Part Number
Part Number:
NSN:
NIIN:
Item Name:
GEAR , ANTIBACKLASH , SPUR
Definition:
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.
CAGE Information
Code | Company |
---|---|
87557 | LOCKHEED CORP LOCKHEED ELECTRONICS C |
Federal Supply Class
Title
GEARS, PULLEYS, SPROCKETS, AND T
Inclusions:
INCLUDES POWER TRANSMISSION CHAIN; MATCHED GEAR SETS.
Exclusions:
EXCLUDES REDUCTION GEARS (FSC 3010).
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
SFTT | SURFACE TREATMENT | PASSIVATE HUB |
MATT | MATERIAL | ALUMINUM ALLOY 2024 FIRST GEAR |
MATT | MATERIAL | ALUMINUM ALLOY 2024 SECOND GEAR |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB |
CWRM | FACE NOMINAL WIDTH | 0.125 INCHES |
AJLA | TEETH QUANTITY | 96 |
CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
CWWC | CLAMPING SURFACE NOMINAL LENGTH | 0.188 INCHES FIRST END |
CWCD | NOMINAL OUTSIDE DIAMETER | 1.098 INCHES |
AGJS | PITCH DIAMETER | 0.9990 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM |
ABSX | ATTACHMENT METHOD | CLAMP |
STYL | STYLE DESIGNATOR | PROTRUDING HUB |
CWTX | HUB NOMINAL DIAMETER | 0.250 INCHES FIRST END |
MATT | MATERIAL | STEEL CORROSION RESISTING SPRING |
CWTR | HUB STYLE DESIGNATOR | SPLIT FIRST END |
SFTT | SURFACE TREATMENT | ANODIZE FIRST GEAR |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
ANTP | BORE STYLE | PLAIN BOTH ENDS |
SFTT | SURFACE TREATMENT | ANODIZE SECOND GEAR |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
MATT | MATERIAL | STEEL COMP 303 HUB |
CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.313 INCHES FIRST END |
CWRS | BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS |
CWNH | TOOTH FORM | STANDARD |