6675-00-490-1928 COLLIMATOR,VERTICAL,SURVEYING Index 3120-00-490-1937 ROLLER,LINEAR-ROTARY MOTION

National Stock Number:
3120-00-490-1936

Federal Supply Class:
3120

National Item Identification Number:
004901936

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:
A6057910522WASHINGTON SCIENTIFIC INDUSTRIES INC


Techincal Specification:
BORE INSIDE DIAMETER0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
CASEHARDENING INDICATORCASEHARDENED
CHAMFER/RADIUS OF OUTSIDE CORNER0.031 IN. CHAMFER
FACE WIDTH0.173 INCHES MINIMUM AND 0.178 INCHES MAXIMUM
OUTSIDE DIAMETER0.467 INCHES MINIMUM AND 0.468 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 8620 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 8620
METALLIC HARDNESS RATING58.0 MINIMUM ROCKWELL C AND 62.0 MAXIMUM ROCKWELL C
STYLE DESIGNATORPLAIN


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