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Standard

Plain Bearing Radial Limit and Ultimate Load Tests

2022-08-08
WIP
ARP5448/1B
This test method outlines the recommended procedure for performing radial limit load and ultimate load tests on low speed airframe and high speed helicopter rotor head bearings.
Standard

Bearings, Plain and PTFE Lined, Self-Aligning

2022-02-16
CURRENT
AS8942A
This SAE Aerospace Standard (AS) establishes the requirements for self-aligning, self-lubricating plain spherical bearings incorporating polytetrafluoroethylene (PTFE) in a liner between the ball and the outer race for use in a temperature range of -65 to +250 °F (-54 to +121 °C).
Standard

Plain Bearing Low Speed Oscillation Test

2021-09-28
WIP
ARP5448/3B
This test method outlines a recommended procedure for performing unidirectional load dynamic testing of self-lubricating bearings at room temperature, elevated temperature or sub-zero temperature, dry or contaminated with fluids. The wear data from these tests is to be used for qualification and to establish bearing design criteria.
Standard

Bearings, Plain, Self-Aligning, All Metal, General Specification for

2021-03-15
WIP
AS8976B
This specification covers all metal plain spherical bearings which are self-aligning for use between -65 °F and 250 °F. this specification covers bearings with alloy stell races, aluminum bronze races, and an entierly CRES bearing (ball and race). All units are inces, unless otherwise stated.
Standard

Bearings, Elastomeric General Specification for

2021-02-11
CURRENT
AS85598
This standard defines general requirements for spherical, radial-journal, conical, and thrust bearings which are of laminated elastomeric construction. These bearings are for use in an environment having a temperature spectrum of -65 to +160 °F while reacting steady state loads in addition to oscillating loads and motions. The operating temperature range of -65 to +160 °F reflects the current temperature range for existing parts, but allows for expansion in the future.
Standard

Plain Bearing Lined Inside Diameter Plug Gaging

2019-05-23
CURRENT
ARP5448/9B
This test method establishes a standard procedure for using plug gages to evaluate dimensional conformance of lined inside diameters of bearings. Bearings covered by this test method include sleeve bearings and lined bore spherical bearings. Note that this method gives no indication of true cylindricity.
Standard

Bearings, Plain, Self-Aligning, Self-Lubricating, 300 cpm Oscillation (13 fpm), -65 to +160 °F (-54 to +71 °C), Liners Less Than 0.015 inches

2018-08-23
CURRENT
AS82819
This standard covers the requirements for spherical, self-aligning, self-lubricating, bearings which are for use in the ambient temperature range of -65 to +160 °F (-54 to +71 °C) at high cyclic speeds 300 cpm (13 fpm) for liners with a thickness less than 0.015 inch. The scope of this standard is to provide a liner system qualification procedure for helicopter sliding bearings defined and controlled by source control drawings. Once a liner system is qualified, the source-controlled bearings are further tested under application conditions. Under Department of Defense (DoD) Policies and Procedures, any qualification requirements and associated Qualified Products List (QPLs) are mandatory for DoD contracts. Any materials relating to QPLs have not been adopted by SAE and are not part of this SAE technical document.
Standard

Bearings, Plain, Self-Aligning, Self-Lubricating, 1400 cpm (15 fpm), Oscillation, -65 to +160 °F (-54 to +71 °C)

2018-08-23
CURRENT
AS83819
This standard covers the requirements for spherical, self-aligning, self-lubricating, bearings which are for use in the ambient temperature range of -65 to +160 °F (-54 to +71 °C) at high cyclic speeds 1400 cpm (15 fpm). The scope of this standard is to provide a liner system qualification procedure for helicopter sliding bearings defined and controlled by source control drawings. Once a liner system is qualified, the source-controlled bearings are further tested under application conditions. Under Department of Defense (DoD) Policies and Procedures, any qualification requirements and associated Qualified Products List (QPLs) are mandatory for DoD contracts. Any materials relating to QPLs have not been adopted by SAE and are not part of this SAE technical document.
Standard

Plain Bearing Test Methods

2018-08-23
CURRENT
ARP5448B
This SAE Aerospace Recommended Practice (ARP) establishes methods for testing airframe plain bearings. The purpose of ARP5448 and its associated slash sheets is to document test methods commonly used to evaluate airframe bearings. These test methods may be referenced in specifications, part standards, purchase orders, etc., when the test is deemed appropriate to the intended use of the bearing by the end user of the bearing. These test methods are not intended to encompass every conceivable requirement for an airframe bearing. The end user of the bearing must exercise engineering judgment to determine the most appropriate standard and/or nonstandard tests for the application.
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