3120-00-981-7642 BEARING,PLAIN,SPHERICAL Index 3120-00-981-7644 BEARING,PLAIN,SPHERICAL

National Stock Number:
3120-00-981-7643

Federal Supply Class:
3120

National Item Identification Number:
009817643

Description:
ROLLER,LINEAR-ROTARY MOTION

Detail:
A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes BEARING, ROLLER, CYLINDRICAL; ROLLER, ELECTRICAL SWITCH; and friction bearings. See also CAM FOLLOWER, NEEDLE BEARING.


Manufacturer Information:
579480-273030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
BORE INSIDE DIAMETER0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
CASEHARDENING INDICATORNOT CASE-HARDENED
FACE WIDTH0.170 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
OUTSIDE DIAMETER0.227 INCHES MINIMUM AND 0.228 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, COMP 440C FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 440C
METALLIC HARDNESS RATING56.0 MINIMUM VICKERS AND 65.3 MAXIMUM VICKERS
SPECIAL FEATURES0.375 SPHERICAL RADIUS ON OD; 32 MICROINCH FINISH ON ID AND OD
STYLE DESIGNATORPLAIN


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