3120-00-705-8030, BEARING,PLAIN,SELF-ALIGNING

4720-00-705-8020 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
3120-00-705-8030

Federal Supply Class:
3120

National Item Identification Number:
007058030

Description:
BEARING,PLAIN,SELF-ALIGNING

Detail:
A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes BEARING, PLAIN, ROD END and BEARING, PLAIN, SPHERICAL.

Manufacturer Information:

7058030

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

MATERIAL	STEEL COMP 1118 INNER MEMBER
	STEEL OUTER RACE MEMBER
	STEEL COMP 1118 RACE INSERT
STYLE DESIGNATOR	WITH INSERT AND/OR LINER
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
	QQ-S-636,COND 5 FED SPEC SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
	QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE RACE INSERT
HARDNESS RATING	55.0 ROCKWELL C MINIMUM INNER MEMBER
	60.0 ROCKWELL C MAXIMUM RACE INSERT
SURFACE TREATMENT	ZINC AND
	CHROMATE INNER MEMBER
	ZINC AND
	CHROMATE RACE INSERT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-Z-325,CL 2 FED SPEC ALL TREATMENT RESPONSES INNER MEMBER
	QQ-Z-325,CL 2 FED SPEC ALL TREATMENT RESPONSES RACE INSERT
BORE DIAMETER	1.3725 INCHES MINIMUM AND
	1.3740 INCHES MAXIMUM
OUTER MEMBER OUTSIDE DIAMETER	2.4360 INCHES MINIMUM AND
	2.4380 INCHES MAXIMUM
OUTER MEMBER WIDTH	1.4050 INCHES MINIMUM AND
	1.4450 INCHES MAXIMUM
INNER MEMBER WIDTH	1.8650 INCHES MINIMUM AND
	1.8700 INCHES MAXIMUM
LUBRICATION FEATURE	PERFORATION EXTERNAL SURFACE MEMBER
	GROOVE INTERNAL SURFACES

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