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Standard Test Method for Evaluation of the Load Carrying Properties of Lubricants Used for Final Drive Axles, Under Conditions of High Speed and Shock Loading
Automaticky preložený názov:
Štandardná skúšobná metóda pre hodnotenie nákladovej prepravné vlastnosti mazadiel používaných pre Final hnacie nápravy , v podmienkach vysokej rýchlosti a Shock Loading
NORMA vydaná dňa 15.4.2012
Označenie normy: ASTM D7452-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.4.2012
Kód tovaru: NS-38491
Počet strán: 28
Približná hmotnosť: 84 g (0.19 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
automotive gear oils, extreme pressure lubricants, final drive axle, hypoid gear lubricants, L-42, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
Significance and Use | ||||||||
Final drive axles are often subjected to severe service where they encounter high speed shock torque conditions, characterized by sudden accelerations and decelerations. This severe service can lead to scoring distress on the ring gear and pinion surface. This test method measures anti-scoring properties of final drive lubricants. This test method is used or referred to in the following documents: American Petroleum Institute (API) Publication 1560. SAE J308 and SAE J2360. |
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1. Scope | ||||||||
1.1 This test method covers the determination of the anti-scoring properties of final drive axle lubricating oils when subjected to high-speed and shock conditions. This test method is commonly referred to as the L-42 test. 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. 1.2.1 Exceptions—SI units are provided for all parameters except where there is no direct equivalent such as the units for screw threads, National Pipe Threads/diameters, tubing size, and single source equipment suppliers. 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. Specific warning information is given in Sections 4 and 7. |
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2. Referenced Documents | ||||||||
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