FED-STD-791 Lubricants, Liquid Fuels, And Related Products, Testing Method OfThis test method standard is composed of standard test methods for sampling, inspecting and testing lubricants, liquid fuels and related products. It is issued pursuant to the Federal Property and Administration Services Act of 1949, as amended and its application to the purchase of commodities referred to herein is mandatory on all Federal agencies.

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'�NOTE:This draft dated 15 April 2006' by DasH - Page 174 of 460

FED-STD-791D

D-B-67016

Test-Oil Sump Components, Bearing Test Rig

(Application for copies should be addressed to the Air Force Aero Propulsion Laboratory,

Attn: AFWAL/POSL, Wright-Patterson Air Force Base, Ohio 45433.)

4.1.1 Other publications. The following documents form a part of this method to the

extent specified herein. Unless otherwise indicated the issue in effect on date of invitation for

bids or request for proposal shall apply.

Society of Automotive Engineers (SAE)

AMS 3652, 3656,

Polytetrafluoroethylene

3660, 3667

AMS 5040

Carbon Steel Sheet and Strip, Deep Forming Grade

SAE J1966

Lubricating Oil, Aircraft Piston Engine (Non-dispersant mineral oil)

(Application for copies should be addressed to the Society of Automotive Engineers,

Incorporated, 400 Commonwealth Drive, Warrendale, PA. 15096.)

American Society for Testing and Materials (ASTM)

Viscosity of Transparent and Opaque Liquids (Kinematic and Dynamic

ASTM D 445

Viscosities)

Neutralization Number of Potentiometer Titration

ASTM D 664

(Application for copies should be addressed to the American Society for Testing and

Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.)

4.2 The apparatus used in this method is the bearing deposition rig which consists of a

100-mm roller bearing machine, a suitable drive and support-oil system, and a specially designed

test-oil system.

4.2.1 100-mm roller bearing head. The bearing head is divided internally into two main

sections, as shown on Figure 1. The front, or test section with its separate test-oil system, houses

the unshielded 100-mm straight-roller test bearing, A. Heating of the test bearing is achieved by

supplying heat to the bearing outer race. The outer race is secured in a bearing mount assembly

containing a circular-wound tubular heating element, B, packed in aluminum oxide. Heater

control is provided by a West Instrument Corporation type JP controller, or equivalent, in

conjunction with a manually variable voltage transformer. A watt-hour meter is also contained

in the heater circuit and is connected between the heater and controller to monitor total power

input. The rear or support section of the bearing head houses the externally loaded bearing, D,

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