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OKB-122-7(GOST 18179-72)

Analogues: CIATIM-201, OKB-122-7-5

Bearings of aviation vehicles and coordinate-boring machines, precision bearings, precision mechanisms, electro machines. Good conservation and extreme pressure properties, water resistance, satisfactory colloid and chemical stability. The multipurpose and conservation grease. The grease is workable at temperature from minus 40 to plus 1000 Celsius degree. The mixture organosilicon liquid and petroleum oil thickened with stearate lithium and ceresin.



Grease OKB-122-7. GOST 18179-72. Specifications (with Changes N 1, 2, 3)

International standard

Grease OKB-122-7

Specifications

Information data


 

1.Developed and introduced by the Ministry of oil refining and petrochemical industry of the USSR.

2.Approved and put into effect by the resolution of the State Committee of standards of the Council of Ministers of the USSR dated 20.10.72 N 1922.

3. Entered for the first time

4. Reference regulatory and technical documents

 

Designation of the reference document, which is given the link

Paragraph number

GOST 9.080-77

1.2

GOST 12.1.007-76

1.3.1

GOST 111-90

3.2

GOST 1050-88

3.3

GOST 1510-84

4.1

GOST 2477-65

1.2

GOST 2517-85

2.3; 3.1

GOST 4784-97

3.3

GOST 6479-73

1.2

GOST 6707-76

1.2

GOST 7142-74

1.2

GOST 7143-73

1.2

GOST 7163-84

1.2

GOST 9566-74

1.2

GOST 15527-70

1.2

GOST 23258-78

Introduction part

 

5. The term limit was lifted under Protocol N 3-93 of the Interstate Council for standardization, metrology and certification (IUS 5-6-93).

6. Edition with Changes N 1, 2, 3 approved in November 1975, in September 1980, in March 1988 (IUS 11-75, 10-83, 7-88).

This standard applies on the OKB-122-7 grease produced by thickening of the mixture of polysiloxane liquid and petroleum oil thickened with ceresin and lithium soap and intended to operate in ball-bearings and other friction units at the range of temperatures from minus 120 to plus 60 Celsius degree.

Designation of the grease according to GOST 23258 – PT-LI4/12 КН4.

1. Specifications

1.1 The grease must be manufactured in accordance with the technology and recepture approved in established order and correspond the grease samples have passed tests with positive results.

1.2 According to physical and chemical indicators, the grease must comply with the requirements and standards are represented below:


 



Indicator name

Standard

Test method

1. Appearance

Homogeneous ointment, smooth structure from light yellow to light brown color.

According to paragraph 3.2.

2. Viscosity:


According to GOST 7163

at minus 50 Celsius degree and average gradient of deformation is 1000 sec, not less than

1,2


at minus 30 Celsius degree and average gradient of deformation is 10 sec, not less than

1800


3. Colloidal stability, % of the released oil, no more

10,0

According to GOST 7142

4. Tensile strength at 50 Celsius degree, Pa, not less than

120

According to GOST 7143

5. Mass fraction of alkali in terms of NaOH, %, no more

0,03

According to GOST 6707

6. Water contents

Absentee

According to GOST 2477

7. Corrosion effects on metals

It withstands

According to GOST 5757 with addition and under paragraph 3.3 of this standard

8. Mechanical impurities contents

Absentee

According to GOST 6479

9. Penetration at temperature of 100 Celsius degree, during 1 hour, %, no more than

3,5

According to GOST 9566

(Revised version, Ed. N 1, 3).


 

1.3 According to the degree of impact on the body, the OKB-122-7 grease belongs to the 4th hazard class according to GOST 12.1.007.

(Revised version, Ed. N 1).

1.4 Maximum permissible concentration of petroleum oil coming in the composition of the grease in the air of the production room is 300 mg/m. The contents of oil vapors in the air environment is determined by the УГ-2 device.

1.5 The grease is flammable. The flash point of the liquid base isn’t below than 175 Celsius degree.

In case of ignites of the grease the following fire extinguishing means are applicable: finely dispersed water, foam, in case of the volumetric extinguishing - carbon dioxide, the composition of compressed liquid bromine ethyl, the composition 3,5 and superheated steam.

1.6 While operate with the grease must apply personal protective equipment according to the industry standards approved in the established order.

1.5-1.6 (Entered additionally, Ed. N 3).

2. Acceptance rules

2.1 The grease is taken in batches. A batch is considered to be amount of quantity of grease weighing up to 130 kg, homogeneous on the quality indicators and accompanied by single quality document.

(Revised version, Ed. N 2)

2.2 The volume of samples is determined according to GOST 2517.

2.4 If unsatisfactory test results are obtained for at least one indicator, repeated tests are performed on a newly selected sample take from the same sample.

The results of repeated tests are distributed to the entire batch.

(Revised version, Ed. N 2)

3. Test methods

3.1 Samples of the OKB-122-7 grease are taken according to GOST 2517. The mass of the combined sample is 1,6 kg of the grease.

3.2 To determine the appearance, the grease is applied with a spatula on the glass plate size 50x70x2 mm according to GOST 111 using a template (internal dimensions 35x35, thick 2 mm) and viewed with the naked eye in passing light.

3.1, 3.2 (Revised version, Ed. N 2).

3.3 The corrosion effect on metals is carried out on the steel plates grades 40 or 50 according to GOST 1050 and on the brasses plates grades L-63 according to GOST 15527 and on the duralumin grades DL-T according to GOST 4784.

(Revised version, Ed. N 3).

4. Packing, labeling, transportation and storage

5.1 Packing, labeling, transportation and storage of the grease is carried out according to GOST 1510 with the following addition: the grease is packed in aluminum tubes and banks made of white tin with a capacity of 0,1 to 0,85 kg.

5. Manufacturer’s guarantee

5.1 The manufacturer guarantees the conformity of the grease the requirements of this standard if the storage and transportation conditions are met.

(Revised version, Ed. N 2).

5.2 The warranty period for storing of the OKB-122-7 grease is 5 years from the day of manufacture.

5.3 (Excluded, Ed. N 2).


 
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