4720-00-186-3887 HOSE ASSEMBLY,NONMETALLIC Index 3020-00-186-3891 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-186-3890

Federal Supply Class:
3020

National Item Identification Number:
001863890

Description:
GEAR,ANTIBACKLASH,SPUR

Detail:
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.


Manufacturer Information:
65689400141ROLLER BEARING CO OF AMERICA, INC
656894-196214RAYTHEON COMPANY
9714AR005800328DESIGNATRONICS INCORPORATED


Techincal Specification:
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.187 INCHES BOTH ENDS
FACE NOMINAL WIDTH0.125 INCHES
HUB NOMINAL DIAMETER0.375 INCHES FIRST END
HUB STYLE DESIGNATORPINNED FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.375 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.030 INCHES
PITCH DIAMETER0.9687 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENTPASSIVATE OVERALL
TEETH QUANTITY31
TOOTH FORMSTANDARD


Click here to Register for Free 30-day Trial