ASTM F551/F551M-16

Standard Practice for Using a 1.707-m [67.23-in.] Diameter Laboratory Test Roadwheel in Testing Tires

SIGNIFICANCE AND USE
5.1 The 1.707-m [67.23-in.] 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 The laboratory roadwheel described in this practice is suitable for comparative evaluation of tires under controlled operating 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.
SCOPE
1.1 This practice covers the requirements for a 1.707-m [67.23-in.] diameter laboratory roadwheel for durability and endurance testing of tires under controlled operating and environmental conditions.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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.

General Information

• Status: Historical
• Publication Date: 31-Dec-2015
• ICS: 83.160.01 - Tyres in general
• Technical Committee: F09 - Tires
• Drafting Committee: F09.10 - Equipment, Facilities and Calibration

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: F551/F551M − 16
Standard Practice for
Using a 1.707-m [67.23-in.] Diameter Laboratory Test
1
Roadwheel in Testing Tires
This standard is issued under the fixed designation F551/F551M; 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. Scope controlled conditions. It also describes the calibration proce-
dures for the standard operation of the wheel.
1.1 This practice covers the requirements for a 1.707-m
[67.23-in.] diameter laboratory roadwheel for durability and
5. Significance and Use
endurance testing of tires under controlled operating and
5.1 The 1.707-m [67.23-in.] diameter laboratory test road-
environmental conditions.
wheel is one of the most extensively employed testing devices
1.2 The values stated in either SI units or inch-pound units
for tire durability and endurance testing.
are to be regarded separately as standard. The values stated in
5.2 This test apparatus operating in the laboratory at con-
each system may not be exact equivalents; therefore, each
trolled surface speeds, loads, and ambient temperatures
system shall be used independently of the other. Combining
simulates, to a degree, tire-operating conditions resembling
values from the two systems may result in non-conformance
actual service. Because of the roadwheel curvature, the test tire
with the standard.
is fatigued more rapidly than a tire operating on a road.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 5.3 The laboratory roadwheel described in this practice is
responsibility of the user of this standard to establish appro- suitable for comparative evaluation of tires under controlled
priate safety and health practices and determine the applica- operating and environmental conditions.
bility of regulatory limitations prior to use. For specific
5.4 While the laboratory roadwheel may not reproduce
precautionary statements, see Section 7 and Note 1.
structural fatigue exactly as it occurs in service, the laboratory
wheel can be used to produce fatigue under controlled condi-
2. Referenced Documents
tions.
2
2.1 ASTM Standards:
F538 Terminology Relating to the Characteristics and Per- 6. Apparatus
formance of Tires
6.1 Laboratory Test Roadwheel—A laboratory test road-
wheel consists of a large steel wheel against which one or more
3. Terminology
tire-wheel assemblies are pressed at specific loads (see Fig. 1).
3.1 Definitions—Definitions given in Terminology F538 are
6.1.1 The roadwheel shall have an outside diameter of 1.707
regarded as standard.
m [67.23 in.] 6 0.5 %. This dimension originated from the
1
choice of the circumference of the roadwheel as being ⁄300
4. Summary of Practice
mile.
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 1.707-m [67.23-in.] 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
contactwiththetireshallnotbeinexcessof3.18µm[125µin.]
and must be continuous and without holes or projections.
Where it is necessary to provide for the affixing of special test
1
This practice is under the jurisdiction ofASTM Committee F09 on Tires and is
accessories such as cleats, the empty bolt holes in the path of
the direct responsibility of Subcommittee F09.10 on Equipment, Facilities and
Calibration.
the tire contact width should be plugged, so as to match the
Current edition approved Jan. 1, 2016. Published February 2016. Originally
wheel curvature and be within the maximum specified surface
approved in 1977. Last previous edition approved in 2009 as F551/F551M – 09a.
roughness.
DOI: 10.1520/F0551_F0551M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6.1.4 The total indicated radial runout of the wheel shall not
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
exceed 0.25 mm [0.01 in.].
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.2 Loading System:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F551/F551M − 16
FIG. 1 Laboratory Tire Test Roadwheel
6.2.1 The loading system shall be capable of applying and
Wheel Speed Tolerance
controlling the tire loading force to the desired level.
Up to 80 km/h [50 mph] ±0.8 km/h [±0.5 mph]
6.2.2 Thetireloadingforceshallpassthroughtheaxisofthe
80 to
...

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.
Designation: F551/F551M − 09a F551/F551M − 16
Standard Practice for
Using a 1.707-m [67.23-in.] Diameter Laboratory Test
1
Roadwheel in Testing Tires
This standard is issued under the fixed designation F551/F551M; 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. Scope
1.1 This practice covers the requirements for a 1.707-m [67.23-in.] diameter laboratory roadwheel for durability and endurance
testing of tires under controlled operating and environmental conditions.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the 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:
F538 Terminology Relating to the Characteristics and Performance of Tires
3. Terminology
3.1 Definitions—Definitions given in Terminology F538 are regarded as standard.
4. Summary of Practice
4.1 This practice describes the specifications and dimensions of a 1.707-m [67.23-in.] 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 1.707-m [67.23-in.] 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 The laboratory roadwheel described in this practice is suitable for comparative evaluation of tires under controlled operating
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.
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).
1
This practice is under the jurisdiction of ASTM Committee F09 on Tires and is the direct responsibility of Subcommittee F09.10 on Equipment, Facilities and Calibration.
Current edition approved Nov. 1, 2009Jan. 1, 2016. Published December 2009February 2016. Originally approved in 1977. Last previous edition approved in 2009 as
F551 – 09.F551/F551M – 09a. DOI: 10.1520/F0551_F0551M-09A.10.1520/F0551_F0551M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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

---------------------- Page: 1 ----------------------
F551/F551M − 16
FIG. 1 Laboratory Tire Test Roadwheel
6.1.1 The roadwheel shall have an outside diameter of 1.707 m [67.23 in.] 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 3.18 μm [125 μin.] and
must be continuous and without holes or projections. Where it is necessary to provide for the affixing of special test accessories
such as cleats, the empty bolt holes in the path of the tire contact width should be plugged, so as to match the wheel curvature
and be within the maximum specified surface roughness
...