability
1.3 This specification contains many of the requirements of
3. Terminology
DS3225,whichwasoriginallydevelopedbytheDepartmentof
Defense and maintained by the Defense Supply Center in
3.1 Definitions:
Richmond. The following government activity codes may be
3.1.1 For definitions of terms used in this specification refer
found in the Department of Defense, Standardization Directory
to ISO 5593.
SD-1.
3.1.2 effective load center—dimension (a) locates a point on
Preparing Activity Custodians Review Activities
the inner ring (cone) axis that is the center of pressure of all
DLA-GS4 Army-AT Army-AV
resisting forces set up by the bearing rollers. All moments
Navy-MC Navy –MC, SH
should be calculated from this point when determining bearing
Air Force-99 Air Force-84
Other-NS
loading and shaft stresses. A minus value of (a) indicates that
1.4 The values stated in SI units are to be regarded as the center is inside the inner ring (cone) backface.
standard. No other units of measurement are included in this
3.1.3 K factor—the K Factor is the ratio of the basic radial
standard.
dynamic load rating to the basic static load rating.
1.5 This standard does not purport to address all of the
3.1.4 contact angle—these bearing have a contact angle (α)
safety concerns, if any, associated with its use. It is the
between 10 and 19 degrees. The contact angle is the angle
responsibility of the user of this standard to establish appro-
between the line of action of the roller load and a plane
priate safety and health practices and determine the applica-
perpendicular to the bearing axis.
bility of regulatory limitations prior to use.
4. Ordering Information
2. Referenced Documents
4.1 Procurement documents should specify the following:
2.1 ABMA Standard:
4.1.1 Title, number, and date of this specification,
ABMA 19.1 Tapered Roller Bearings—Radial, Metric De-
4.1.2 Part Number (see 8.1),
sign
4.1.3 Nominal dimensions of bearing (bore, outside
diameter, bearing width),
4.1.4 Quantity required,
ThisspecificationisunderthejurisdictionofASTMCommitteeF34onRolling
4.1.5 Inspection records required, and
Element Bearings and is the direct responsibility of Subcommittee F34.04 on
Automotive/Industrial Bearing.
Current edition approved May 1, 2013. Published October 2013. Originally
published in 2006. Last previous edition approved as F2591– 06. DOI: 10.1520/ Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
F2591-06R13. 4th Floor, New York, NY 10036.
2 5
The Military codes that are listed in SD-1 give the address and phone numbers Available from the DOD’s Assist internet site located at: http://
of the DoD contacts. These are found in the DoD’s ASSIST website http:// assist.daps.dla.mil/online/start/.
assist.daps.dla.mil/online/start/. Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Available fromTechstreet, 777 E. Eisenhower Parkway,AnnArbor , MI 48108. Dr., Warrendale, PA 15096-0001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2591−06 (2013)
4.1.6 Required packaging. 8. Part Number
8.1 Part Number—The Part number shall consist of
5. Materials and Manufacture
DS3225, followed by the dash number, followed by -K for a
5.1 Material:
standard grade bearing or -B for a precision grade bearing.
5.1.1 Outer Ring (Cup), Inner Ring (Cone) and Rollers
8.1.1 Examples:
—Bearing quality, carburizing grade alloy or through-
8.1.1.1 DS3225-15-K is a standard grade, 75 mm bore, 145
hardening grade alloy steel in accordance with SAE AMS-
mm OD, 51 mm wide single row tapered roller bearing.
STD-66.
8.1.1.2 DS3225-15-B is a precision grade, 75 mm bore, 145
5.1.2 Cage—Carbon steel (stamped) or powdered process
mm OD, 51 mm wide single row tapered roller bearing.
steel (for example, Sinta Forge) may be used.
8.1.2 The ABMA (American Bearing Manufacturers Asso-
ciation) outer and inner numbers are for reference only and are
6. Physical Properties
not to be used for ordering purposes.
6.1 Hardness—Outer ring (cup), inner ring (cone) and
9. Lubrication
rollers shall be hardened to 58 to 64 HRC.
9.1 Lubrication—Unless specified otherwise, bearings shall
7. Dimensions, Mass, and Permissible Variations be furnished without lubrication.
7.1 Dimensions:
10. Preservation, Packaging and Packing
7.1.1 Dimensions D ,D,d ,d are recommended shaft and
b a b a
10.1 Packaging and packing shall be as specified in the
housing shoulder diameters.
acquisition document.
7.1.2 Dimensions R and r are the maximum fillet radii on
10.2 Preservation:
theshaftandthehousingrespectively,whichwillbeclearedby
10.2.1 Commercial Use—Manufacturer shall coat bearing
the bearing corner. See Fig. 1 and Table 1.
with rust preventative film.
7.2 Tolerances—Precisiongrade(ClassB)shallbespecified
10.2.2 DoD Use—Unlessspecifiedotherwise,bearingsshall
only when technically justified.
be furnished with preservative in accordance with MIL-C-
7.2.1 Standard Grade (Class K)—See Tables 2-5.
11796, Class 3.
7.2.2 Precision Grade (Class B)—See Tables 6-9.
11. Keywords
7.3 Cage Clearance—Designersshouldprovideaclearance
of 3.2 mm minimum between the outside edge of the cage and 11.1 bearing; DS3225; single row bearing; tapered roller
the housing counterbore. bearing
FIG. 1Schematic Drawing, Metric Series, Single Row, Tapered Roller Bearing
F2591−06 (2013)
TABLE 1 Metric Series, Single Row, Tapered Roller Bearing Dimensions
Basic
dD T B C R r d d D D a
ABMA b a b a
Dynamic
Bearing Number
Max. Max.
Dash K
Recommended
Load Rating
Inner Outer Eff.
(see 8.1)
Brg. Shaft Hsg.
No. Factor
Shoulder Diameter
(kN)
Bore O.D. (Cone) (Cup) Load
Outer Inner
Width Fillet Fillet
Width Width Center
(Cup) (Cone)
Shaft Housing Radial Thrust
Rad. Rad.
1 JLM104948-JLM104910 50 82 21.5 21.5 17.0 3.0 0.5 60 55.0 76 78.0 1.91 15.0 7.85 -5.4
2 JM205149-JM
...