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 |
|---|---|
| 11871 | RECON/OPTICAL INC. |
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 |
| SFTT | SURFACE TREATMENT | PASSIVATE HUB |
| CWCD | NOMINAL OUTSIDE DIAMETER | 2.530 INCHES |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE TEETH |
| AJLA | TEETH QUANTITY | 160 |
| CWWC | CLAMPING SURFACE NOMINAL LENGTH | 0.250 INCHES FIRST END |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 0.104 INCHES |
| ABSX | ATTACHMENT METHOD | CLAMP |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| CWTR | HUB STYLE DESIGNATOR | SPLIT FIRST END |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END |
| AGJS | PITCH DIAMETER | 2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM |
| CWTX | HUB NOMINAL DIAMETER | 0.312 INCHES FIRST END |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TY 1 FED SPEC SINGLE TREATMENT RESPONSE HUB |
| ANTP | BORE STYLE | PLAIN BOTH ENDS |
| MATT | MATERIAL | STEEL COMP 303 HUB |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 TEETH |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB |
| SFTT | SURFACE TREATMENT | ANODIZE TEETH |
| CWRS | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| FEAT | SPECIAL FEATURES | THREE UNTHD HOLES THROUGH BODY SPACED 90 DEG APART ON 1.500 IN. DIA BOLT CIRCLE,0.093 IN. DIA ON HUB SIDE 0.375 IN. DIA ON OTHER SIDE OF GEAR |
| CWWK | PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
| CWNH | TOOTH FORM | STANDARD |