ASTM F551-09
(Practice)Standard Practice for Using a 67.23-in. (1.707-m) Diameter Laboratory Test Roadwheel in Testing Tires
Standard Practice for Using a 67.23-in. (1.707-m) Diameter Laboratory Test Roadwheel in Testing Tires
SIGNIFICANCE AND USE
The 67.23-in. (1.707-m) diameter laboratory test roadwheel is one of the most extensively employed testing devices for tire durability and endurance testing.
This test apparatus operating in the laboratory at controlled surface speeds, loads, and ambient temperatures simulates, to a degree, tire-operating conditions resembling actual service. Because of the roadwheel curvature, the test tire is fatigued more rapidly than a tire operating on a road.
The laboratory roadwheel described in this practice is suitable for comparative evaluation of tires under controlled operating and environmental conditions.
While the laboratory roadwheel may not reproduce structural fatigue exactly as it occurs in service, the laboratory wheel can be used to produce fatigue under controlled conditions.
SCOPE
1.1 This practice covers the requirements for a 67.23-in. (1.707-m) diameter laboratory roadwheel for durability and endurance testing of tires under controlled operating and environmental conditions.
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. For specific precautionary statements, see Section 7 and Note 1.
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Designation:F551–09
Standard Practice for
Using a 67.23-in. (1.707-m) Diameter Laboratory Test
1
Roadwheel in Testing Tires
ThisstandardisissuedunderthefixeddesignationF551;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
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.
1. Scope 5. Significance and Use
1.1 This practice covers the requirements for a 67.23-in. 5.1 The 67.23-in. (1.707-m) diameter laboratory test road-
(1.707-m) diameter laboratory roadwheel for durability and wheel is one of the most extensively employed testing devices
endurance testing of tires under controlled operating and for tire durability and endurance testing.
environmental conditions. 5.2 This test apparatus operating in the laboratory at con-
1.2 The values stated in inch-pound units are to be regarded trolled surface speeds, loads, and ambient temperatures simu-
as standard. The values given in parentheses are mathematical lates, to a degree, tire-operating conditions resembling actual
conversions to SI units that are provided for information only service. Because of the roadwheel curvature, the test tire is
and are not considered standard. fatigued more rapidly than a tire operating on a road.
1.3 This standard does not purport to address all of the 5.3 The laboratory roadwheel described in this practice is
safety concerns, if any, associated with its use. It is the suitable for comparative evaluation of tires under controlled
responsibility of the user of this standard to establish appro- operating and environmental conditions.
priate safety and health practices and determine the applica- 5.4 While the laboratory roadwheel may not reproduce
bility of regulatory limitations prior to use. For specific structural fatigue exactly as it occurs in service, the laboratory
precautionary statements, see Section 7 and Note 1. wheel can be used to produce fatigue under controlled condi-
tions.
2. Referenced Documents
2
6. Apparatus
2.1 ASTM Standards:
F538 Terminology Relating to the Characteristics and Per- 6.1 Laboratory Test Roadwheel—A laboratory test road-
formance of Tires wheel consists of a large steel wheel against which one or more
tire-wheel assemblies are pressed at specific loads (see Fig. 1).
3. Terminology
6.1.1 Theroadwheelshallhaveanoutsidediameterof67.23
3.1 Definitions—Definitions given in Terminology F538 are
in. (1.707 m) 6 0.5 %. This dimension originated from the
1
regarded as standard. choice of the circumference of the roadwheel as being ⁄300
mile.
4. Summary of Practice
6.1.2 The width of the roadwheel shall be such that the
4.1 This practice describes the specifications and dimen-
edges are not in contact with the tire under test.
sions of a 67.23-in. (1.707-m) diameter laboratory roadwheel
6.1.3 The surface roughness of the roadwheel that is in
system for testing of one or more tire assemblies under
contactwiththetireshallnotbeinexcessof125µin.(3.18µm)
controlled conditions. It also describes the calibration proce-
and must be continuous and without holes or projections.
dures for the standard operation of the wheel.
Where it is necessary to provide for the affixing of special test
accessories such as cleats, the empty bolt holes in the path of
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the tire contact width should be plugged, so as to match the
This practice is under the jurisdiction ofASTM Committee F09 on Tires and is
the direct responsibility of Subcommittee F09.10 on Equipment, Facilities and wheel curvature and be within the maximum specified surface
Calibration.
roughness.
Current edition approved June 1, 2009. Published June 2009. Originally
6.1.4 The total indicated radial runout of the wheel shall not
approved in 1977. Last previous edition approved in 2000 as F551 – 89 (2000) was
exceed 0.01 in. (0.25 mm).
withdrawn in January 2009 and reinstated in June 2009. DOI: 10.1520/F0551-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 Loading System:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2.1 The loading system shall be capable of applying and
Standards volume information, refer to the standard’s Document Summary page on
controlling the tire loading force to the desired level.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F551–09
FIG. 1 Laboratory Tire Test Roadwheel
6.2.2 Thetireloadingforceshallpassthroughtheaxisofthe
Wheel Surface 60.5 %
tire under test and the axis of the roadwheel at all times.
6.2.3 The axis of rotation of the roadwheel and the axis of
7. Safety Precautions
rotation of
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:F551–89(Reapproved 1995) Designation: F 551 – 09
Standard Practice for
Using a 67.23-in. (1.707-m) Diameter Laboratory Test
1
Roadwheel in Testing Tires
This standard is issued under the fixed designation F 551; 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.
1
´ NOTE—Keywords were added editorially in November 1995.
1. Scope
1.1 This practice covers the requirements for a 67.23-in. (1.707-m) diameter laboratory roadwheel for durability and endurance
testing of tires under controlled operating and environmental conditions.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
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. For specific precautionary statements, see Section 7 and Note 1.
2. Referenced Documents
2
2.1 ASTM Standards:
F 538 Terminology Relating to the Characteristics and Performance of Tires
3. Terminology
3.1 Definitions—Definitions given in Terminology F 538 are regarded as standard.
4. Summary of Practice
4.1 This practice describes the specifications and dimensions of a 67.23-in. (1.707-m) diameter laboratory roadwheel system for
testing of one or more tire assemblies under controlled conditions. It also describes the calibration procedures for the standard
operation of the wheel.
5. Significance and Use
5.1 The 67.23-in. (1.707-m) diameter laboratory test roadwheel is one of the most extensively employed testing devices for tire
durability and endurance testing.
5.2 This test apparatus operating in the laboratory at controlled surface speeds, loads, and ambient temperatures simulates, to
a degree, tire-operating conditions resembling actual service. Because of the roadwheel curvature, the test tire is fatigued more
rapidly than a tire operating on a road.
5.3 Thelaboratoryroadwheeldescribedinthispracticeissuitableforcomparativeevaluationoftiresundercontrolledoperating
and environmental conditions.
5.4 While the laboratory roadwheel may not reproduce structural fatigue exactly as it occurs in service, the laboratory wheel
can be used to produce fatigue under controlled conditions.
1
This practice is under the jurisdiction of ASTM Committee F-9 F09 on Tires and is the direct responsibility of Subcommittee F09.10 on Equipment, Facilities, and
Calibration.
Current edition approved Aug. 25, 1989. Published October 1989. Originally published as F551–77. Last previous edition F551–84.on Equipment, Facilities and
Calibration.
Current edition approved June 1, 2009. Published June 2009. Originally approved in 1977. Last previous edition approved in 2000 as F 551 – 89 (2000) was withdrawn
in January 2009 and reinstated in June 2009.
2
Annual Book of ASTM Standards, Vol 09.02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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F551–09
6. Apparatus
6.1 Laboratory Test Roadwheel—A laboratory test roadwheel consists of a large steel wheel against which one or more
tire-wheel assemblies are pressed at specific loads (see Fig. 1).
6.1.1 The roadwheel shall have an outside diameter of 67.23 in. (1.707 m) 6 0.5 %. This dimension originated from the choice
1
of the circumference of the roadwheel as being ⁄300 mile.
6.1.2 The width of the roadwheel shall be such that the edges are not in contact with the tire under test.
6.1.3 The surface roughness of the roadwheel that is in contact with the tire shall not be in excess of 125 µin. (3.18 µm) and
must be continuous and without holes or projections. Where it is necessary to provid
...
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